2020-09-03 00:02:17,127 INFO [capacityManagement] start correct usage

2020-09-03 00:02:17,572 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 00:02:17,906 WARN clearConfigHistory start

2020-09-03 00:12:17,574 INFO [capacityManagement] start correct usage

2020-09-03 00:12:17,926 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 00:12:18,005 WARN clearConfigHistory start

2020-09-03 00:22:17,928 INFO [capacityManagement] start correct usage

2020-09-03 00:22:18,097 WARN clearConfigHistory start

2020-09-03 00:22:18,182 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 00:32:18,183 INFO [capacityManagement] start correct usage

2020-09-03 00:32:18,271 WARN clearConfigHistory start

2020-09-03 00:32:18,359 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 00:42:18,360 INFO [capacityManagement] start correct usage

2020-09-03 00:42:18,438 WARN clearConfigHistory start

2020-09-03 00:42:18,585 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 00:52:18,585 INFO [capacityManagement] start correct usage

2020-09-03 00:52:18,663 WARN clearConfigHistory start

2020-09-03 00:52:18,957 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 01:02:18,930 WARN clearConfigHistory start

2020-09-03 01:02:18,960 INFO [capacityManagement] start correct usage

2020-09-03 01:02:19,344 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 01:12:19,227 WARN clearConfigHistory start

2020-09-03 01:12:19,345 INFO [capacityManagement] start correct usage

2020-09-03 01:12:19,739 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 01:22:19,523 WARN clearConfigHistory start

2020-09-03 01:22:19,741 INFO [capacityManagement] start correct usage

2020-09-03 01:22:20,001 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 01:32:04,858 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@5054c278 (Communications link failure

The last packet successfully received from the server was 14,808 milliseconds ago.  The last packet sent successfully to the server was 14,885 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 01:32:04,863 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@7ea75f70 (Communications link failure

The last packet successfully received from the server was 5,630 milliseconds ago.  The last packet sent successfully to the server was 5,726 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 01:32:04,870 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@22bb936c (Communications link failure

The last packet successfully received from the server was 745,741 milliseconds ago.  The last packet sent successfully to the server was 745,810 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 01:32:04,875 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@548ad241 (Communications link failure

The last packet successfully received from the server was 743,629 milliseconds ago.  The last packet sent successfully to the server was 743,684 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 01:32:04,881 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@1464812e (Communications link failure

The last packet successfully received from the server was 740,911 milliseconds ago.  The last packet sent successfully to the server was 740,996 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 01:32:04,886 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@50fc100d (Communications link failure

The last packet successfully received from the server was 740,052 milliseconds ago.  The last packet sent successfully to the server was 740,136 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 01:32:04,894 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@2e22c98d (Communications link failure

The last packet successfully received from the server was 716,849 milliseconds ago.  The last packet sent successfully to the server was 716,902 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 01:32:04,898 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@2c381ed2 (Communications link failure

The last packet successfully received from the server was 712,958 milliseconds ago.  The last packet sent successfully to the server was 713,042 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 01:32:04,901 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@1ce5978a (Communications link failure

The last packet successfully received from the server was 709,573 milliseconds ago.  The last packet sent successfully to the server was 709,639 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 01:32:04,905 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@2c299063 (Communications link failure

The last packet successfully received from the server was 709,058 milliseconds ago.  The last packet sent successfully to the server was 709,122 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 01:32:04,910 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@14ff4aca (Communications link failure

The last packet successfully received from the server was 702,240 milliseconds ago.  The last packet sent successfully to the server was 702,296 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 01:32:04,911 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@785d0809 (Communications link failure

The last packet successfully received from the server was 701,632 milliseconds ago.  The last packet sent successfully to the server was 701,700 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 01:32:04,912 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@4834994f (Communications link failure

The last packet successfully received from the server was 699,365 milliseconds ago.  The last packet sent successfully to the server was 699,450 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 01:32:04,913 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@287eb2a2 (Communications link failure

The last packet successfully received from the server was 686,923 milliseconds ago.  The last packet sent successfully to the server was 686,997 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 01:32:04,914 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@4639147d (Communications link failure

The last packet successfully received from the server was 674,619 milliseconds ago.  The last packet sent successfully to the server was 674,676 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 01:32:04,916 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@3aa6448b (Communications link failure

The last packet successfully received from the server was 674,086 milliseconds ago.  The last packet sent successfully to the server was 674,136 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 01:32:04,917 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@67100adf (Communications link failure

The last packet successfully received from the server was 660,036 milliseconds ago.  The last packet sent successfully to the server was 660,087 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 01:32:04,919 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@690460bc (Communications link failure

The last packet successfully received from the server was 655,331 milliseconds ago.  The last packet sent successfully to the server was 655,416 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 01:32:04,920 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@1dcb1fb6 (Communications link failure

The last packet successfully received from the server was 650,115 milliseconds ago.  The last packet sent successfully to the server was 650,197 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 01:32:04,921 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@15419298 (Communications link failure

The last packet successfully received from the server was 632,968 milliseconds ago.  The last packet sent successfully to the server was 633,023 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 01:32:19,780 WARN clearConfigHistory start

2020-09-03 01:32:20,002 INFO [capacityManagement] start correct usage

2020-09-03 01:32:20,130 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 01:42:19,905 WARN clearConfigHistory start

2020-09-03 01:42:20,133 INFO [capacityManagement] start correct usage

2020-09-03 01:42:20,466 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 01:52:20,188 WARN clearConfigHistory start

2020-09-03 01:52:20,468 INFO [capacityManagement] start correct usage

2020-09-03 01:52:20,813 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 02:02:20,466 WARN clearConfigHistory start

2020-09-03 02:02:20,815 INFO [capacityManagement] start correct usage

2020-09-03 02:02:20,944 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 02:12:20,647 WARN clearConfigHistory start

2020-09-03 02:12:20,945 INFO [capacityManagement] start correct usage

2020-09-03 02:12:21,230 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 02:22:21,088 WARN clearConfigHistory start

2020-09-03 02:22:21,233 INFO [capacityManagement] start correct usage

2020-09-03 02:22:21,551 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 02:32:21,296 WARN clearConfigHistory start

2020-09-03 02:32:21,553 INFO [capacityManagement] start correct usage

2020-09-03 02:32:21,677 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 02:42:21,523 WARN clearConfigHistory start

2020-09-03 02:42:21,678 INFO [capacityManagement] start correct usage

2020-09-03 02:42:22,137 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 02:52:21,699 WARN clearConfigHistory start

2020-09-03 02:52:22,138 INFO [capacityManagement] start correct usage

2020-09-03 02:52:22,614 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 03:02:21,903 WARN clearConfigHistory start

2020-09-03 03:02:22,616 INFO [capacityManagement] start correct usage

2020-09-03 03:02:23,068 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 03:12:22,173 WARN clearConfigHistory start

2020-09-03 03:12:23,070 INFO [capacityManagement] start correct usage

2020-09-03 03:12:23,511 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 03:22:22,439 WARN clearConfigHistory start

2020-09-03 03:22:23,511 INFO [capacityManagement] start correct usage

2020-09-03 03:22:23,973 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 03:32:22,616 WARN clearConfigHistory start

2020-09-03 03:32:23,975 INFO [capacityManagement] start correct usage

2020-09-03 03:32:24,272 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 03:42:22,677 WARN clearConfigHistory start

2020-09-03 03:42:24,274 INFO [capacityManagement] start correct usage

2020-09-03 03:42:24,669 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 03:52:22,893 WARN clearConfigHistory start

2020-09-03 03:52:24,672 INFO [capacityManagement] start correct usage

2020-09-03 03:52:25,037 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 04:02:23,075 WARN clearConfigHistory start

2020-09-03 04:02:25,039 INFO [capacityManagement] start correct usage

2020-09-03 04:02:25,282 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 04:12:23,247 WARN clearConfigHistory start

2020-09-03 04:12:25,284 INFO [capacityManagement] start correct usage

2020-09-03 04:12:25,655 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 04:22:23,427 WARN clearConfigHistory start

2020-09-03 04:22:25,656 INFO [capacityManagement] start correct usage

2020-09-03 04:22:25,944 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 04:32:23,617 WARN clearConfigHistory start

2020-09-03 04:32:25,944 INFO [capacityManagement] start correct usage

2020-09-03 04:32:26,290 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 04:42:23,816 WARN clearConfigHistory start

2020-09-03 04:42:26,291 INFO [capacityManagement] start correct usage

2020-09-03 04:42:26,628 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 04:52:24,012 WARN clearConfigHistory start

2020-09-03 04:52:26,629 INFO [capacityManagement] start correct usage

2020-09-03 04:52:26,881 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 05:02:24,223 WARN clearConfigHistory start

2020-09-03 05:02:26,881 INFO [capacityManagement] start correct usage

2020-09-03 05:02:27,278 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 05:12:24,409 WARN clearConfigHistory start

2020-09-03 05:12:27,281 INFO [capacityManagement] start correct usage

2020-09-03 05:12:27,580 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 05:22:24,604 WARN clearConfigHistory start

2020-09-03 05:22:27,581 INFO [capacityManagement] start correct usage

2020-09-03 05:22:27,899 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 05:32:24,882 WARN clearConfigHistory start

2020-09-03 05:32:27,901 INFO [capacityManagement] start correct usage

2020-09-03 05:32:28,362 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 05:42:25,158 WARN clearConfigHistory start

2020-09-03 05:42:28,365 INFO [capacityManagement] start correct usage

2020-09-03 05:42:28,621 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 05:52:25,432 WARN clearConfigHistory start

2020-09-03 05:52:28,624 INFO [capacityManagement] start correct usage

2020-09-03 05:52:28,940 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 06:02:25,621 WARN clearConfigHistory start

2020-09-03 06:02:28,943 INFO [capacityManagement] start correct usage

2020-09-03 06:02:29,311 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 06:12:25,928 WARN clearConfigHistory start

2020-09-03 06:12:29,313 INFO [capacityManagement] start correct usage

2020-09-03 06:12:29,653 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 06:22:26,207 WARN clearConfigHistory start

2020-09-03 06:22:29,655 INFO [capacityManagement] start correct usage

2020-09-03 06:22:30,103 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 06:32:26,567 WARN clearConfigHistory start

2020-09-03 06:32:30,105 INFO [capacityManagement] start correct usage

2020-09-03 06:32:30,485 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 06:42:26,858 WARN clearConfigHistory start

2020-09-03 06:42:30,486 INFO [capacityManagement] start correct usage

2020-09-03 06:42:30,980 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 06:52:27,144 WARN clearConfigHistory start

2020-09-03 06:52:30,981 INFO [capacityManagement] start correct usage

2020-09-03 06:52:31,267 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 07:02:27,430 WARN clearConfigHistory start

2020-09-03 07:02:31,269 INFO [capacityManagement] start correct usage

2020-09-03 07:02:31,523 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 07:12:27,614 WARN clearConfigHistory start

2020-09-03 07:12:31,525 INFO [capacityManagement] start correct usage

2020-09-03 07:12:31,768 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 07:22:27,804 WARN clearConfigHistory start

2020-09-03 07:22:31,769 INFO [capacityManagement] start correct usage

2020-09-03 07:22:32,018 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 07:32:28,113 WARN clearConfigHistory start

2020-09-03 07:32:32,019 INFO [capacityManagement] start correct usage

2020-09-03 07:32:32,210 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 07:42:28,396 WARN clearConfigHistory start

2020-09-03 07:42:32,211 INFO [capacityManagement] start correct usage

2020-09-03 07:42:32,563 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 07:52:28,666 WARN clearConfigHistory start

2020-09-03 07:52:32,564 INFO [capacityManagement] start correct usage

2020-09-03 07:52:33,022 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 08:02:28,935 WARN clearConfigHistory start

2020-09-03 08:02:33,024 INFO [capacityManagement] start correct usage

2020-09-03 08:02:33,290 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 08:12:29,141 WARN clearConfigHistory start

2020-09-03 08:12:33,291 INFO [capacityManagement] start correct usage

2020-09-03 08:12:33,686 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 08:34:24,406 WARN clearConfigHistory start

2020-09-03 08:34:25,977 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@9c9016a (Communications link failure

The last packet successfully received from the server was 1,213,945 milliseconds ago.  The last packet sent successfully to the server was 1,214,041 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 08:34:25,977 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@4a3db5d (Communications link failure

The last packet successfully received from the server was 1,193,284 milliseconds ago.  The last packet sent successfully to the server was 1,193,354 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 08:34:26,017 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@6f21e30c (Communications link failure

The last packet successfully received from the server was 1,193,605 milliseconds ago.  The last packet sent successfully to the server was 1,193,670 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 08:34:26,017 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@44e8b29b (Communications link failure

The last packet successfully received from the server was 2,235,888 milliseconds ago.  The last packet sent successfully to the server was 2,235,944 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 08:34:26,017 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@49285b57 (Communications link failure

The last packet successfully received from the server was 2,247,769 milliseconds ago.  The last packet sent successfully to the server was 2,247,841 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 08:34:26,017 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@762ca735 (Communications link failure

The last packet successfully received from the server was 2,228,600 milliseconds ago.  The last packet sent successfully to the server was 2,228,667 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 08:34:26,018 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@1389c045 (Communications link failure

The last packet successfully received from the server was 2,215,426 milliseconds ago.  The last packet sent successfully to the server was 2,215,517 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 08:34:26,018 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@26386ff9 (Communications link failure

The last packet successfully received from the server was 2,223,875 milliseconds ago.  The last packet sent successfully to the server was 2,223,931 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 08:34:26,018 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@674dacf1 (Communications link failure

The last packet successfully received from the server was 2,216,376 milliseconds ago.  The last packet sent successfully to the server was 2,216,466 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 08:34:26,018 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@27f14831 (Communications link failure

The last packet successfully received from the server was 2,209,605 milliseconds ago.  The last packet sent successfully to the server was 2,209,664 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 08:34:26,019 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@a555bf7 (Communications link failure

The last packet successfully received from the server was 2,202,255 milliseconds ago.  The last packet sent successfully to the server was 2,202,346 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 08:34:26,019 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@77aa86a0 (Communications link failure

The last packet successfully received from the server was 2,203,189 milliseconds ago.  The last packet sent successfully to the server was 2,203,245 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 08:34:26,019 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@26ce3323 (Communications link failure

The last packet successfully received from the server was 2,185,889 milliseconds ago.  The last packet sent successfully to the server was 2,185,981 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 08:34:26,019 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@5e39e3c0 (Communications link failure

The last packet successfully received from the server was 2,176,288 milliseconds ago.  The last packet sent successfully to the server was 2,176,403 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 08:34:26,019 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@10b600d3 (Communications link failure

The last packet successfully received from the server was 2,174,632 milliseconds ago.  The last packet sent successfully to the server was 2,174,733 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 08:34:26,019 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@3a5944cf (Communications link failure

The last packet successfully received from the server was 2,171,730 milliseconds ago.  The last packet sent successfully to the server was 2,171,820 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 08:34:26,019 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@5454a964 (Communications link failure

The last packet successfully received from the server was 2,166,590 milliseconds ago.  The last packet sent successfully to the server was 2,166,680 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 08:34:26,022 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@7469f653 (Communications link failure

The last packet successfully received from the server was 2,145,563 milliseconds ago.  The last packet sent successfully to the server was 2,145,635 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 08:34:26,022 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@6c7637a9 (Communications link failure

The last packet successfully received from the server was 2,127,861 milliseconds ago.  The last packet sent successfully to the server was 2,127,930 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 08:34:26,023 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@4591f141 (Communications link failure

The last packet successfully received from the server was 2,154,364 milliseconds ago.  The last packet sent successfully to the server was 2,154,449 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 08:34:26,589 WARN HikariPool-1 - Thread starvation or clock leap detected (housekeeper delta=20m12s33ms706µs100ns).

2020-09-03 08:34:27,410 ERROR clearConfigHistory error : org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 3002ms.

2020-09-03 08:34:51,259 ERROR CONSOLE

org.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction; nested exception is java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 3000ms.
	at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:305)
	at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:378)
	at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:137)
	at com.alibaba.nacos.config.server.service.repository.extrnal.ExternalStoragePersistServiceImpl.addConfigInfo(ExternalStoragePersistServiceImpl.java:182)
	at com.alibaba.nacos.config.server.service.repository.extrnal.ExternalStoragePersistServiceImpl.insertOrUpdate(ExternalStoragePersistServiceImpl.java:343)
	at com.alibaba.nacos.config.server.controller.ConfigController.publishConfig(ConfigController.java:162)
	at com.alibaba.nacos.config.server.controller.ConfigController$$FastClassBySpringCGLIB$$dbb89c38.invoke(<generated>)
	at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:749)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
	at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:88)
	at com.alibaba.nacos.config.server.aspect.RequestLogAspect.logClientRequest(RequestLogAspect.java:105)
	at com.alibaba.nacos.config.server.aspect.RequestLogAspect.interfacePublishSingle(RequestLogAspect.java:73)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:644)
	at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:633)
	at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:175)
	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:93)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688)
	at com.alibaba.nacos.config.server.controller.ConfigController$$EnhancerBySpringCGLIB$$b55a3463.publishConfig(<generated>)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:189)
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:800)
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1038)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005)
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:908)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:96)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:90)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at com.alibaba.nacos.core.auth.AuthFilter.doFilter(AuthFilter.java:60)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at com.alibaba.nacos.config.server.filter.NacosWebFilter.doFilter(NacosWebFilter.java:67)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:209)
	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)
	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357)
	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:117)
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:106)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:668)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:791)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 3000ms.
	at com.zaxxer.hikari.pool.HikariPool.createTimeoutException(HikariPool.java:689)
	at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:196)
	at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:161)
	at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:128)
	at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:262)
	... 104 common frames omitted
Caused by: java.sql.SQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:110)
	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:89)
	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:63)
	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:73)
	at com.mysql.cj.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:905)
	at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:830)
	at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:455)
	at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:240)
	at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:199)
	at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138)
	at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:354)
	at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:202)
	at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:473)
	at com.zaxxer.hikari.pool.HikariPool.access$100(HikariPool.java:71)
	at com.zaxxer.hikari.pool.HikariPool$PoolEntryCreator.call(HikariPool.java:719)
	at com.zaxxer.hikari.pool.HikariPool$PoolEntryCreator.call(HikariPool.java:705)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	... 1 common frames omitted
Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
	at sun.reflect.GeneratedConstructorAccessor90.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
	at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
	at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:91)
	at com.mysql.cj.NativeSession.connect(NativeSession.java:152)
	at com.mysql.cj.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:849)
	... 15 common frames omitted
Caused by: java.net.NoRouteToHostException: No route to host: connect
	at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
	at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:606)
	at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:155)
	at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:65)
	... 17 common frames omitted
2020-09-03 08:34:54,690 ERROR remove beta data error

org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 3001ms.
	at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:81)
	at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:612)
	at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:669)
	at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:700)
	at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:712)
	at org.springframework.jdbc.core.JdbcTemplate.queryForObject(JdbcTemplate.java:783)
	at com.alibaba.nacos.config.server.service.repository.extrnal.ExternalStoragePersistServiceImpl.findConfigInfo4Beta(ExternalStoragePersistServiceImpl.java:643)
	at com.alibaba.nacos.config.server.controller.ConfigController.queryBeta(ConfigController.java:439)
	at com.alibaba.nacos.config.server.controller.ConfigController$$FastClassBySpringCGLIB$$dbb89c38.invoke(<generated>)
	at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:749)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:93)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688)
	at com.alibaba.nacos.config.server.controller.ConfigController$$EnhancerBySpringCGLIB$$b55a3463.queryBeta(<generated>)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:189)
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:800)
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1038)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:897)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:96)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:90)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at com.alibaba.nacos.core.auth.AuthFilter.doFilter(AuthFilter.java:60)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at com.alibaba.nacos.config.server.filter.NacosWebFilter.doFilter(NacosWebFilter.java:67)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:209)
	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)
	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357)
	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:117)
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:106)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:668)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:791)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 3001ms.
	at com.zaxxer.hikari.pool.HikariPool.createTimeoutException(HikariPool.java:689)
	at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:196)
	at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:161)
	at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:128)
	at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:151)
	at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:115)
	at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:78)
	... 95 common frames omitted
Caused by: java.sql.SQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:110)
	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:89)
	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:63)
	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:73)
	at com.mysql.cj.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:905)
	at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:830)
	at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:455)
	at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:240)
	at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:199)
	at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138)
	at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:354)
	at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:202)
	at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:473)
	at com.zaxxer.hikari.pool.HikariPool.access$100(HikariPool.java:71)
	at com.zaxxer.hikari.pool.HikariPool$PoolEntryCreator.call(HikariPool.java:719)
	at com.zaxxer.hikari.pool.HikariPool$PoolEntryCreator.call(HikariPool.java:705)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	... 1 common frames omitted
Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
	at sun.reflect.GeneratedConstructorAccessor90.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
	at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
	at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:91)
	at com.mysql.cj.NativeSession.connect(NativeSession.java:152)
	at com.mysql.cj.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:849)
	... 15 common frames omitted
Caused by: java.net.NoRouteToHostException: No route to host: connect
	at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
	at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:606)
	at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:155)
	at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:65)
	... 17 common frames omitted
2020-09-03 08:34:57,699 ERROR CONSOLE

org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 3000ms.
	at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:81)
	at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:612)
	at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:669)
	at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:700)
	at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:712)
	at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:763)
	at org.springframework.jdbc.core.JdbcTemplate.queryForList(JdbcTemplate.java:829)
	at com.alibaba.nacos.config.server.service.repository.extrnal.ExternalStoragePersistServiceImpl.selectTagByConfig(ExternalStoragePersistServiceImpl.java:2047)
	at com.alibaba.nacos.config.server.service.repository.extrnal.ExternalStoragePersistServiceImpl.findConfigAllInfo(ExternalStoragePersistServiceImpl.java:2193)
	at com.alibaba.nacos.config.server.controller.ConfigController.detailConfigInfo(ConfigController.java:222)
	at com.alibaba.nacos.config.server.controller.ConfigController$$FastClassBySpringCGLIB$$dbb89c38.invoke(<generated>)
	at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:749)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:93)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688)
	at com.alibaba.nacos.config.server.controller.ConfigController$$EnhancerBySpringCGLIB$$b55a3463.detailConfigInfo(<generated>)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:189)
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:800)
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1038)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:897)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:96)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:90)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at com.alibaba.nacos.core.auth.AuthFilter.doFilter(AuthFilter.java:60)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at com.alibaba.nacos.config.server.filter.NacosWebFilter.doFilter(NacosWebFilter.java:67)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:209)
	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)
	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357)
	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:117)
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:106)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:668)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:791)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 3000ms.
	at com.zaxxer.hikari.pool.HikariPool.createTimeoutException(HikariPool.java:689)
	at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:196)
	at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:161)
	at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:128)
	at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:151)
	at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:115)
	at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:78)
	... 97 common frames omitted
Caused by: java.sql.SQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:110)
	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:89)
	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:63)
	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:73)
	at com.mysql.cj.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:905)
	at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:830)
	at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:455)
	at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:240)
	at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:199)
	at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138)
	at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:354)
	at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:202)
	at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:473)
	at com.zaxxer.hikari.pool.HikariPool.access$100(HikariPool.java:71)
	at com.zaxxer.hikari.pool.HikariPool$PoolEntryCreator.call(HikariPool.java:719)
	at com.zaxxer.hikari.pool.HikariPool$PoolEntryCreator.call(HikariPool.java:705)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	... 1 common frames omitted
Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
	at sun.reflect.GeneratedConstructorAccessor90.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
	at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
	at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:91)
	at com.mysql.cj.NativeSession.connect(NativeSession.java:152)
	at com.mysql.cj.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:849)
	... 15 common frames omitted
Caused by: java.net.NoRouteToHostException: No route to host: connect
	at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
	at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:606)
	at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:155)
	at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:65)
	... 17 common frames omitted
2020-09-03 08:42:15,707 INFO [capacityManagement] start correct usage

2020-09-03 08:42:15,950 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 08:44:27,413 WARN clearConfigHistory start

2020-09-03 08:52:15,951 INFO [capacityManagement] start correct usage

2020-09-03 08:52:16,196 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 08:54:27,661 WARN clearConfigHistory start

2020-09-03 09:02:16,198 INFO [capacityManagement] start correct usage

2020-09-03 09:02:16,437 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 09:04:27,850 WARN clearConfigHistory start

2020-09-03 09:12:16,438 INFO [capacityManagement] start correct usage

2020-09-03 09:12:16,751 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 09:14:27,986 WARN clearConfigHistory start

2020-09-03 09:22:16,753 INFO [capacityManagement] start correct usage

2020-09-03 09:22:17,005 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 09:24:28,248 WARN clearConfigHistory start

2020-09-03 09:32:17,006 INFO [capacityManagement] start correct usage

2020-09-03 09:32:17,279 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 09:34:28,443 WARN clearConfigHistory start

2020-09-03 09:42:17,279 INFO [capacityManagement] start correct usage

2020-09-03 09:42:17,633 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 09:44:28,716 WARN clearConfigHistory start

2020-09-03 09:52:17,635 INFO [capacityManagement] start correct usage

2020-09-03 09:52:18,336 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 09:54:29,840 WARN clearConfigHistory start

2020-09-03 10:02:18,339 INFO [capacityManagement] start correct usage

2020-09-03 10:02:18,568 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 10:04:30,090 WARN clearConfigHistory start

2020-09-03 10:12:18,569 INFO [capacityManagement] start correct usage

2020-09-03 10:12:18,877 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 10:14:30,289 WARN clearConfigHistory start

2020-09-03 10:22:18,879 INFO [capacityManagement] start correct usage

2020-09-03 10:22:19,129 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 10:24:30,468 WARN clearConfigHistory start

2020-09-03 10:32:19,130 INFO [capacityManagement] start correct usage

2020-09-03 10:32:19,260 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 10:34:30,657 WARN clearConfigHistory start

2020-09-03 10:42:19,262 INFO [capacityManagement] start correct usage

2020-09-03 10:42:19,483 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 10:44:30,849 WARN clearConfigHistory start

2020-09-03 10:52:19,484 INFO [capacityManagement] start correct usage

2020-09-03 10:52:19,704 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 10:54:31,032 WARN clearConfigHistory start

2020-09-03 10:54:42,858 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@44e7492f (Communications link failure

The last packet successfully received from the server was 1,272,341 milliseconds ago.  The last packet sent successfully to the server was 1,272,403 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 10:54:42,858 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@3ede91d3 (Communications link failure

The last packet successfully received from the server was 1,267,842 milliseconds ago.  The last packet sent successfully to the server was 1,267,901 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 10:54:42,858 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@5fa0fc7a (Communications link failure

The last packet successfully received from the server was 27,510 milliseconds ago.  The last packet sent successfully to the server was 27,568 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 10:54:42,859 ERROR clearConfigHistory error : org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 11825ms.

2020-09-03 10:54:43,073 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@63c450ca (Communications link failure

The last packet successfully received from the server was 38,679 milliseconds ago.  The last packet sent successfully to the server was 38,743 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 10:54:43,078 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@5487706b (Communications link failure

The last packet successfully received from the server was 1,265,473 milliseconds ago.  The last packet sent successfully to the server was 1,265,564 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 10:54:43,080 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@1f547a14 (Communications link failure

The last packet successfully received from the server was 1,262,797 milliseconds ago.  The last packet sent successfully to the server was 1,262,862 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 10:54:43,084 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@34ca9f0b (Communications link failure

The last packet successfully received from the server was 1,257,834 milliseconds ago.  The last packet sent successfully to the server was 1,257,900 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 10:54:43,086 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@75c9db58 (Communications link failure

The last packet successfully received from the server was 1,253,798 milliseconds ago.  The last packet sent successfully to the server was 1,253,862 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 10:54:43,088 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@1a22f9a2 (Communications link failure

The last packet successfully received from the server was 1,246,945 milliseconds ago.  The last packet sent successfully to the server was 1,247,007 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 10:54:43,090 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@269ab428 (Communications link failure

The last packet successfully received from the server was 1,240,286 milliseconds ago.  The last packet sent successfully to the server was 1,240,361 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 10:54:43,093 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@46c85537 (Communications link failure

The last packet successfully received from the server was 1,235,154 milliseconds ago.  The last packet sent successfully to the server was 1,235,214 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 10:54:43,096 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@7de045ad (Communications link failure

The last packet successfully received from the server was 1,231,549 milliseconds ago.  The last packet sent successfully to the server was 1,231,609 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 10:54:43,098 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@70825c5a (Communications link failure

The last packet successfully received from the server was 1,229,040 milliseconds ago.  The last packet sent successfully to the server was 1,229,116 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 10:54:43,101 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@3ca9d96 (Communications link failure

The last packet successfully received from the server was 1,228,457 milliseconds ago.  The last packet sent successfully to the server was 1,228,516 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 10:54:43,102 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@72f1135 (Communications link failure

The last packet successfully received from the server was 1,225,870 milliseconds ago.  The last packet sent successfully to the server was 1,225,935 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 10:54:43,102 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@781de150 (Communications link failure

The last packet successfully received from the server was 1,224,207 milliseconds ago.  The last packet sent successfully to the server was 1,224,263 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 10:54:43,104 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@4d6e0a7d (Communications link failure

The last packet successfully received from the server was 1,220,542 milliseconds ago.  The last packet sent successfully to the server was 1,220,609 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 10:54:43,104 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@32371c5c (Communications link failure

The last packet successfully received from the server was 1,217,503 milliseconds ago.  The last packet sent successfully to the server was 1,217,565 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 10:54:43,105 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@25b77c2b (Communications link failure

The last packet successfully received from the server was 1,203,581 milliseconds ago.  The last packet sent successfully to the server was 1,203,636 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 10:54:43,105 WARN HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@475e5932 (Communications link failure

The last packet successfully received from the server was 1,189,947 milliseconds ago.  The last packet sent successfully to the server was 1,190,013 milliseconds ago.). Possibly consider using a shorter maxLifetime value.

2020-09-03 11:02:19,707 INFO [capacityManagement] start correct usage

2020-09-03 11:02:20,768 INFO [capacityManagement] end correct usage, cost: 1s

2020-09-03 11:04:42,861 WARN clearConfigHistory start

2020-09-03 11:12:20,770 INFO [capacityManagement] start correct usage

2020-09-03 11:12:21,033 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 11:14:43,020 WARN clearConfigHistory start

2020-09-03 11:22:21,034 INFO [capacityManagement] start correct usage

2020-09-03 11:22:21,257 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 11:24:43,175 WARN clearConfigHistory start

2020-09-03 11:32:21,258 INFO [capacityManagement] start correct usage

2020-09-03 11:32:21,491 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 11:34:43,725 WARN clearConfigHistory start

2020-09-03 11:42:21,492 INFO [capacityManagement] start correct usage

2020-09-03 11:42:21,712 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 11:44:43,948 WARN clearConfigHistory start

2020-09-03 11:52:21,713 INFO [capacityManagement] start correct usage

2020-09-03 11:52:22,023 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 11:54:44,173 WARN clearConfigHistory start

2020-09-03 12:02:22,024 INFO [capacityManagement] start correct usage

2020-09-03 12:02:22,244 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 12:04:44,335 WARN clearConfigHistory start

2020-09-03 12:12:22,247 INFO [capacityManagement] start correct usage

2020-09-03 12:12:22,400 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 12:14:44,504 WARN clearConfigHistory start

2020-09-03 12:22:22,402 INFO [capacityManagement] start correct usage

2020-09-03 12:22:22,617 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 12:24:44,616 WARN clearConfigHistory start

2020-09-03 12:32:22,619 INFO [capacityManagement] start correct usage

2020-09-03 12:32:22,830 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 12:34:44,810 WARN clearConfigHistory start

2020-09-03 12:42:22,831 INFO [capacityManagement] start correct usage

2020-09-03 12:42:23,042 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 12:43:26,970 WARN HikariPool-1 - Connection com.mysql.cj.jdbc.ConnectionImpl@1de060ff marked as broken because of SQLSTATE(08S01), ErrorCode(0)

com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet successfully received from the server was 3,001 milliseconds ago.  The last packet sent successfully to the server was 3,001 milliseconds ago.
	at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
	at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
	at com.mysql.cj.jdbc.ConnectionImpl.setSessionMaxRows(ConnectionImpl.java:2448)
	at com.mysql.cj.jdbc.ClientPreparedStatement.executeQuery(ClientPreparedStatement.java:1003)
	at com.zaxxer.hikari.pool.ProxyPreparedStatement.executeQuery(ProxyPreparedStatement.java:52)
	at com.zaxxer.hikari.pool.HikariProxyPreparedStatement.executeQuery(HikariProxyPreparedStatement.java)
	at org.springframework.jdbc.core.JdbcTemplate$1.doInPreparedStatement(JdbcTemplate.java:678)
	at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:617)
	at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:669)
	at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:700)
	at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:712)
	at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:763)
	at com.alibaba.nacos.config.server.service.repository.extrnal.ExternalStoragePaginationHelperImpl.fetchPage(ExternalStoragePaginationHelperImpl.java:97)
	at com.alibaba.nacos.config.server.service.repository.extrnal.ExternalStoragePaginationHelperImpl.fetchPage(ExternalStoragePaginationHelperImpl.java:56)
	at com.alibaba.nacos.config.server.auth.ExternalRolePersistServiceImpl.getRolesByUserName(ExternalRolePersistServiceImpl.java:98)
	at com.alibaba.nacos.console.security.nacos.roles.NacosRoleServiceImpl.reload(NacosRoleServiceImpl.java:77)
	at sun.reflect.GeneratedMethodAccessor132.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:84)
	at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet successfully received from the server was 3,001 milliseconds ago.  The last packet sent successfully to the server was 3,001 milliseconds ago.
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
	at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
	at com.mysql.cj.protocol.a.NativeProtocol.readMessage(NativeProtocol.java:562)
	at com.mysql.cj.protocol.a.NativeProtocol.checkErrorMessage(NativeProtocol.java:732)
	at com.mysql.cj.protocol.a.NativeProtocol.sendCommand(NativeProtocol.java:671)
	at com.mysql.cj.protocol.a.NativeProtocol.sendQueryPacket(NativeProtocol.java:986)
	at com.mysql.cj.protocol.a.NativeProtocol.sendQueryString(NativeProtocol.java:921)
	at com.mysql.cj.NativeSession.execSQL(NativeSession.java:1165)
	at com.mysql.cj.jdbc.ConnectionImpl.setSessionMaxRows(ConnectionImpl.java:2444)
	... 25 common frames omitted
Caused by: java.net.SocketTimeoutException: Read timed out
	at java.net.SocketInputStream.socketRead0(Native Method)
	at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
	at java.net.SocketInputStream.read(SocketInputStream.java:171)
	at java.net.SocketInputStream.read(SocketInputStream.java:141)
	at com.mysql.cj.protocol.ReadAheadInputStream.fill(ReadAheadInputStream.java:107)
	at com.mysql.cj.protocol.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:150)
	at com.mysql.cj.protocol.ReadAheadInputStream.read(ReadAheadInputStream.java:180)
	at java.io.FilterInputStream.read(FilterInputStream.java:133)
	at com.mysql.cj.protocol.FullReadInputStream.readFully(FullReadInputStream.java:64)
	at com.mysql.cj.protocol.a.SimplePacketReader.readHeader(SimplePacketReader.java:63)
	at com.mysql.cj.protocol.a.SimplePacketReader.readHeader(SimplePacketReader.java:45)
	at com.mysql.cj.protocol.a.TimeTrackingPacketReader.readHeader(TimeTrackingPacketReader.java:52)
	at com.mysql.cj.protocol.a.TimeTrackingPacketReader.readHeader(TimeTrackingPacketReader.java:41)
	at com.mysql.cj.protocol.a.MultiPacketReader.readHeader(MultiPacketReader.java:54)
	at com.mysql.cj.protocol.a.MultiPacketReader.readHeader(MultiPacketReader.java:44)
	at com.mysql.cj.protocol.a.NativeProtocol.readMessage(NativeProtocol.java:556)
	... 31 common frames omitted
2020-09-03 12:44:31,120 WARN HikariPool-1 - Connection com.mysql.cj.jdbc.ConnectionImpl@3a8412c6 marked as broken because of SQLSTATE(08S01), ErrorCode(0)

com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet successfully received from the server was 3,000 milliseconds ago.  The last packet sent successfully to the server was 3,000 milliseconds ago.
	at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
	at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
	at com.mysql.cj.jdbc.ConnectionImpl.setSessionMaxRows(ConnectionImpl.java:2448)
	at com.mysql.cj.jdbc.ClientPreparedStatement.executeQuery(ClientPreparedStatement.java:1003)
	at com.zaxxer.hikari.pool.ProxyPreparedStatement.executeQuery(ProxyPreparedStatement.java:52)
	at com.zaxxer.hikari.pool.HikariProxyPreparedStatement.executeQuery(HikariProxyPreparedStatement.java)
	at org.springframework.jdbc.core.JdbcTemplate$1.doInPreparedStatement(JdbcTemplate.java:678)
	at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:617)
	at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:669)
	at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:700)
	at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:712)
	at org.springframework.jdbc.core.JdbcTemplate.queryForObject(JdbcTemplate.java:783)
	at org.springframework.jdbc.core.JdbcTemplate.queryForObject(JdbcTemplate.java:804)
	at com.alibaba.nacos.config.server.service.repository.extrnal.ExternalStoragePaginationHelperImpl.fetchPage(ExternalStoragePaginationHelperImpl.java:66)
	at com.alibaba.nacos.config.server.service.repository.extrnal.ExternalStoragePaginationHelperImpl.fetchPage(ExternalStoragePaginationHelperImpl.java:56)
	at com.alibaba.nacos.config.server.auth.ExternalPermissionPersistServiceImpl.getPermissions(ExternalPermissionPersistServiceImpl.java:69)
	at com.alibaba.nacos.console.security.nacos.roles.NacosRoleServiceImpl.reload(NacosRoleServiceImpl.java:94)
	at sun.reflect.GeneratedMethodAccessor132.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:84)
	at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet successfully received from the server was 3,000 milliseconds ago.  The last packet sent successfully to the server was 3,000 milliseconds ago.
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
	at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
	at com.mysql.cj.protocol.a.NativeProtocol.readMessage(NativeProtocol.java:562)
	at com.mysql.cj.protocol.a.NativeProtocol.checkErrorMessage(NativeProtocol.java:732)
	at com.mysql.cj.protocol.a.NativeProtocol.sendCommand(NativeProtocol.java:671)
	at com.mysql.cj.protocol.a.NativeProtocol.sendQueryPacket(NativeProtocol.java:986)
	at com.mysql.cj.protocol.a.NativeProtocol.sendQueryString(NativeProtocol.java:921)
	at com.mysql.cj.NativeSession.execSQL(NativeSession.java:1165)
	at com.mysql.cj.jdbc.ConnectionImpl.setSessionMaxRows(ConnectionImpl.java:2444)
	... 26 common frames omitted
Caused by: java.net.SocketTimeoutException: Read timed out
	at java.net.SocketInputStream.socketRead0(Native Method)
	at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
	at java.net.SocketInputStream.read(SocketInputStream.java:171)
	at java.net.SocketInputStream.read(SocketInputStream.java:141)
	at com.mysql.cj.protocol.ReadAheadInputStream.fill(ReadAheadInputStream.java:107)
	at com.mysql.cj.protocol.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:150)
	at com.mysql.cj.protocol.ReadAheadInputStream.read(ReadAheadInputStream.java:180)
	at java.io.FilterInputStream.read(FilterInputStream.java:133)
	at com.mysql.cj.protocol.FullReadInputStream.readFully(FullReadInputStream.java:64)
	at com.mysql.cj.protocol.a.SimplePacketReader.readHeader(SimplePacketReader.java:63)
	at com.mysql.cj.protocol.a.SimplePacketReader.readHeader(SimplePacketReader.java:45)
	at com.mysql.cj.protocol.a.TimeTrackingPacketReader.readHeader(TimeTrackingPacketReader.java:52)
	at com.mysql.cj.protocol.a.TimeTrackingPacketReader.readHeader(TimeTrackingPacketReader.java:41)
	at com.mysql.cj.protocol.a.MultiPacketReader.readHeader(MultiPacketReader.java:54)
	at com.mysql.cj.protocol.a.MultiPacketReader.readHeader(MultiPacketReader.java:44)
	at com.mysql.cj.protocol.a.NativeProtocol.readMessage(NativeProtocol.java:556)
	... 32 common frames omitted
2020-09-03 12:44:44,971 WARN clearConfigHistory start

2020-09-03 12:52:23,043 INFO [capacityManagement] start correct usage

2020-09-03 12:52:23,255 INFO [capacityManagement] end correct usage, cost: 0s

2020-09-03 12:54:48,417 WARN clearConfigHistory start

2020-09-03 13:02:23,257 INFO [capacityManagement] start correct usage

2020-09-03 13:02:23,474 INFO [capacityManagement] end correct usage, cost: 0s

