Error Sql MariaDB 10.3 and Seafile Server Pro 6.3.2

hi
I looked in error log file mariadb in /var/log/mysql/error.log and there is a lot of error that comes up regularly.
any help would be appreciated. thank you
MariaDB 10.3
Server Pro 6.3.2
Debian 9

2018-08-04  0:06:34 11330 [Warning] Aborted connection 11330 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  0:06:35 11333 [Warning] Aborted connection 11333 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  0:06:35 11332 [Warning] Aborted connection 11332 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  0:36:35 11352 [Warning] Aborted connection 11352 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  0:36:35 11353 [Warning] Aborted connection 11353 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  1:06:34 11379 [Warning] Aborted connection 11379 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  1:06:35 11380 [Warning] Aborted connection 11380 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  1:06:35 11381 [Warning] Aborted connection 11381 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  1:36:35 11401 [Warning] Aborted connection 11401 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  1:36:35 11400 [Warning] Aborted connection 11400 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  2:06:34 11423 [Warning] Aborted connection 11423 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  2:06:35 11424 [Warning] Aborted connection 11424 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  2:06:35 11425 [Warning] Aborted connection 11425 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  2:36:35 11444 [Warning] Aborted connection 11444 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  2:36:35 11445 [Warning] Aborted connection 11445 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  3:06:34 11468 [Warning] Aborted connection 11468 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  3:06:36 11469 [Warning] Aborted connection 11469 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  3:06:36 11470 [Warning] Aborted connection 11470 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  3:36:36 11489 [Warning] Aborted connection 11489 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  3:36:36 11490 [Warning] Aborted connection 11490 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  4:06:34 11512 [Warning] Aborted connection 11512 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  4:06:36 11513 [Warning] Aborted connection 11513 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  4:06:36 11514 [Warning] Aborted connection 11514 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  4:36:36 11534 [Warning] Aborted connection 11534 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  4:36:36 11535 [Warning] Aborted connection 11535 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  5:06:34 11557 [Warning] Aborted connection 11557 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  5:06:36 11559 [Warning] Aborted connection 11559 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  5:06:36 11558 [Warning] Aborted connection 11558 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  5:36:36 11578 [Warning] Aborted connection 11578 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  5:36:36 11579 [Warning] Aborted connection 11579 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  5:52:20 9627 [Warning] Aborted connection 9627 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got timeout reading communication packets)
2018-08-04  6:06:34 11601 [Warning] Aborted connection 11601 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  6:06:36 11603 [Warning] Aborted connection 11603 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  6:06:36 11602 [Warning] Aborted connection 11602 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  6:10:14 9664 [Warning] Aborted connection 9664 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got timeout reading communication packets)
2018-08-04  6:10:22 9661 [Warning] Aborted connection 9661 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got timeout reading communication packets)
2018-08-04  6:13:03 9666 [Warning] Aborted connection 9666 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got timeout reading communication packets)
2018-08-04  6:16:50 10387 [Warning] Aborted connection 10387 to db: 'ccnet-db' user: 'seafile' host: 'localhost' (Got timeout reading communication packets)
2018-08-04  6:18:05 10871 [Warning] Aborted connection 10871 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got timeout reading communication packets)
2018-08-04  6:18:29 10596 [Warning] Aborted connection 10596 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got timeout reading communication packets)
2018-08-04  6:18:32 9168 [Warning] Aborted connection 9168 to db: 'ccnet-db' user: 'seafile' host: 'localhost' (Got timeout reading communication packets)
2018-08-04  6:18:33 9738 [Warning] Aborted connection 9738 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got timeout reading communication packets)
2018-08-04  6:18:33 9234 [Warning] Aborted connection 9234 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got timeout reading communication packets)
2018-08-04  6:36:36 11622 [Warning] Aborted connection 11622 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  6:36:36 11623 [Warning] Aborted connection 11623 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  7:06:35 11645 [Warning] Aborted connection 11645 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  7:06:36 11647 [Warning] Aborted connection 11647 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  7:06:36 11646 [Warning] Aborted connection 11646 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  7:36:36 11667 [Warning] Aborted connection 11667 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  7:36:36 11666 [Warning] Aborted connection 11666 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  7:46:47 11317 [Warning] Aborted connection 11317 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got timeout reading communication packets)
2018-08-04  8:06:35 11689 [Warning] Aborted connection 11689 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  8:06:36 11690 [Warning] Aborted connection 11690 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  8:06:36 11691 [Warning] Aborted connection 11691 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  8:36:36 11710 [Warning] Aborted connection 11710 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  8:36:36 11711 [Warning] Aborted connection 11711 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  9:06:35 11733 [Warning] Aborted connection 11733 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  9:06:36 11734 [Warning] Aborted connection 11734 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  9:06:36 11735 [Warning] Aborted connection 11735 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  9:36:36 11755 [Warning] Aborted connection 11755 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04  9:36:36 11754 [Warning] Aborted connection 11754 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04 10:06:35 11778 [Warning] Aborted connection 11778 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04 10:06:37 11779 [Warning] Aborted connection 11779 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04 10:06:37 11780 [Warning] Aborted connection 11780 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04 10:36:37 11806 [Warning] Aborted connection 11806 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04 10:36:37 11805 [Warning] Aborted connection 11805 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04 11:06:35 11893 [Warning] Aborted connection 11893 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04 11:06:37 11894 [Warning] Aborted connection 11894 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04 11:06:37 11895 [Warning] Aborted connection 11895 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04 11:36:37 11945 [Warning] Aborted connection 11945 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04 11:36:37 11944 [Warning] Aborted connection 11944 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04 12:06:35 11993 [Warning] Aborted connection 11993 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04 12:06:37 11995 [Warning] Aborted connection 11995 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04 12:06:37 11994 [Warning] Aborted connection 11994 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04 12:36:37 12041 [Warning] Aborted connection 12041 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04 12:36:37 12042 [Warning] Aborted connection 12042 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04 13:06:35 12089 [Warning] Aborted connection 12089 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04 13:06:37 12091 [Warning] Aborted connection 12091 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04 13:06:37 12090 [Warning] Aborted connection 12090 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04 13:36:37 12138 [Warning] Aborted connection 12138 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-04 13:36:37 12137 [Warning] Aborted connection 12137 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)

Did you try to run seaf-fsck.sh ?

seaf-fsck.sh did not solve the problem . I noticed that the error has a link with the file indexing setting. indexing works well yet

[INDEX FILES]
enabled = true

## The interval the search index is updated. Can be s(seconds), m(minutes), h(hours), d(days)
interval = 60m

2018-08-05  0:15:03 196 [Warning] Aborted connection 196 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  0:15:03 193 [Warning] Aborted connection 193 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  0:15:03 194 [Warning] Aborted connection 194 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  0:15:03 195 [Warning] Aborted connection 195 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  0:15:03 198 [Warning] Aborted connection 198 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  0:15:03 197 [Warning] Aborted connection 197 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  0:15:28 218 [Warning] Aborted connection 218 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  0:15:28 219 [Warning] Aborted connection 219 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  0:15:28 220 [Warning] Aborted connection 220 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  0:45:27 241 [Warning] Aborted connection 241 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  0:45:27 240 [Warning] Aborted connection 240 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  1:15:27 267 [Warning] Aborted connection 267 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  1:15:27 269 [Warning] Aborted connection 269 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  1:15:27 268 [Warning] Aborted connection 268 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  1:45:27 288 [Warning] Aborted connection 288 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  1:45:27 289 [Warning] Aborted connection 289 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  2:15:27 342 [Warning] Aborted connection 342 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  2:15:27 341 [Warning] Aborted connection 341 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  2:15:27 343 [Warning] Aborted connection 343 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  2:45:27 393 [Warning] Aborted connection 393 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  2:45:27 394 [Warning] Aborted connection 394 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  3:15:27 443 [Warning] Aborted connection 443 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  3:15:27 442 [Warning] Aborted connection 442 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  3:15:27 444 [Warning] Aborted connection 444 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  3:45:27 489 [Warning] Aborted connection 489 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05  3:45:27 488 [Warning] Aborted connection 488 to db: 'seahub-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)

[INDEX FILES]
enabled = true

## The interval the search index is updated. Can be s(seconds), m(minutes), h(hours), d(days)
interval = 2m

2018-08-05 10:18:58 1153 [Warning] Aborted connection 1153 to db: 'ccnet-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05 10:21:03 1172 [Warning] Aborted connection 1172 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05 10:23:03 1176 [Warning] Aborted connection 1176 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05 10:25:03 1177 [Warning] Aborted connection 1177 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05 10:27:04 1185 [Warning] Aborted connection 1185 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05 10:29:04 1186 [Warning] Aborted connection 1186 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05 10:31:04 1187 [Warning] Aborted connection 1187 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05 10:33:04 1194 [Warning] Aborted connection 1194 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)
2018-08-05 10:35:04 1197 [Warning] Aborted connection 1197 to db: 'seafile-db' user: 'seafile' host: 'localhost' (Got an error reading communication packets)

the error comes at the time of indexation

This is not an error. Seafile just does not close the MySQL Connection correctly, so MySQL will close it after it reached an timeout. You can ignore it.

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