Try out some of the diagnostic steps here. Is it always the vlans_fdb table? You can probably turn off polling that data for now so polling keeps working.
https://dev.mysql.com/doc/refman/5.6/en/innodb-deadlocks-handling.html
* At any time, issue SHOW ENGINE INNODB STATUShttps://dev.mysql.com/doc/refman/5.6/en/show-engine.html to determine the cause of the most recent deadlock. That can help you to tune your application to avoid deadlocks.
* If frequent deadlock warnings cause concern, collect more extensive debugging information by enabling the innodb_print_all_deadlockshttps://dev.mysql.com/doc/refman/5.6/en/innodb-parameters.html#sysvar_innodb_print_all_deadlocks variable. Information about each deadlock, not just the latest one, is recorded in the MySQL error loghttps://dev.mysql.com/doc/refman/5.6/en/glossary.html#glos_error_log. Disable this option when you are finished debugging.
________________________________ From: Thomas Stather via observium observium@lists.observium.org Sent: Friday, October 28, 2022 12:53:01 AM To: observium@observium.org Cc: Adam Armstrong; Thomas Stather Subject: [Observium] Re: Lots of errors "Deadlock found when trying to get
Hi
We have
207 devices (network, servers, ups etc.)
6709 ports
2841 sensors
The problem is still not fixed.
Best,
Thomas
Am 26.07.2022 um 23:49 schrieb Adam Armstrong via observium:
You might want to provide information on how big the installation is and what sort of devices are involved.
But I'd try upgrading to a newer distribution. Newer MySQL/MariaDB may behave better.
Adam.
-----Original Message----- From: observium observium-bounces@observium.org On Behalf Of Thomas Stather via observium Sent: 26 July 2022 08:42 To: 'Observium' observium@observium.org Cc: Thomas Stather tstather@mr.mpg.de Subject: [Observium] Lots of errors "Deadlock found when trying to get lock; try restarting transaction"
Hi
We are running Observium Professional r12071
OS: Ubuntu 18.04 LTS
MySQL: 5.7.38-0ubuntu0.18.04.1
In our /opt/observium/logs/db log, we are seeing a lot of these messages (approx. every minute).
[2022/07/26 09:23:54 +0200] poller.php(3889): Failed dbQuery (#1213 - Deadlock found when trying to get lock; try restarting transaction), Query: INSERT INTO `vlans_fdb` (`fdb_id`,`port_id`,`fdb_status`,`fdb_port`,`fdb_last_change`,`deleted`) VALUES ('2022403206','19917','learned','1','1658820234','0'),('2022403209','19917','learned','1','1658820234','0'),('2022374672','19917','learned','1','1658820234','0'),('2022406153','19917','learned','1','1658820234','0'),('2022438526','19917','learned','1','1658820234','0'),('2022403210','19917','learned','1','1658820234','0'),('2022403211','19917','learned','1','1658820234','0'),('2022424430','19917','learned','1','1658820234','0'),('2022389346','19917','learned','1','1658820234','0'),('2022417515','19917','learned','1','1658820234','0'),('2022403215','19917','learned','1','1658820234','0'),('2022424431','19917','learned','1','1658820234','0'),('2022374680','19917','learned','1','1658820234','0'),('2022428820','19917','learned','1','1658820234','0'),('2022417516','19917','learned','1','1658820234','0'),('2022626809','19917','learned','1','1658820234','0'),('2022403218','19917','learned','1','1658820234','0'),('2022013327','19917','learned','1','1658820234','0'),('2022440623','19917','learned','1','1658820234','0'),('2023195038','19917','learned','1','1658820234','0'),('2022417520','19917','learned','1','1658820234','0'),('2022417521','19917','learned','1','1658820234','0'),('2022417522','19917','learned','1','1658820234','0'),('2022417525','19917','learned','1','1658820234','0'),('2022389354','19917','learned','1','1658820234','0'),('2022634466','19917','learned','1','1658820234','0'),('2022389355','19917','learned','1','1658820234','0'),('2022374686','19917','learned','1','1658820234','0'),('2022318658','19917','learned','1','1658820234','0'),('2022403222','19917','learned','1','1658820234','0'),('2022389360','19917','learned','1','1658820234','0'),('2022334581','19917','learned','1','1658820234','0'),('2022318665','19917','learned','1','1658820234','0'),('2022535557','19917','learned','1','1658820234','0'),('2022633094','19917','learned','1','1658820234','0'),('2022403228','19917','learned','1','1658820234','0'),('2022507536','19917','learned','1','1658820234','0'),('2023391470','19917','learned','1','1658820234','0'),('2022440625','19917','learned','1','1658820234','0'),('2022442062','19917','learned','1','1658820234','0'),('2022318672','19917','learned','1','1658820234','0'),('2022352825','19917','learned','1','1658820234','0'),('2022448395','19917','learned','1','1658820234','0'),('1781846826','19917','learned','1','1658820234','0'),('2022440626','19917','learned','1','1658820234','0'),('2021364663','19917','learned','1','1658820234','0'),('2022621595','19917','learned','1','1658820234','0'),('2021996873','19917','learned','1','1658820234','0'),('1930092608','19917','learned','1','1658820234','0'),('2022403237','19917','learned','1','1658820234','0'),('2022389374','19917','learned','1','1658820234','0'),('2021923896','19917','learned','1','1658820234','0'),('2022406174','19917','learned','1','1658820234','0'),('2022281507','19917','learned','1','1658820234','0'),('2022370404','19917','learned','1','1658820234','0'),('2022132020','19917','learned','1','1658820234','0'),('2022370406','19917','learned','1','1658820234','0'),('2022403242','19917','learned','1','1658820234','0'),('2022442064','19917','learned','1','1658820234','0'),('2022160398','19917','learned','1','1658820234','0'),('2021963914','19917','learned','1','1658820234','0'),('2022370416','19917','learned','1','1658820234','0'),('2022370417','19917','learned','1','1658820234','0'),('2022428831','19917','learned','1','1658820234','0'),('2022352835','19917','learned','1','1658820234','0'),('2022417541','19917','learned','1','1658820234','0'),('2022403248','19917','learned','1','1658820234','0'),('2022406184','19917','learned','1','1658820234','0'),('2022403251','19917','learned','1','1658820234','0'),('2022403252','19917','learned','1','1658820234','0'),('2022248989','19917','learned','1','1658820234','0'),('2022220229','19917','learned','1','1658820234','0'),('2022438537','19917','learned','1','1658820234','0'),('2022417547','19917','learned','1','1658820234','0'),('2022403257','19917','learned','1','1658820234','0'),('2022403260','19917','learned','1','1658820234','0'),('2022403261','19917','learned','1','1658820234','0'),('2022403262','19917','learned','1','1658820234','0'),('2022403263','19917','learned','1','1658820234','0'),('2022403265','19917','learned','1','1658820234','0'),('2022374716','19917','learned','1','1658820234','0'),('2022344523','19917','learned','1','1658820234','0'),('2022403276','19917','learned','1','1658820234','0'),('2024336889','19917','learned','1','1658820234','0'),('2022036744','19917','learned','1','1658820234','0'),('2022352850','19917','learned','1','1658820234','0'),('2022463833','19917','learned','1','1658820234','0'),('2022389400','19917','learned','1','1658820234','0'),('2022535560','19917','learned','1','1658820234','0'),('2022406201','19917','learned','1','1658820234','0'),('2022403291','19917','learned','1','1658820234','0'),('2022374736','19917','learned','1','1658820234','0'),('2022295503','19917','learned',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ON DUPLICATE KEY UPDATE `fdb_id`=VALUES(`fdb_id`),`port_id`=VALUES(`port_id`),`fdb_status`=VALUES(`fdb_status`),`fdb_port`=VALUES(`fdb_port`),`fdb_last_change`=VALUES(`fdb_last_change`),`deleted`=VALUES(`deleted`)
Does somebody have a clue how this can be fixed?
Best,
Thomas
-- Thomas Stather IT Services
VCP4, VCP6-DCV, VCP6.5-DCV
Tel: +49 6221 486 628 Fax: +49 6221 486 561
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-- Thomas Stather IT Services
VCP4, VCP6-DCV, VCP6.5-DCV
Room: U1.509 Tel: +49 6221 486 628 Fax: +49 6221 486 561
Bevor Sie diese Mail ausdrucken, prüfen Sie bitte ob dies wirklich nötig ist. Umweltschutz geht uns alle an!
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