Datum a čas: 2022-10-28 01:17 CEST Očekavaná délka: 180 minut Oznámení se týká serverů: node1.stg Typ výpadku: vps_restart Důvod: Debugovani problemu se starsi mysql Výpadek řeší: Pavel Šnajdr
ENGLISH: Date and time: 2022-10-28 01:17 CEST Expected duration: 180 minutes Affected systems: node1.stg Outage type: vps_restart Reason: Debugging older mysql issues Handled by: Pavel Šnajdr
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Popis: Další restarty
Hledáme regresi, která způsobuje pád starších mysqld, zatím bez úspěchu. Neumíme to reprodukovat lokálně, takže možná budeme node1.stg restartovat vícekrát.
Nahlásil: Jakub Skokan
ENGLISH:
Summary: More reboots for debugging
We're trying to find a regression which causes older mysqld to crash, so far without any luck. We cannot reproduce locally, so we might be rebooting node1.stg repeatedly.
Reported by: Jakub Skokan
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Stav: -> closed
Popis: Podařilo se
Po dvou dnech zkoušení různých kombinací kernelu/ZFS jsme přišli na to, že změna, která způsobuje pády mysqld na Ubuntu 18.04 je jednoduše navýšení sysctl fs.nr_open. Více info viz
https://github.com/vpsfreecz/vpsadminos/commit/abf1322382bc3c37bc920326031c6...
https://im.vpsfree.cz/archive/irc.libera.chat/#vpsfree/2022/10/28.html#l49
Nahlásil: Jakub Skokan
ENGLISH: State: -> closed
Summary: Success
After almost two days of trying different kernel/ZFS combinations, we found out that the change which caused mysqld on Ubuntu 18.04 to crash was simply increased fs.nr_open sysctl. For more information, see
https://github.com/vpsfreecz/vpsadminos/commit/abf1322382bc3c37bc920326031c6...
https://im.vpsfree.cz/archive/irc.libera.chat/#vpsfree/2022/10/28.html#l49
Reported by: Jakub Skokan
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