Datum a čas: 2022-11-15 01:05 CET Očekavaná délka: 50 minut Oznámení se týká serverů: node24.prg Typ výpadku: vps_restart Důvod: Reboot do 5.10.154 Výpadek řeší: Pavel Šnajdr
Odstranujeme ze zamku optimistic spinning fronty, ktere zpusobovaly, ze se hromady procesu uspavaly pri cekani na zamkach, pri cem se vyrobily dlouhe fronty procesu k probouzeni, coz nakonec pri zatezovych spickach zabijelo uzitecnou zatez
ENGLISH: Date and time: 2022-11-15 01:05 CET Expected duration: 50 minutes Affected systems: node24.prg Outage type: vps_restart Reason: Reboot to 5.10.154 Handled by: Pavel Šnajdr
Removing optimistic spinning queue locking, which was causing swaths processes to sleep on locks, creating long wakeup queues, which in the end killed useful workload during the load spikes.
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