[vpsFree: outage-list] Planovany vypadek / Planned outage - node1.prg, node2.prg, node3.prg, node6.prg, node8.prg, node9.prg, backuper.prg, nasbox.prg, router1.prg, router2.prg, node1.brq, node2.brq, node3.brq, node4.brq, router1.brq, router2.brq - 2013-07-10 01:00
Pavel Snajdr
snajpa at snajpa.net
Wed Jul 10 04:29:51 CEST 2013
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Ahojte,
report z outage:
Tohle byl vubec nejstresovejsi planovany vypadek *EVER*, topnul i to,
jak rok zpatky umrelo tehdy jeste towerovemu node5 diskove pole.
Navzdory tomu, ze jsem si upgrade na SL6.4 a novy OpenVZ kernel
otestoval v testovacim prostredi, kde to sebehlo, na produkcnich
nodech to proste za boha nebezelo - konkretne node2, node3 a node8.
Random nenabihaly VPS, pripadne se boot seknul uz na startu udevu,
kernel hlasil "hung tasks" (coz vetsinou znaci pruser s diskovym
subsystemem)...
Zabil jsem asi nejstresovejsi 3 hodiny zivota, abych zjistil, ze kdyz
necham ty masiny minutu-dve odstat uplne vypnute (tzn. ne reboot), tak
to najednou nabehne... zrejme ty 3 stroje spojovalo to, ze mely
nejakou uzasnou verzi kernelu, ktera pri rebootu nechala tu masinu v
jakemsi nevyresetovanem stavu a pak to delalo psi kusy... Takze
darujhovno.cz budto kernelovym vyvojarum, ale spis to vidim na prasaky
ze Supermicro/AMI za dopraseny UEFI/BIOS, ktery neporadne resetuje
hardware.
Kazdopadne, vsechno nakonec *DOBRE* dopadlo.
Jestli vam nekomu VPS nenajela, je mozne, ze je to jeste artefakt z ne
uplne davne doby vpsAdminu, kdy spatne nastavoval on_boot flag VPSkam
- -> staci jit a pustit ji z vpsAdmin UI.
S pozdravem
Pavel Snajdr
+421 948 816 186 | +420 720 107 791 | 110-010-956
CTO of Relbit | Predseda vpsFree.cz, o.s. | RHCE
http://relbit.com | http://vpsfree.cz | https://www.redhat.com
On 07/08/2013 12:01 PM, podpora at vpsFree.cz wrote:
> Čas a datum výpadku: 2013-07-10 01:00 Očekavaná délka: 60 minut
> Výpadek se týká serverů: node1.prg, node2.prg, node3.prg,
> node6.prg, node8.prg, node9.prg, backuper.prg, nasbox.prg,
> router1.prg, router2.prg, node1.brq, node2.brq, node3.brq,
> node4.brq, router1.brq, router2.brq Důvod: Update vsech systemu
> Detailnější popis: Update na Scientific Linux 6.4 a nejnovejsi
> OpenVZ kernel. Výpadek vykonává: Pavel Snajdr, Jakub Skokan
>
> ENGLISH: Date and time: 2013-07-10 01:00 Estimated duration: 60
> minutes What's affected: node1.prg, node2.prg, node3.prg,
> node6.prg, node8.prg, node9.prg, backuper.prg, nasbox.prg,
> router1.prg, router2.prg, node1.brq, node2.brq, node3.brq,
> node4.brq, router1.brq, router2.brq Reason: Systems update
> Performed by: Pavel Snajdr, Jakub Skokan
>
>
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> _______________________________________________ Outage-list mailing
> list Outage-list at lists.vpsfree.cz
> http://lists.vpsfree.cz/listinfo/outage-list
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