Gehel created this task.
Gehel added a project: Wikidata-Query-Service.
Restricted Application added a subscriber: Aklapper.
Restricted Application added a project: Wikidata.
TASK DESCRIPTION
As an administrator of WDQS, I want reboots to be fast so that I can run
cluster wide operations in a reasonable amount of time.
While doing a full cluster restart of WDQS for kernel upgrade, multiple
servers took at least 30 minutes to reboot. Looking at console, it looks like
the shutdown is waiting to unmount disks. Stopping blazegaph (both wdqs and
categories) before the reboot does not have a significant impact on shutdown
time.
Maybe related logs (wdqs1007:/var/log/syslog):
Feb 9 16:21:50 wdqs1007 blkdeactivate[16486]: [SKIP]: unmount of
vg0-swap (dm-1) mounted on [SWAP]
Feb 9 16:21:51 wdqs1007 blkdeactivate[16486]: [UMOUNT]: unmounting
vg0-srv (dm-2) mounted on /srv... skipping
Feb 9 16:21:51 wdqs1007 blkdeactivate[16486]: [SKIP]: unmount of
vg0-root (dm-0) mounted on /
AC:
- wdqs servers can be rebooted in < 5 minutes
TASK DETAIL
https://phabricator.wikimedia.org/T274270
EMAIL PREFERENCES
https://phabricator.wikimedia.org/settings/panel/emailpreferences/
To: Gehel
Cc: Gehel, Aklapper, MPhamWMF, CBogen, Akuckartz, Nandana, Namenlos314, Lahi,
Gq86, Lucas_Werkmeister_WMDE, GoranSMilovanovic, QZanden, EBjune, merbst,
LawExplorer, _jensen, rosalieper, Scott_WUaS, Jonas, Xmlizer, jkroll,
Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Mbch331
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