[DRBD-user] Resource is 'Blocked: upper'

[Lars Ellenberg]

On Mon, Aug 27, 2018 at 06:15:09PM +0200, Julien Escario wrote:
> Le 27/08/2018 à 17:44, Lars Ellenberg a écrit :
> > On Mon, Aug 27, 2018 at 05:01:52PM +0200, Julien Escario wrote:
> >> Hello,
> >> We're stuck in a strange situation. One of our ressources is marked as :
> >> volume 0 (/dev/drbd155): UpToDate(normal disk state) Blocked: upper
> >>
> >> I used drbdtop to get this info because drbdadm hangs.
> >>
> >> I can also see a drbdsetup process blocked :
> >> drbdsetup disk-options 155 --set-defaults --read-balancing=prefer-local
> >> --al-extents=6481 --al-updates=no --md-flushes=no
> > 
> > maybe check /proc/<pid>/stack to see where it blocks.
> > Also, what DRBD (kernel) version is this?
> 
> # cat /proc/drbd
> version: 9.0.12-1 (api:2/proto:86-112)
> GIT-hash: 7eb4aef4abbfba8ebb1afbcc30574df74db0063e build by root at vm9, 2018-03-27
> 15:55:44
> Transports (api:16): tcp (9.0.12-1)
> 
> 
> # cat /proc/22538/stack
> [<ffffffffc0b6dc67>] drbd_al_shrink+0xd7/0x1a0 [drbd]
> [<ffffffffc0b85712>] drbd_adm_disk_opts+0x2b2/0x580 [drbd]

Something that was fixed in April I think.
You want to upgrade to 9.0.15
(or whatever is "latest" at the time someone else
finds this in the archives...)

Unfortunately you will have to reboot,
likely more or less "hard".

-- 
: Lars Ellenberg
: LINBIT | Keeping the Digital World Running
: DRBD -- Heartbeat -- Corosync -- Pacemaker

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