Re: rbd-nbd stuck request

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On Fri, Jul 24, 2020 at 10:45 AM Herbert Alexander Faleiros
<herbert@xxxxxxxxxxx> wrote:
>
> On Fri, Jul 24, 2020 at 07:28:07PM +0500, Alexander E. Patrakov wrote:
> > On Fri, Jul 24, 2020 at 6:01 PM Herbert Alexander Faleiros
> > <herbert@xxxxxxxxxxx> wrote:
> > >
> > > Hi,
> > >
> > > is there any way to fix it instead a reboot?
> > >
> > > [128632.995249] block nbd0: Possible stuck request 00000000b14a04af: control (read@2097152,4096B). Runtime 9540 seconds
> > > [128663.718993] block nbd0: Possible stuck request 00000000b14a04af: control (read@2097152,4096B). Runtime 9570 seconds
> > > [128694.434774] block nbd0: Possible stuck request 00000000b14a04af: control (read@2097152,4096B). Runtime 9600 seconds
> > > [128725.154515] block nbd0: Possible stuck request 00000000b14a04af: control (read@2097152,4096B). Runtime 9630 seconds
> > >
> > > # ceph -v
> > > ceph version 12.2.13 (584a20eb0237c657dc0567da126be145106aa47e) luminous (stable)
> > >
> > > # rbd-nbd list-mapped
> > > #
> > >
> > > # uname -r
> > > 5.4.52-050452-generic
> >
> > Not enough data to troubleshoot this. Is the rbd-nbd process running?
> >
> > I.e.:
> >
> > # cat /proc/partitions
> > # ps axww | grep nbd
>
> no nbd on /proc/partitions, ps shows only:
>
> root      192324  0.0  0.0      0     0 ?        I<   07:12   0:00 [knbd0-recv]

You can restart the "rbd-nbd" daemon by running "rbd-nbd map --device
/dev/nbd0 <image-spec>"

> --
> Herbert
>
> > --
> > Alexander E. Patrakov
> > CV: http://pc.cd/PLz7
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>


-- 
Jason
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