Re: BLUEFS_SPILLOVER BlueFS spillover detected

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Zhenshi,

I've been doing the same periodically over the past couple weeks.  I
haven't had to do it a second time on any of my OSDs, but I'm told that I
can expect to do so in the future.  I believe that the conclusion in this
list was that for a workload with many small files it might be necessary to
allocate 300GB for DB per OSD.

-Dave

--
Dave Hall
Binghamton University
kdhall@xxxxxxxxxxxxxx

On Mon, Nov 16, 2020 at 12:41 AM Zhenshi Zhou <deaderzzs@xxxxxxxxx> wrote:

> well, the warning message disappeared after I executed "ceph tell osd.63
> compact".
>
> Zhenshi Zhou <deaderzzs@xxxxxxxxx> 于2020年11月16日周一 上午10:04写道:
>
> > Has anyone met this issue yet?
> >
> > Zhenshi Zhou <deaderzzs@xxxxxxxxx> 于2020年11月14日周六 下午12:36写道:
> >
> >> Hi,
> >>
> >> I have a cluster of 14.2.8.
> >> I created OSDs with dedicated PCIE for wal/db when deployed the cluster.
> >> I set 72G for db and 3G for wal on each OSD.
> >>
> >> And now my cluster is in a WARN stats until a long health time.
> >> # ceph health detail
> >> HEALTH_WARN BlueFS spillover detected on 1 OSD(s)
> >> BLUEFS_SPILLOVER BlueFS spillover detected on 1 OSD(s)
> >>      osd.63 spilled over 33 MiB metadata from 'db' device (1.5 GiB used
> >> of 72 GiB) to slow device
> >>
> >> I lookup on google and find https://tracker.ceph.com/issues/38745
> >> I'm not sure if it's the same issue.
> >> How can I deal with this?
> >>
> >> THANKS
> >>
> >
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