Hi Bryan,
I think this is the old hammer thread you refer to:
http://lists.ceph.com/pipermail/ceph-users-ceph.com/2016-September/013060.html
We also have osdmaps accumulating on v12.2.8 -- ~12000 per osd at the moment.
I'm trying to churn the osdmaps like before, but our maps are not being trimmed.
Did you need to restart the osd's before the churn trick would work?
If so, it seems that something is holding references to old maps, like
like that old hammer issue.
Cheers, Dan
On Tue, Jan 8, 2019 at 5:39 PM Bryan Stillwell <bstillw...@godaddy.com> wrote:
>
> I was able to get the osdmaps to slowly trim (maybe 50 would trim with each
> change) by making small changes to the CRUSH map like this:
>
>
>
> for i in {1..100}; do
>
> ceph osd crush reweight osd.1754 4.00001
>
> sleep 5
>
> ceph osd crush reweight osd.1754 4
>
> sleep 5
>
> done
>
>
>
> I believe this was the solution Dan came across back in the hammer days. It
> works, but not ideal for sure. Across the cluster it freed up around 50TB of
> data!
>
>
>
> Bryan
>
>
>
> From: ceph-users <ceph-users-boun...@lists.ceph.com> on behalf of Bryan
> Stillwell <bstillw...@godaddy.com>
> Date: Monday, January 7, 2019 at 2:40 PM
> To: ceph-users <ceph-users@lists.ceph.com>
> Subject: [ceph-users] osdmaps not being cleaned up in 12.2.8
>
>
>
> I have a cluster with over 1900 OSDs running Luminous (12.2.8) that isn't
> cleaning up old osdmaps after doing an expansion. This is even after the
> cluster became 100% active+clean:
>
>
>
> # find /var/lib/ceph/osd/ceph-1754/current/meta -name 'osdmap*' | wc -l
>
> 46181
>
>
>
> With the osdmaps being over 600KB in size this adds up:
>
>
>
> # du -sh /var/lib/ceph/osd/ceph-1754/current/meta
>
> 31G /var/lib/ceph/osd/ceph-1754/current/meta
>
>
>
> I remember running into this during the hammer days:
>
>
>
> http://tracker.ceph.com/issues/13990
>
>
>
> Did something change recently that may have broken this fix?
>
>
>
> Thanks,
>
> Bryan
>
>
>
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>
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>
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>
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