Hi

this probably comes from your RGW which is a big consumer/producer of OMAP for 
bucket indexes.

Have a look at this previous post and just adapt the pool name to match the one 
where it’s detected: https://www.spinics.net/lists/ceph-users/msg51681.html

Regards
JC

> On Nov 14, 2019, at 15:23, dhils...@performair.com wrote:
> 
> All;
> 
> We had a warning about a large OMAP object pop up in one of our clusters 
> overnight.  The cluster is configured for CephFS, but nothing mounts a 
> CephFS, at this time.
> 
> The cluster mostly uses RGW.  I've checked the cluster log, the MON log, and 
> the MGR log on one of the mons, with no useful references to the pool / pg 
> where the large OMAP objects resides.
> 
> Is my only option to find this large OMAP object to go through the OSD logs 
> for the individual OSDs in the cluster?
> 
> Thank you,
> 
> Dominic L. Hilsbos, MBA 
> Director - Information Technology 
> Perform Air International Inc.
> dhils...@performair.com 
> www.PerformAir.com
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> ceph-users@lists.ceph.com
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> 

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