Hi Ashley,
Thanks for your response. Nothing that I can think of would have
happened. We are using max_mds =1. We do have 4 so used to have 3
standby. Within minutes they all crash.
On Fri, May 1, 2020 at 2:21 PM Ashley Merrick <singapore@xxxxxxxxxxxxxx>
wrote:
> Quickly checking the code that calls that assert
>
>
>
>
> if (version > omap_version) {
>
> omap_version = version;
>
> omap_num_objs = num_objs;
>
> omap_num_items.resize(omap_num_objs);
>
> journal_state = jstate;
>
> } else if (version == omap_version) {
>
> ceph_assert(omap_num_objs == num_objs);
>
> if (jstate > journal_state)
>
> journal_state = jstate;
>
> }
>
> }
>
>
> Im not a dev, but not sure if this will help, seems could mean that MDS
> thinks its behind on omaps/too far ahead.
>
>
> Anything happened recently? Just running a single MDS?
>
>
> Hopefully someone else may see this and shine some light on what could be
> causing it.
>
>
>
> ---- On Sat, 02 May 2020 02:10:58 +0800 marcopizzolo@xxxxxxxxx wrote ----
>
>
> Hello,
>
> Hoping you can help me.
>
> Ceph had been largely problem free for us for the better part of a year.
> We have a high file count in a single CephFS filesystem, and are seeing
> this error in the logs:
>
>
> /home/jenkins-build/build/workspace/ceph-build/ARCH/x86_64/AVAILABLE_ARCH/x86_64/AVAILABLE_DIST/centos7/DIST/centos7/MACHINE_SIZE/gigantic/release/14.2.9/rpm/el7/BUILD/ceph-14.2.9/src/mds/OpenFileTable.cc:
> 777: FAILED ceph_assert(omap_num_objs == num_objs)
>
> The issued seemed to occur this morning, and restarting the MDS as well as
> rebooting the servers doesn't correct the problem.
>
> Not really sure where to look next as the MDS daemons crash.
>
> Appreciate any help you can provide
>
> Marco
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