Single or multiple acitve mds? Were there "Client xxx failing to respond to capability release" health warning? On Mon, May 28, 2018 at 10:38 PM, Oliver Freyermuth <freyermuth@xxxxxxxxxxxxxxxxxx> wrote: > Dear Cephalopodians, > > we just had a "lockup" of many MDS requests, and also trimming fell behind, for over 2 days. > One of the clients (all ceph-fuse 12.2.5 on CentOS 7.5) was in status "currently failed to authpin local pins". Metadata pool usage did grow by 10 GB in those 2 days. > > Rebooting the node to force a client eviction solved the issue, and now metadata usage is down again, and all stuck requests were processed quickly. > > Is there any idea on what could cause something like that? On the client, der was no CPU load, but many processes waiting for cephfs to respond. > Syslog did yield anything. It only affected one user and his user directory. > > If there are no ideas: How can I collect good debug information in case this happens again? > > Cheers, > Oliver > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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