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 <[email protected]> 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 > [email protected] > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list [email protected] http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
