Can you provide more details on your setup and how you are running the rbd export? If clearing the pagecache, dentries, and inodes solves the issue, it sounds like it's outside of Ceph (unless you are exporting to a CephFS or krbd mount point).
-- Jason Dillaman ----- Original Message ----- > From: "Stefan Priebe - Profihost AG" <s.pri...@profihost.ag> > To: ceph-us...@ceph.com > Sent: Saturday, October 17, 2015 2:02:37 PM > Subject: [ceph-users] rbd export hangs / does nothing without regular > drop_cache > Hi, > I've a machine doing rbd backup with the rbd export command. Around 10tb each > day. After some days it starts to get very slowly and the rbd commands seem > to do nothing. If I run echo 3 > drop_caches they starts immediately again > to get traffic and dumping data. > What's wrong here? > Kernel 4.1.10 > ceph firefly > Greets, > Stefan > Excuse my typo s ent from my mobile phone. > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
