Hi, Am 03.02.2016 um 10:26 schrieb Gregory Farnum: > On Tue, Feb 2, 2016 at 10:09 PM, Michael Metz-Martini | SpeedPartner > GmbH <metz@xxxxxxxxxxxxxxx> wrote: >> Putting some higher load via cephfs on the cluster leads to messages >> like mds0: Client X failing to respond to capability release after some >> minutes. Requests from other clients start to block after a while. >> Rebooting the client named client resolves the issue. > There are some bugs around this functionality, but I *think* your > clients are new enough it shouldn't be an issue. > However, it's entirely possible your clients are actually making use > of enough inodes that the MDS server is running into its default > limits. If your MDS has memory available, you probably want to > increase the cache size from its default 100k (mds cache size = X). mds_cache_size is already 4000000 and so a lot higher than usual. (google said I should increase ...) > Or maybe your kernels are too old; Zheng would know. We're already far away from centos-Dist-Kernel. but upgrading to 4.4.x for the clients should be possible if that might help. -- Kind regards Michael _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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