On Thu, Feb 28, 2019 at 12:49 PM Stefan Kooman <stefan@xxxxxx> wrote: > > Dear list, > > After upgrading to 12.2.11 the MDSes are reporting slow metadata IOs > (MDS_SLOW_METADATA_IO). The metadata IOs would have been blocked for > more that 5 seconds. We have one active, and one active standby MDS. All > storage on SSD (Samsung PM863a / Intel DC4500). No other (OSD) slow ops > reported. The MDSes are underutilized, only a handful of active clients > and almost no load (fast hexacore CPU, 256 GB RAM, 20 Gb/s network). The > cluster is also far from busy. > > I've dumped ops in flight on the MDSes but all ops that are printed are > finished in a split second (duration: 0.000152), flag_point": "acquired > locks". I believe you're looking at the wrong "ops" dump. You want to check "objector_requests". -- Patrick Donnelly _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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