Hi, Am 04.02.2016 um 09:43 schrieb Yan, Zheng: > On Thu, Feb 4, 2016 at 4:36 PM, Michael Metz-Martini | SpeedPartner > GmbH <metz@xxxxxxxxxxxxxxx> wrote: >> Am 03.02.2016 um 15:55 schrieb Yan, Zheng: >>>> On Feb 3, 2016, at 21:50, Michael Metz-Martini | SpeedPartner GmbH <metz@xxxxxxxxxxxxxxx> wrote: >>>> Am 03.02.2016 um 12:11 schrieb Yan, Zheng: >>>>>> On Feb 3, 2016, at 17:39, Michael Metz-Martini | SpeedPartner GmbH <metz@xxxxxxxxxxxxxxx> wrote: >>>>>> Am 03.02.2016 um 10:26 schrieb Gregory Farnum: >>>>>>> On Tue, Feb 2, 2016 at 10:09 PM, Michael Metz-Martini | SpeedPartner >>>> 2016-02-03 14:42:25.581840 7fadfd280700 0 log_channel(default) log >>>> [WRN] : 7 slow requests, 6 included below; oldest blocked for > >>>> 62.125785 secs >>>> 2016-02-03 14:42:25.581849 7fadfd280700 0 log_channel(default) log >>>> [WRN] : slow request 62.125785 seconds old, received at 2016-02-03 >>>> 14:41:23.455812: client_request(client.10199855:1313157 getattr >>>> pAsLsXsFs #100815bd349 2016-02-03 14:41:23.452386) currently failed to >>>> rdlock, waiting >>> >>> This seems like dirty page writeback is too slow. Is there any hung OSD request in /sys/kernel/debug/ceph/xxx/osdc? >> Where should I check? Client or mds? Do I have to enable something to >> get this details? Directory /sys/kernel/debug/ceph/ seems to be missing. > On client with kernel ceph mount. If there is no debugfs, mount > debugfs first (mount -t debugfs /sys/kernel/debug /sys/kernel/debug) Got it. http://www.michael-metz.de/osdc.txt.gz (about 500kb uncompressed) By looking around I found caps .. $ cat caps total 305975 avail 2 used 305973 reserved 0 min 1024 Somehow related? avail=2 is low ;-) -- Kind regards Michael Metz-Martini _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com