_______________________________________________It appears I have three stuck IOs after switching my tunables to optimal. We are running 10.2.9 and the offending pool is for gnocchi (which has caused us quite a bit pain at this point). Here are the stuck IOs:
2017-09-22 09:05:40.095125 osd.2 ##########:6802/1453572 164 : cluster [WRN] 3 slow requests, 3 included below; oldest blocked for > 61440.543437 secs
2017-09-22 09:05:40.095138 osd.2 ##########:6802/1453572 165 : cluster [WRN] slow request 61440.543437 seconds old, received at 2017-09-21 16:01:39.551597: osd_op(client.268119861.0:141848 7.e637a4b3 measure [omap-get-vals 0~16] snapc 0=[] RETRY=1 ack+retry+read+balance_reads+skiprwlocks+known_if_redirected e8015) currently waiting for missing object
2017-09-22 09:05:40.095147 osd.2 ##########:6802/1453572 166 : cluster [WRN] slow request 61440.542366 seconds old, received at 2017-09-21 16:01:39.552668: osd_op(client.267462582.0:1628859 7.e637a4b3 measure [omap-get-vals 0~16] snapc 0=[] RETRY=1 ack+retry+read+balance_reads+skiprwlocks+known_if_redirected e8015) currently waiting for missing object
2017-09-22 09:05:40.095152 osd.2 ##########:6802/1453572 167 : cluster [WRN] slow request 61440.169811 seconds old, received at 2017-09-21 16:01:39.925223: osd_op(client.267488428.0:141465 7.e637a4b3 measure [omap-get-vals 0~16] snapc 0=[] RETRY=1 ack+retry+read+balance_reads+skiprwlocks+known_if_redirected e8015) currently waiting for missing object
Currently all IOs aren’t causing issues, but I can’t get these IOs to clear. I have bounced the OSD multiple times, but they haven’t cleared. Any advice?
Also, if anyone has pro tips on how to setup ceph for gnocchi, I’m all ears.
Thanks,
Matthew Stroud
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