Hi, In the last few days I've had some issues with the radosgw in which all requests would just stop being served. After some investigation I would go for a single slow OSD. I just restarted that OSD and everything would just go back to work. Every single time there was a deep scrub running on that OSD. This has happened in several different OSDs, running in different machines. I currently have 32 OSDs on this cluster, with 4 OSD per host. First thing is should this happen? A single OSD with issues/slowness shouldn't bring the whole cluster to a crawl... How can I make it stop happening? What kind of debug information can I gather to stop this from happening? any further thoughts? I'm still running Emperor (0.72.2). -- Luis Periquito Unix Engineer Ocado.com <http://www.ocado.com/> Head Office, Titan Court, 3 Bishop Square, Hatfield Business Park, Hatfield, Herts AL10 9NE -- Notice: This email is confidential and may contain copyright material of members of the Ocado Group. Opinions and views expressed in this message may not necessarily reflect the opinions and views of the members of the Ocado Group. If you are not the intended recipient, please notify us immediately and delete all copies of this message. Please note that it is your responsibility to scan this message for viruses. References to the ?Ocado Group? are to Ocado Group plc (registered in England and Wales with number 7098618) and its subsidiary undertakings (as that expression is defined in the Companies Act 2006) from time to time. The registered office of Ocado Group plc is Titan Court, 3 Bishops Square, Hatfield Business Park, Hatfield, Herts. AL10 9NE. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.ceph.com/pipermail/ceph-users-ceph.com/attachments/20140806/abca7ca3/attachment.htm>
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