The challenge I think is that "slow osd" is probably a global question. That is, I think it requires the agent to compare a given osd to the other osds in the cluster (and to itself earlier in time). -Sam On Fri, Nov 21, 2014 at 1:07 PM, Mark Nelson <mark.nelson@xxxxxxxxxxx> wrote: > It'd be nice if something like slow OSD detection could exist outside of > calamari and itself by an event that we record in the logs and make > available via the admin socket (so that calamari could pick it up). That way > folks could get it into logstash and other system monitoring tools (say > PCP/Nagios/etc). > > Mark > > > On 11/21/2014 02:58 PM, Samuel Just wrote: >> >> It's still an open item. #ceph-devel would be a good place to bounce >> ideas. Through the admin_socket and perf_counter machinery, the osds >> already expose a bunch of information about queue length, latency, >> etc. This might actually fit well in calamari, which already gathers >> a bunch of those stats. >> -Sam >> >> On Thu, Nov 20, 2014 at 9:00 PM, Sreenath BH <bhsreenath@xxxxxxxxx> wrote: >>> >>> Hi All >>> >>> Slow OSD detection is mentioned as one of the projects ideas in >>> https://wiki.ceph.com/Development/Project_Ideas >>> >>> I am interested in implementing this. Is this still an open item? >>> >>> thanks, >>> Sreenath >>> -- >>> To unsubscribe from this list: send the line "unsubscribe ceph-devel" in >>> the body of a message to majordomo@xxxxxxxxxxxxxxx >>> More majordomo info at http://vger.kernel.org/majordomo-info.html >> >> -- >> To unsubscribe from this list: send the line "unsubscribe ceph-devel" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> > -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
