Replica count has been set to 2. Why? -- Regards, Sébastien Han. On Tue, Mar 12, 2013 at 12:45 PM, Vladislav Gorbunov <vadikgo@xxxxxxxxx> wrote: >> FYI I'm using 450 pgs for my pools. > Please, can you show the number of object replicas? > > ceph osd dump | grep 'rep size' > > Vlad Gorbunov > > 2013/3/5 Sébastien Han <han.sebastien@xxxxxxxxx>: >> FYI I'm using 450 pgs for my pools. >> >> -- >> Regards, >> Sébastien Han. >> >> >> On Fri, Mar 1, 2013 at 8:10 PM, Sage Weil <sage@xxxxxxxxxxx> wrote: >>> >>> On Fri, 1 Mar 2013, Wido den Hollander wrote: >>> > On 02/23/2013 01:44 AM, Sage Weil wrote: >>> > > On Fri, 22 Feb 2013, S?bastien Han wrote: >>> > > > Hi all, >>> > > > >>> > > > I finally got a core dump. >>> > > > >>> > > > I did it with a kill -SEGV on the OSD process. >>> > > > >>> > > > https://www.dropbox.com/s/ahv6hm0ipnak5rf/core-ceph-osd-11-0-0-20100-1361539008 >>> > > > >>> > > > Hope we will get something out of it :-). >>> > > >>> > > AHA! We have a theory. The pg log isnt trimmed during scrub (because teh >>> > > old scrub code required that), but the new (deep) scrub can take a very >>> > > long time, which means the pg log will eat ram in the meantime.. >>> > > especially under high iops. >>> > > >>> > >>> > Does the number of PGs influence the memory leak? So my theory is that when >>> > you have a high number of PGs with a low number of objects per PG you don't >>> > see the memory leak. >>> > >>> > I saw the memory leak on a RBD system where a pool had just 8 PGs, but after >>> > going to 1024 PGs in a new pool it seemed to be resolved. >>> > >>> > I've asked somebody else to try your patch since he's still seeing it on his >>> > systems. Hopefully that gives us some results. >>> >>> The PGs were active+clean when you saw the leak? There is a problem (that >>> we just fixed in master) where pg logs aren't trimmed for degraded PGs. >>> >>> sage >>> >>> > >>> > Wido >>> > >>> > > Can you try wip-osd-log-trim (which is bobtail + a simple patch) and see >>> > > if that seems to work? Note that that patch shouldn't be run in a mixed >>> > > argonaut+bobtail cluster, since it isn't properly checking if the scrub is >>> > > class or chunky/deep. >>> > > >>> > > Thanks! >>> > > sage >>> > > >>> > > >>> > > > -- >>> > > > Regards, >>> > > > S?bastien Han. >>> > > > >>> > > > >>> > > > On Fri, Jan 11, 2013 at 7:13 PM, Gregory Farnum <greg@xxxxxxxxxxx> wrote: >>> > > > > On Fri, Jan 11, 2013 at 6:57 AM, S?bastien Han <han.sebastien@xxxxxxxxx> >>> > > > > wrote: >>> > > > > > > Is osd.1 using the heap profiler as well? Keep in mind that active >>> > > > > > > use >>> > > > > > > of the memory profiler will itself cause memory usage to increase ? >>> > > > > > > this sounds a bit like that to me since it's staying stable at a >>> > > > > > > large >>> > > > > > > but finite portion of total memory. >>> > > > > > >>> > > > > > Well, the memory consumption was already high before the profiler was >>> > > > > > started. So yes with the memory profiler enable an OSD might consume >>> > > > > > more memory but this doesn't cause the memory leaks. >>> > > > > >>> > > > > My concern is that maybe you saw a leak but when you restarted with >>> > > > > the memory profiling you lost whatever conditions caused it. >>> > > > > >>> > > > > > Any ideas? Nothing to say about my scrumbing theory? >>> > > > > I like it, but Sam indicates that without some heap dumps which >>> > > > > capture the actual leak then scrub is too large to effectively code >>> > > > > review for leaks. :( >>> > > > > -Greg >>> > > > -- >>> > > > 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 >>> > > >>> > >>> > >>> > -- >>> > Wido den Hollander >>> > 42on B.V. >>> > >>> > Phone: +31 (0)20 700 9902 >>> > Skype: contact42on >>> > >>> > >> -- >> 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
