Hi, so, the packages for debian wheezy from intank repository are using the leveldb package from debian repo ? because debian wheezy libleveldb1 is also quite old http://packages.debian.org/wheezy/libleveldb1 libleveldb1 (0+20120530.gitdd0d562-1) ----- Mail original ----- De: "Mark Nelson" <mark.nelson@xxxxxxxxxxx> À: ceph-users@xxxxxxxxxxxxxx Envoyé: Jeudi 23 Janvier 2014 14:16:56 Objet: Re: One specific OSD process using much more CPU than all the others On 01/23/2014 06:39 AM, Sylvain Munaut wrote: > Hi, > >> I have a cluster that contains 16 OSDs spread over 4 physical >> machines. Each machines runs 4 OSD process. >> >> Among those, one isue periodically using 100% of the CPU. > > I finally tracked this down. CPU usage was mostly from leveldb calls > > Andrey Korolyov (xdeller on IRC) pointed out they had a similar issue > and upgrading leveldb stable to >= 1.14 solved the issue. > > I was rebuilding my own packages and the debian/control file just > depends on leveldb-dev without any particular version requirement so > it was using the one that comes from ubuntu precise which is an old > 2012 version. I backported 1.14 from debian to precise and rebuilt > against that and this seems to have fixed my issues as well. Thanks for checking this out Sylvain. We've seen leveldb use quite a bit of CPU in the past too at times, specifically during object iteration and memory compaction. > > > Cheers, > > Sylvain > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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