Hi Abhishek, Bitrot requires versioning of files to be down on writes. This was being done irrespective of whether bitrot is enabled or not. This takes considerable CPU. With the fix https://review.gluster.org/#/c/14442/, it is made optional and is enabled only with bitrot. If bitrot is not enabled, then you won't see any setxattr/getxattrs related to bitrot. The fix would be available in 3.11. Thanks and Regards, Kotresh H R ----- Original Message ----- > From: "ABHISHEK PALIWAL" <abhishpaliwal@xxxxxxxxx> > To: "Pranith Kumar Karampuri" <pkarampu@xxxxxxxxxx> > Cc: "Gluster Devel" <gluster-devel@xxxxxxxxxxx>, "gluster-users" <gluster-users@xxxxxxxxxxx>, "Kotresh Hiremath > Ravishankar" <khiremat@xxxxxxxxxx> > Sent: Monday, April 24, 2017 11:30:57 AM > Subject: Re: [Gluster-users] High load on glusterfsd process > > Hi Kotresh, > > Could you please update me on this? > > Regards, > Abhishek > > On Sat, Apr 22, 2017 at 12:31 PM, Pranith Kumar Karampuri < > pkarampu@xxxxxxxxxx> wrote: > > > +Kotresh who seems to have worked on the bug you mentioned. > > > > On Fri, Apr 21, 2017 at 12:21 PM, ABHISHEK PALIWAL < > > abhishpaliwal@xxxxxxxxx> wrote: > > > >> > >> If the patch provided in that case will resolve my bug as well then > >> please provide the patch so that I will backport it on 3.7.6 > >> > >> On Fri, Apr 21, 2017 at 11:30 AM, ABHISHEK PALIWAL < > >> abhishpaliwal@xxxxxxxxx> wrote: > >> > >>> Hi Team, > >>> > >>> I have noticed that there are so many glusterfsd threads are running in > >>> my system and we observed some of those thread consuming more cpu. I > >>> did “strace” on two such threads (before the problem disappeared by > >>> itself) > >>> and found that there is a continuous activity like below: > >>> > >>> lstat("/opt/lvmdir/c2/brick/.glusterfs/e7/7d/e77d12b3-92f8-4 > >>> dfe-9a7f-246e901cbdf1/002700/firewall_-J208482-4000025_20170126T113552+0000.log.gz", > >>> {st_mode=S_IFREG|0670, st_size=1995, ...}) = 0 > >>> lgetxattr("/opt/lvmdir/c2/brick/.glusterfs/e7/7d/e77d12b3-92 > >>> f8-4dfe-9a7f-246e901cbdf1/002700/firewall_-J208482-4000025_20170126T113552+0000.log.gz", > >>> "trusted.bit-rot.bad-file", 0x3fff81f58550, 255) = -1 ENODATA (No data > >>> available) > >>> lgetxattr("/opt/lvmdir/c2/brick/.glusterfs/e7/7d/e77d12b3-92 > >>> f8-4dfe-9a7f-246e901cbdf1/002700/firewall_-J208482-4000025_20170126T113552+0000.log.gz", > >>> "trusted.bit-rot.signature", 0x3fff81f58550, 255) = -1 ENODATA (No data > >>> available) > >>> lstat("/opt/lvmdir/c2/brick/.glusterfs/e7/7d/e77d12b3-92f8-4 > >>> dfe-9a7f-246e901cbdf1/002700/tcli_-J208482-4000025_20170123T180550+0000.log.gz", > >>> {st_mode=S_IFREG|0670, st_size=169, ...}) = 0 > >>> lgetxattr("/opt/lvmdir/c2/brick/.glusterfs/e7/7d/e77d12b3-92 > >>> f8-4dfe-9a7f-246e901cbdf1/002700/tcli_-J208482-4000025_20170123T180550+0000.log.gz", > >>> "trusted.bit-rot.bad-file", 0x3fff81f58550, 255) = -1 ENODATA (No data > >>> available) > >>> lgetxattr("/opt/lvmdir/c2/brick/.glusterfs/e7/7d/e77d12b3-92 > >>> f8-4dfe-9a7f-246e901cbdf1/002700/tcli_-J208482-4000025_20170123T180550+0000.log.gz", > >>> "trusted.bit-rot.signature", 0x3fff81f58550, 255) = -1 ENODATA (No data > >>> available) > >>> > >>> I have found the below existing issue which is very similar to my > >>> scenario. > >>> > >>> https://bugzilla.redhat.com/show_bug.cgi?id=1298258 > >>> > >>> We are using the gluster-3.7.6 and it seems that the issue is fixed in > >>> 3.8.4 version. > >>> > >>> Could you please let me know why it showing the number of above logs and > >>> reason behind it as it is not explained in the above bug. > >>> > >>> Regards, > >>> Abhishek > >>> > >>> -- > >>> > >>> > >>> > >>> > >>> Regards > >>> Abhishek Paliwal > >>> > >> > >> > >> > >> -- > >> > >> > >> > >> > >> Regards > >> Abhishek Paliwal > >> > >> _______________________________________________ > >> Gluster-users mailing list > >> Gluster-users@xxxxxxxxxxx > >> http://lists.gluster.org/mailman/listinfo/gluster-users > >> > > > > > > > > -- > > Pranith > > > > > > -- > > > > > Regards > Abhishek Paliwal > _______________________________________________ Gluster-devel mailing list Gluster-devel@xxxxxxxxxxx http://lists.gluster.org/mailman/listinfo/gluster-devel
