On Wed, Mar 14, 2018 at 5:42 PM, Karthik Subrahmanya <ksubr...@redhat.com> wrote:
> > > On Wed, Mar 14, 2018 at 3:36 PM, Anatoliy Dmytriyev <to...@tolid.eu.org> > wrote: > >> Hi Karthik, >> >> >> Thanks a lot for the explanation. >> >> Does it mean a distributed volume health can be checked only by "gluster >> volume status " command? >> > Yes. I am not aware of any other command which can give the status of > plain distribute volume which is similar to the heal info command for > replicate/disperse volumes. > >> And one more question: cluster.min-free-disk is 10% by default. What kind >> of "side effects" can we face if this option will be reduced to, for >> example, 5%? Could you point to any best practice document(s)? >> > Yes you can decrease it to any value. There won't be any side effect. > Small correction here, min-free-disk should ideally be set to larger than the largest file size likely to be written. Decreasing it beyond a point raises the likelihood of the brick getting full which is a very bad state to be in. Will update you if I get some document which explains this thing. Sorry for the previous statement. > > Regards, > Karthik > >> >> Regards, >> >> Anatoliy >> >> >> >> >> >> On 2018-03-13 16:46, Karthik Subrahmanya wrote: >> >> Hi Anatoliy, >> >> The heal command is basically used to heal any mismatching contents >> between replica copies of the files. >> For the command "gluster volume heal <volname>" to succeed, you should >> have the self-heal-daemon running, >> which is true only if your volume is of type replicate/disperse. >> In your case you have a plain distribute volume where you do not store >> the replica of any files. >> So the volume heal will return you the error. >> >> Regards, >> Karthik >> >> On Tue, Mar 13, 2018 at 7:53 PM, Anatoliy Dmytriyev <to...@tolid.eu.org> >> wrote: >> >>> Hi, >>> >>> >>> Maybe someone can point me to a documentation or explain this? I can't >>> find it myself. >>> Do we have any other useful resources except doc.gluster.org? As I see >>> many gluster options are not described there or there are no explanation >>> what is doing... >>> >>> >>> >>> On 2018-03-12 15:58, Anatoliy Dmytriyev wrote: >>> >>>> Hello, >>>> >>>> We have a very fresh gluster 3.10.10 installation. >>>> Our volume is created as distributed volume, 9 bricks 96TB in total >>>> (87TB after 10% of gluster disk space reservation) >>>> >>>> For some reasons I can't "heal" the volume: >>>> # gluster volume heal gv0 >>>> Launching heal operation to perform index self heal on volume gv0 has >>>> been unsuccessful on bricks that are down. Please check if all brick >>>> processes are running. >>>> >>>> Which processes should be run on every brick for heal operation? >>>> >>>> # gluster volume status >>>> Status of volume: gv0 >>>> Gluster process TCP Port RDMA Port >>>> Online Pid >>>> ------------------------------------------------------------ >>>> ------------------ >>>> Brick cn01-ib:/gfs/gv0/brick1/brick 0 49152 Y >>>> 70850 >>>> Brick cn02-ib:/gfs/gv0/brick1/brick 0 49152 Y >>>> 102951 >>>> Brick cn03-ib:/gfs/gv0/brick1/brick 0 49152 Y >>>> 57535 >>>> Brick cn04-ib:/gfs/gv0/brick1/brick 0 49152 Y >>>> 56676 >>>> Brick cn05-ib:/gfs/gv0/brick1/brick 0 49152 Y >>>> 56880 >>>> Brick cn06-ib:/gfs/gv0/brick1/brick 0 49152 Y >>>> 56889 >>>> Brick cn07-ib:/gfs/gv0/brick1/brick 0 49152 Y >>>> 56902 >>>> Brick cn08-ib:/gfs/gv0/brick1/brick 0 49152 Y >>>> 94920 >>>> Brick cn09-ib:/gfs/gv0/brick1/brick 0 49152 Y >>>> 56542 >>>> >>>> Task Status of Volume gv0 >>>> ------------------------------------------------------------ >>>> ------------------ >>>> There are no active volume tasks >>>> >>>> >>>> # gluster volume info gv0 >>>> Volume Name: gv0 >>>> Type: Distribute >>>> Volume ID: 8becaf78-cf2d-4991-93bf-f2446688154f >>>> Status: Started >>>> Snapshot Count: 0 >>>> Number of Bricks: 9 >>>> Transport-type: rdma >>>> Bricks: >>>> Brick1: cn01-ib:/gfs/gv0/brick1/brick >>>> Brick2: cn02-ib:/gfs/gv0/brick1/brick >>>> Brick3: cn03-ib:/gfs/gv0/brick1/brick >>>> Brick4: cn04-ib:/gfs/gv0/brick1/brick >>>> Brick5: cn05-ib:/gfs/gv0/brick1/brick >>>> Brick6: cn06-ib:/gfs/gv0/brick1/brick >>>> Brick7: cn07-ib:/gfs/gv0/brick1/brick >>>> Brick8: cn08-ib:/gfs/gv0/brick1/brick >>>> Brick9: cn09-ib:/gfs/gv0/brick1/brick >>>> Options Reconfigured: >>>> client.event-threads: 8 >>>> performance.parallel-readdir: on >>>> performance.readdir-ahead: on >>>> cluster.nufa: on >>>> nfs.disable: on >>> >>> >>> -- >>> Best regards, >>> Anatoliy >>> _______________________________________________ >>> Gluster-users mailing list >>> Gluster-users@gluster.org >>> http://lists.gluster.org/mailman/listinfo/gluster-users >>> >> >> -- >> Best regards, >> Anatoliy >> > >
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