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<p>Hi Karthik,</p>
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<p>Thanks a lot for the explanation.</p>
<p>Does it mean a distributed volume health can be checked only by "gluster volume status " command?</p>
<p>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)?</p>
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<p>Regards,</p>
<p>Anatoliy</p>
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<p>On 2018-03-13 16:46, Karthik Subrahmanya wrote:</p>
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<div>Hi Anatoliy,<br /><br /></div>
The heal command is basically used to heal any mismatching contents between replica copies of the files.</div>
For the command "gluster volume heal <volname>" to succeed, you should have the self-heal-daemon running,<br />which is true only if your volume is of type replicate/disperse.</div>
In your case you have a plain distribute volume where you do not store the replica of any files.</div>
So the volume heal will return you the error.<br /><br /></div>
Regards,</div>
Karthik</div>
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<div class="gmail_quote">On Tue, Mar 13, 2018 at 7:53 PM, Anatoliy Dmytriyev <span><<a href="mailto:tolid@tolid.eu.org">tolid@tolid.eu.org</a>></span> wrote:<br />
<blockquote class="gmail_quote" style="margin: 0 0 0 .8ex; border-left: 1px #ccc solid; padding-left: 1ex;">Hi,<br /> <br /> <br /> Maybe someone can point me to a documentation or explain this? I can't find it myself.<br /> Do we have any other useful resources except <a href="http://doc.gluster.org" target="_blank" rel="noopener noreferrer">doc.gluster.org</a>? As I see many gluster options are not described there or there are no explanation what is doing...
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<div class="h5"><br /> <br /> <br /> On 2018-03-12 15:58, Anatoliy Dmytriyev wrote:<br />
<blockquote class="gmail_quote" style="margin: 0 0 0 .8ex; border-left: 1px #ccc solid; padding-left: 1ex;">Hello,<br /> <br /> We have a very fresh gluster 3.10.10 installation.<br /> Our volume is created as distributed volume, 9 bricks 96TB in total<br /> (87TB after 10% of gluster disk space reservation)<br /> <br /> For some reasons I can't "heal" the volume:<br /> # gluster volume heal gv0<br /> Launching heal operation to perform index self heal on volume gv0 has<br /> been unsuccessful on bricks that are down. Please check if all brick<br /> processes are running.<br /> <br /> Which processes should be run on every brick for heal operation?<br /> <br /> # gluster volume status<br /> Status of volume: gv0<br /> Gluster process TCP Port RDMA Port Online Pid<br /> ------------------------------<wbr />------------------------------<wbr />------------------<br /> Brick cn01-ib:/gfs/gv0/brick1/brick 0 49152 Y 70850<br /> Brick cn02-ib:/gfs/gv0/brick1/brick 0 49152 Y 102951<br /> Brick cn03-ib:/gfs/gv0/brick1/brick 0 49152 Y 57535<br /> Brick cn04-ib:/gfs/gv0/brick1/brick 0 49152 Y 56676<br /> Brick cn05-ib:/gfs/gv0/brick1/brick 0 49152 Y 56880<br /> Brick cn06-ib:/gfs/gv0/brick1/brick 0 49152 Y 56889<br /> Brick cn07-ib:/gfs/gv0/brick1/brick 0 49152 Y 56902<br /> Brick cn08-ib:/gfs/gv0/brick1/brick 0 49152 Y 94920<br /> Brick cn09-ib:/gfs/gv0/brick1/brick 0 49152 Y 56542<br /> <br /> Task Status of Volume gv0<br /> ------------------------------<wbr />------------------------------<wbr />------------------<br /> There are no active volume tasks<br /> <br /> <br /> # gluster volume info gv0<br /> Volume Name: gv0<br /> Type: Distribute<br /> Volume ID: 8becaf78-cf2d-4991-93bf-f24466<wbr />88154f<br /> Status: Started<br /> Snapshot Count: 0<br /> Number of Bricks: 9<br /> Transport-type: rdma<br /> Bricks:<br /> Brick1: cn01-ib:/gfs/gv0/brick1/brick<br /> Brick2: cn02-ib:/gfs/gv0/brick1/brick<br /> Brick3: cn03-ib:/gfs/gv0/brick1/brick<br /> Brick4: cn04-ib:/gfs/gv0/brick1/brick<br /> Brick5: cn05-ib:/gfs/gv0/brick1/brick<br /> Brick6: cn06-ib:/gfs/gv0/brick1/brick<br /> Brick7: cn07-ib:/gfs/gv0/brick1/brick<br /> Brick8: cn08-ib:/gfs/gv0/brick1/brick<br /> Brick9: cn09-ib:/gfs/gv0/brick1/brick<br /> Options Reconfigured:<br /> client.event-threads: 8<br /> performance.parallel-readdir: on<br /> performance.readdir-ahead: on<br /> cluster.nufa: on<br /> nfs.disable: on</blockquote>
<br /> -- <br /> Best regards,<br /> Anatoliy<br /> ______________________________<wbr />_________________<br /> Gluster-users mailing list<br /> <a href="mailto:Gluster-users@gluster.org">Gluster-users@gluster.org</a><br /> <a href="http://lists.gluster.org/mailman/listinfo/gluster-users" target="_blank" rel="noopener noreferrer">http://lists.gluster.org/mailm<wbr />an/listinfo/gluster-users</a></div>
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<div>-- <br />
<div class="pre" style="margin: 0; padding: 0; font-family: monospace">Best regards,<br /> Anatoliy</div>
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