[sheepdog-users] 3 nodes cluster - always something to fix when checking

[Hitoshi Mitake]

At Mon, 19 Jan 2015 11:49:12 +0100,
Petre Bandac wrote:
> 
> This time to the correct list (and soory for the wrong initial posting)
> 
> Â  Original Message Â> From: Petre Bandac <petre at kgb.ro>
> Sent: Sunday, January 18, 2015 13:41
> To: sheepdog at lists.wpkg.org
> Subject: [sheepdog] 3 nodes cluster - always something to fix when checking
> 
> Hello
> 
> I am having the following problem: after creating a 3 node cluster and
> importing a few images, every time I issue a check command (per cluster
> oder per vdi), it has something to fix and repair.
> 
> I suppose this is not the normal behavior, but since the vm's are
> up'n'running, I see no explanation; before converting these
> medium-sized images, I have played around with 2 GB images, and there
> no fix was needed and the check was instant (without the status line
> slowly growing up to 100%).

Hi Petre, sorry for my late reply.

> 
> My question is: when all the nodes of the cluster are running, wouldn't
> it be normal at checking to be nothing found to fix ?

If there's no problems of VDIs (missing objects, inconsistent state),
vdi check will not find any problems.

> and the duration
> of the check is direct proportional with the size of the images ?

Yes.

Thanks,
Hitoshi

> 
> Thanks,
> 
> petre
> 
> ###################
> 
> 
> #dog cluster format -c 2:1
> 
> # dog cluster info
> Cluster status: running, auto-recovery enabled
> 
> Cluster created at Sun Jan 18 02:46:17 2015
> 
> Epoch Time Version
> 2015-01-18 02:46:17 1 [10.0.0.70:7000, 10.0.0.87:7000,
> 10.0.0.96:7000]
> 
> 
> # dog node list
> Id Host:Port V-Nodes Zone
> 0 10.0.0.70:7000 286 1174405130
> 1 10.0.0.87:7000 66 1459617802
> 2 10.0.0.96:7000 32 1610612746
> 
> # dog vdi list -r
> = webserver-sys 0 15728640000 15451815936 0 1421543762 e16ca 2:1 
> = provisioning 0 23622320128 19889389568 0 1421541995 27eb28 2:1 
> = webserver-data 0 53477376000 35131490304 0 1421543833 677471 2:1 
> = alex 0 53687091200 12205424640 0 1421543559 cdad97 2:1 
> 
> sheepdog version --> 0.8.3-1~bpo70+1 on debian 7 nodes
> 
> every check command (below with the machines stopped, after the
> conversion) gives the following output:
> 
> dog cluster check
> fix vdi webserver-sys
> 100.0 %
> [================================================================================================================================]
> 15 GB / 15 GB finish check&repair webserver-sys fix vdi provisioning
> 22.7 %
> [=============================>
> ] 5.0 GB / 22 GB object 27eb28000002dd is inconsistent 100.0 %
> [================================================================================================================================]
> 22 GB / 22 GB finish check&repair provisioning fix vdi webserver-data
> 100.0 %
> [================================================================================================================================]
> 50 GB / 50 GB finish check&repair webserver-data fix vdi alex
> 100.0 %
> [================================================================================================================================]
> 50 GB / 50 GB finish check&repair alex
> 
> 
> after this, issuing the same command again gets the same result -
> something to repair
> 
> # dog cluster check
> fix vdi webserver-sys
> 100.0 %
> [================================================================================================================================]
> 15 GB / 15 GB finish check&repair webserver-sys fix vdi provisioning
> 22.7 %
> [=============================>
> ] 5.0 GB / 22 GB object 27eb28000002dd is inconsistent 100.0 %
> [================================================================================================================================]
> 22 GB / 22 GB finish check&repair provisioning fix vdi webserver-data
> 100.0 %
> [================================================================================================================================]
> 50 GB / 50 GB finish check&repair webserver-data fix vdi alex
> 100.0 %
> [================================================================================================================================]
> 50 GB / 50 GB finish check&repair alex
> 
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