[Gluster-users] Unable to remove / replace faulty bricks

elvinas.piliponis at barclays.com elvinas.piliponis at barclays.com
Tue Jun 18 06:13:38 UTC 2013


When trying to recover from failed node and replace brick with spare one I have trashed my cluster and now it is in stuck state.
Any ideas, how to reintroduce/remove those nodes and bring peace and order to cluster?

There was a pending brick replacement operation from 0031 to 0028 (it is still not commited according to rbstate file)
There was a hardware failure on 0022 node

I was not able to commit replace brick 0031 due to 0022 was not responding and not giving cluster lock to requesting node.
I was not able to start replacement 0022 to 0028  due to pending brick replacement
I have forced peer removal from cluster, hoping that afterwards I would be able to complete operations. Unfortunately I have removes not only 0022 but 0031 also.

I have peer probed 0031 successfully. But now gluster volume info and volume status both lists 0031 node. But when I attempt to do a brick operation I do get:

gluster volume remove-brick glustervmstore 0031:/mnt/vmstore/brick 0036:/mnt/vmstore/brick force
Removing brick(s) can result in data loss. Do you want to Continue? (y/n) y
Incorrect brick 0031:/mnt/vmstore/brick for volume glustervmstore

gluster volume replace-brick glustervmstore 0031:/mnt/vmstore/brick 0028:/mnt/vmstore/brick commit force
brick: 0031:/mnt/vmstore/brick does not exist in volume: glustervmstore

Same applies to 0022 which is listed in volume info but not on volume status.

Full cluster volume stop and start not attempted as there are some Terabytes of information stored and actively used (Gluster used as VM storage)

Thank you

Elvinas Piliponis I Virtualisation Engineering Engineer I Global Technology Infrastructure and Services
Tel +370 5 251 1218, 7 2249 1218 I  Mobile +370 656 69249 I Email  elvinas.piliponis at barclays.com<mailto:elvinas.piliponis at barclays.com>
Barclays, GreenHall,  Upes g. 21, Vilnius, Lithuania LT-081218

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