Hi,
We have a cluster whose common storage is a gluster volume consisting of
4 bricks residing on 2 servers (more details at bottom).? I have been
cleaning out some unneeded files and noticed that most of them came off
one brick.? When I tried to issue a rebalance I received the following error
[root at mseas-data2 glusterfs]# gluster volume rebalance data-volume start
volume rebalance: data-volume: failed: Rebalance on data-volume is
already started
However, when I checked the volume status I didn't see any rebalance
[root at mseas-data2 glusterfs]# gluster volume status
Status of volume: data-volume
Gluster process???????????????????????????? TCP Port RDMA Port? Online? Pid
------------------------------------------------------------------------------
Brick mseas-data2:/mnt/brick1?????????????? 49154 0????????? Y?????? 21269
Brick mseas-data2:/mnt/brick2?????????????? 49155 0????????? Y?????? 21288
Brick mseas-data3:/export/sda/brick3??????? 49153 0????????? Y?????? 19514
Brick mseas-data3:/export/sdc/brick4??????? 49154 0????????? Y?????? 19533
Task Status of Volume data-volume
------------------------------------------------------------------------------
There are no active volume tasks
But if? I use ps, I think I see a possible rebalance process
root???? 15984? 0.3? 0.1 3766880 99756 ??????? Ssl?? 2020 734:53
/usr/sbin/glusterfs -s localhost --volfile-id rebalance/data-volume
--xlator-option *dht.use-readdirp=yes --xlator-option
*dht.lookup-unhashed=yes --xlator-option *dht.assert-no-child-down=yes
--xlator-option *replicate*.data-self-heal=off --xlator-option
*replicate*.metadata-self-heal=off --xlator-option
*replicate*.entry-self-heal=off --xlator-option *dht.readdir-optimize=on
--xlator-option *dht.rebalance-cmd=5 --xlator-option
*dht.node-uuid=c1110fd9-cb99-4ca1-b18a-536a122d67ef --xlator-option
*dht.commit-hash=4197750498 --socket-file
/var/run/gluster/gluster-rebalance-c162161e-2a2d-4dac-b015-f31fd89ceb18.sock
--pid-file
/var/lib/glusterd/vols/data-volume/rebalance/c1110fd9-cb99-4ca1-b18a-536a122d67ef.pid
-l /var/log/glusterfs/data-volume-rebalance.log
I have 2 questions
1. Is the process I found a gluster rebalance process?
2. Is it safe to simply kill the process?? Will I need to clean-up some
additional files (e.g. socket files associated with this process)?
Thanks
--
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Pat Haley Email: phaley at mit.edu
Center for Ocean Engineering Phone: (617) 253-6824
Dept. of Mechanical Engineering Fax: (617) 253-8125
MIT, Room 5-213 http://web.mit.edu/phaley/www/
77 Massachusetts Avenue
Cambridge, MA 02139-4301
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