[Gluster-users] how to detach the peer off line, which carries data

[袁仲]

I have a scenes like this:


I have 3 peers.  eg. P1, P2 and P3, and each of them has 2 bricks,

e.g. P1 have 2 bricks, b1 and b2.

       P2 has 2 bricks, b3 and b4.

       P3 has 2 bricks, b5 and b6.

Based that above, I create  a volume (afr volume) like this:

b1 and b3 make up a replicate subvolume   rep-sub1

b4 and b5  make up a replicate subvolume  rep-sub2

b2 and b6  make up a replicate sub volume rep-sub3

And rep-sub1,2,3 make up a distribute volume, AND start the volume.


now, p1 has a crash or it just disconnected. I want to detach P1 and the
volume has started absolutely can’t be stop or deleted. so I did this:
 gluster peer detach host-P1.

but it does not work, the reason is that  P1 has bricks on it according to
the glusterfs error message printed on shell.


so, I comment out  the code leaded the error above, and try again. I it
really works. Its amazing. And the VM runs on the volume is all right.

BUT, this leads a big problem that  the glusterd restart failed. Both on P2
and P3, but when I remove the stuff below /var/lib/glusterfs/vols/, it
restarts success. so, I wander that there is something about volume.


my question is,

if there is a method to detach  P1 in the scenes above.

or what issue i will meet if I make it works through modify the code
source.


thanks so much.
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