Ahh... this is a 1.2 "feature". :)
In 1.2, the fs does messaging (votes) for mount/umount, rename,
unlink and delete. So the said operations can fail... if a node dies
during the voting process.
We have addressed this issue in mainline. Sometime in 2.6.18/19.
As in, rename, unlink and delete now use the dlm and thus should
no longer fail on a node death.
Andrew D. Ball wrote:
>From /var/log/messages:
Jul 16 17:06:43 enva11 kernel: (29933,2):ocfs2_broadcast_vote:725 ERROR:
status
= -107
Jul 16 17:06:43 enva11 kernel: (29933,2):ocfs2_do_request_vote:798
ERROR: status
= -107
Jul 16 17:06:43 enva11 kernel: (29933,2):ocfs2_rename:1196 ERROR: status
= -107
The userspace error is a failed invocation of the mv command. I know
that the return code is not 0, but didn't capture it. I can re-run
tomorrow if that would be helpful.
Thanks for your prompt response!
Peace,
Andrew
On Tue, 2007-07-17 at 15:31 -0700, Sunil Mushran wrote:
It should behavw as you expect it to. That's the idea.
What are the errors when mkdir fails?
As in, userspace and dmesg.
Andrew D. Ball wrote:
I would really like to see the following behavior:
(1) I start with a two-node cluster, both nodes online, with an ocfs2
filesystem mounted on both nodes.
(2) I power off one of the nodes without unmounting the filesystem.
(3) The node that is still powered on continues to use the filesystem
mounted read-write with no problems.
I believe I'm seeing that the node that is still online fails to write
data to the filesystem. Specifically, mkdir(2) is failing.
This is related to having a quorum right? Can the quorum requirements
be disabled? I have a file-backed database on the filesystem and my
entire software stack will be broken if any surviving nodes cannot
update the database. Is there any reason why ignoring the quorum would
be not a good idea?
Thanks for your help,
Andrew
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