[Ocfs2-users] "no space left on device" related to directory limit

[Sunil Mushran]

No, this probably has to do with the fs unable to allocate inodes
because inode_alloc for its slot is full and that it is unable to
extend it because it could not find 4MB contiguous on disk. So, this
leads to a situation where one can create files on nodes that have
free space in their inode_alloc but not in others.

We are working on a solution to allow nodes to use free inodes
in inode_allocs for other slots. Hopefully will be in 1.2.9. Once
we do that, we could look into allowing users to preallocate space
in inode_allocs for all slots. This way users will be assured that
that many inodes will be created (and more if the inode_alloc
can be extended) and at the same time not worry about wasting space
if a slot or more remain unused.

If you (or anyone else) does run into this situation, run the script
stat_sysdir.sh and email me (or file a bugzilla) the output.

http://oss.oracle.com/~smushran/.debug/scripts/stat_sysdir.sh

Sunil

Brekeveld, Feite wrote:
> Hello,
>
> We have a 3-node cluster setup with ocfs2. 
>
> Since friday one of the nodes went down and would not become clustermember after a reboot because it was unable to write to the ocfs2 filesystem. Message: no space left on device.
>
> There is plenty of diskspace though.
>
> No problem whatsoever to create a file / directory on the filesystem using one of the other nodes.
>
> Today one of  the remaining 2-nodes got the same symptoms. 
>
> We started deleting some directories after which we were able to get the clusternodes up-and-running again.
>
> Is there a limit on files / directories for an ocfs2 filesystem ? I've read something about 32000 subdirectories but with 21450 directories total we weren't even close to that number.
>
> Thanks,
>
> Feite Brekeveld
>
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