[Ocfs2-users] No space left on the device

[Aravind Divakaran]

Hi Tao,

> Hi Aravind,
>
> Aravind Divakaran wrote:
>> Hi All,
>>
>> I have already sent one mail regarding the space issue i am facing with
>> my
>> ocfs filesystem. As mentioned in the below link it is an issue related
>> to
>> free space fragmentation.
>>
>> http://oss.oracle.com/bugzilla/show_bug.cgi?id=1189
>>
>> I have seen a patch for stealing extent allocation which was there is
>> 2.6.34-rc1 kernel. So i compiled my new kernel and installed on my
>> system.
>>
>> Below is my ocfs details on my system
>>
>> #modinfo ocfs2
>>
>> filename:       /lib/modules/2.6.34-rc1/kernel/fs/ocfs2/ocfs2.ko
>> license:        GPL
>> author:         Oracle
>> version:        1.5.0
>> description:    OCFS2 1.5.0
>> srcversion:     A8B69947E8FF56D74858993
>> depends:        jbd2,ocfs2_stackglue,quota_tree,ocfs2_nodemanager
>> vermagic:       2.6.34-rc1 SMP mod_unload modversions
>>
>> This is my stat_sysdir.sh output
>>
>> http://pastebin.com/RZH9DkTk
>>
>> Can anyone help me how to resolve this, please as the problem occurs on
>> production mail server with 3000 emailid.
> I just checked your stat_sysdir output. It isn't caused by extent block
> alloc actually. So the patch doesn't work for you. Yes, the problem you
> meet is fragmentation issue, but the root cause is that inode_alloc
> can't allocate any more inodes(a little different from 1189).
>
> I am now working on discontiguous block group. It will resolve your
> issue I think. Hope it can be get into mainline in 2.6.35.
>
> Regards,
> Tao
>

For my previous mail i got reply from you

"Another way is that you can cp the file to another volume, remove it and
then cp back. It should be contiguous enough."

As mentioned in the 1189

"However, reducing the slot count by 1 (to 4) may not be enough as it does
not
have much contiguous space. It may work. But reducing it by 2 will
definitely work.

Umount the volume on all nodes and run:
# tunefs.ocfs2 -N 3 /dev/sda1

Run fsck.ocfs2 for sanity checking."

Will anyone of the above solution will temporary solve my problem.

Rgds,

Aravind M D