[Gluster-users] Memory leak in GlusterFS FUSE client

[Soumya Koduri]

On 01/11/2016 05:11 PM, Oleksandr Natalenko wrote:
> Brief test shows that Ganesha stopped leaking and crashing, so it seems
> to be good for me.
>
Thanks for checking.

> Nevertheless, back to my original question: what about FUSE client? It
> is still leaking despite all the fixes applied. Should it be considered
> another issue?

For fuse client, I tried vfs drop_caches as suggested by Vijay in an 
earlier mail. Though all the inodes get purged, I still doesn't see much 
difference in the memory footprint drop. Need to investigate what else 
is consuming so much memory here.

Thanks,
Soumya

>
> 11.01.2016 12:26, Soumya Koduri написав:
>> I have made changes to fix the lookup leak in a different way (as
>> discussed with Pranith) and uploaded them in the latest patch set #4
>>     - http://review.gluster.org/#/c/13096/
>>
>> Please check if it resolves the mem leak and hopefully doesn't result
>> in any assertion :)
>>
>> Thanks,
>> Soumya
>>
>> On 01/08/2016 05:04 PM, Soumya Koduri wrote:
>>> I could reproduce while testing deep directories with in the mount
>>> point. I root caus'ed the issue & had discussion with Pranith to
>>> understand the purpose and recommended way of taking nlookup on inodes.
>>>
>>> I shall make changes to my existing fix and post the patch soon.
>>> Thanks for your patience!
>>>
>>> -Soumya
>>>
>>> On 01/07/2016 07:34 PM, Oleksandr Natalenko wrote:
>>>> OK, I've patched GlusterFS v3.7.6 with 43570a01 and 5cffb56b (the most
>>>> recent
>>>> revisions) and NFS-Ganesha v2.3.0 with 8685abfc (most recent revision
>>>> too).
>>>>
>>>> On traversing GlusterFS volume with many files in one folder via NFS
>>>> mount I
>>>> get an assertion:
>>>>
>>>> ===
>>>> ganesha.nfsd: inode.c:716: __inode_forget: Assertion `inode->nlookup >=
>>>> nlookup' failed.
>>>> ===
>>>>
>>>> I used GDB on NFS-Ganesha process to get appropriate stacktraces:
>>>>
>>>> 1. short stacktrace of failed thread:
>>>>
>>>> https://gist.github.com/7f63bb99c530d26ded18
>>>>
>>>> 2. full stacktrace of failed thread:
>>>>
>>>> https://gist.github.com/d9bc7bc8f6a0bbff9e86
>>>>
>>>> 3. short stacktrace of all threads:
>>>>
>>>> https://gist.github.com/f31da7725306854c719f
>>>>
>>>> 4. full stacktrace of all threads:
>>>>
>>>> https://gist.github.com/65cbc562b01211ea5612
>>>>
>>>> GlusterFS volume configuration:
>>>>
>>>> https://gist.github.com/30f0129d16e25d4a5a52
>>>>
>>>> ganesha.conf:
>>>>
>>>> https://gist.github.com/9b5e59b8d6d8cb84c85d
>>>>
>>>> How I mount NFS share:
>>>>
>>>> ===
>>>> mount -t nfs4 127.0.0.1:/mail_boxes /mnt/tmp -o
>>>> defaults,_netdev,minorversion=2,noac,noacl,lookupcache=none,timeo=100
>>>> ===
>>>>
>>>> On четвер, 7 січня 2016 р. 12:06:42 EET Soumya Koduri wrote:
>>>>> Entries_HWMark = 500;
>>>>
>>>>
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