[Gluster-devel] Duplicate entries and other weirdness in a 3*4 volume

[Anders Blomdell]

On 2014-07-21 13:49, Pranith Kumar Karampuri wrote:
> 
> On 07/21/2014 05:17 PM, Anders Blomdell wrote:
>> On 2014-07-21 13:36, Pranith Kumar Karampuri wrote:
>>> On 07/21/2014 05:03 PM, Anders Blomdell wrote:
>>>> On 2014-07-19 04:43, Pranith Kumar Karampuri wrote:
>>>>> On 07/18/2014 07:57 PM, Anders Blomdell wrote:
>>>>>> During testing of a 3*4 gluster (from master as of yesterday), I encountered
>>>>>> two major weirdnesses:
>>>>>>
>>>>>>      1. A 'rm -rf <some_dir>' needed several invocations to finish, each time
>>>>>>         reporting a number of lines like these:
>>>>>>               rm: cannot remove ‘a/b/c/d/e/f’: Directory not empty
>>>>>>
>>>>>>      2. After having successfully deleted all files from the volume,
>>>>>>         i have a single directory that is duplicated in gluster-fuse,
>>>>>>         like this:
>>>>>>       # ls -l /mnt/gluster
>>>>>>            total 24
>>>>>>            drwxr-xr-x 2 root root 12288 18 jul 16.17 work2/
>>>>>>            drwxr-xr-x 2 root root 12288 18 jul 16.17 work2/
>>>>>>
>>>>>> any idea on how to debug this issue?
>>>>> What are the steps to recreate? We need to first find what lead to this. Then probably which xlator leads to this.
>>>> Would a pcap network dump + the result from 'tar -c --xattrs /brick/a/gluster'
>>>> on all the hosts before and after the following commands are run be of
>>>> any help:
>>>>
>>>>     # mount -t glusterfs gluster-host:/test /mnt/gluster
>>>>     # mkdir /mnt/gluster/work2 ;
>>>>     # ls /mnt/gluster
>>>>     work2  work2
>>> Are you using ext4?
>> Yes
>>
>>> Is this on latest upstream?
>> kernel is 3.14.9-200.fc20.x86_64, if that is latest upstream, I don't know.
>> gluster is from master as of end of last week
>>
>> If there are known issues with ext4 i could switch to something else, but during
>> the last 15 years or so, I have had very little problems with ext2/3/4, thats the
>> reason for choosing it.
> The problem is afrv2 + dht + ext4 offsets. Soumya and Xavier were working on it last I heard(CCed)
Should I switch to xfs or be guinea pig for testing a fixed version?

/Anders



-- 
Anders Blomdell                  Email: anders.blomdell at control.lth.se
Department of Automatic Control
Lund University                  Phone:    +46 46 222 4625
P.O. Box 118                     Fax:      +46 46 138118
SE-221 00 Lund, Sweden