Re: [PATCH 0/2] fixes for undeletable empty directory

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On 12/05/2012 04:43 PM, Amon Ott wrote:
> Am 04.12.2012 09:09, schrieb Yan, Zheng:
>> These two patches fix MDS restart issues that may corrupt the fragstat accounting
>> and cause undeletable empty directory. These two patches, together with the patch
>> "mds: fix journaling issue regarding rstat accounting", have passed overnight
>> "fsstress + restart MDS every 120s" test. No undeletable directory was found.
>>
>> These patches are also in:
>>   git://github.com/ukernel/ceph.git wip-mds
> 
> Thank you very much for working on MDS issues, your work gave me some
> hope that our very long standing crashes at MDS failover could be fixed
> soon.
Hi,

Sorry for the delay

> 
> Right now, we have our four node test cluster running with 0.55 and your
> latest patches. Hopefully, today's stress test will work fine.
> 
> One question: with your latest patches, is a multiple MDS setup stable
> in your tests? So far, we only tried with max mds = 1. As our work load
> writes many small files, some load sharing for MDS would be nice to
> have. I would be willing to help with tests and reports, if needed.
> 
No, multiple MDS setup is still unstable.

Regards
Yan, Zheng

> Amon Ott
> 

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