[Lustre-discuss] MDS refuses connections (no visible reason)

[Patricia Santos Marco]

Our MDT have lustre 1.6.7, I see in this message
http://lists.lustre.org/pipermail/lustre-discuss/2009-April/010167.html that
this version have a bug that cause directory corruptions on the MDT. Can
this bug produce this kind of errors?




2009/8/17 Oleg Drokin <Oleg.Drokin at sun.com>

> Hello!
>
> On Aug 17, 2009, at 2:14 PM, Patricia Santos Marco wrote:
>
>  The last day our MDS refusing conections too. The logs are the same, and
>> we should reboot the MDS server . What's is the reason for this?
>>
>
> That means some requests from this client are still being processed and
> server has a self-preservation mechanism trying to protect itself
> from client resending same rpc (that leads to slow server processing if not
> worse) again and again and occupying
> more and more server threads.
> The hung threads either had lbug that you can see in the logs or watchdogs
> should have triggered showing what it was doing
> (also visible in logs) before clients time out.
>
> Bye,
>    Oleg
>



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