[PVFS-users] mmargo

[Martin Margo]

Thank you Ron, Nathan

So, I assume if the problem is such common there should be an official 
fix/patch/new version of PVFS then? Am I correct? If so how do I get 
them.

Thank you

-Martin W. Margo
On Apr 2, 2004, at 9:17 AM, Nathan Poznick wrote:

> Thus spake Ron W. Green:
>> Martin,
>>
>> We seem to get those "failed on enqueue" quite often.  Of course, our
>> cluster is much bigger too.  I've scratched my head on this, and 
>> looked
>> at the code.  The best I can tell it is when the pvfs client attempts 
>> a
>> metadata operation to the mgr node.  I suspect that the mgr is slow in
>> responding and/or has run out of queueing space to enqueue the 
>> metadata
>> operation request (create or stat).
>>
>> Anyone on the list know if mgr has a fixed queue size?  Or can we jack
>> up the client timeouts?  Multithread mgr?
>>
>> From our testing we're quite convinced the problem lies in mgr, that 
>> it
>> can't keep up with metadata requests from the clients.
>
> Actually those messages are not referring to any sort of queuing on the
> manager at all - they refer to the pvfsdev_enqueue/dequeue functions in
> the kernel module which add/remove messages from the /dev/pvfs-req
> device.
>
>
> -- 
> Nathan Poznick <poznick at conwaycorp.net>
>
> Three may keep a secret if two of them are dead. - Benjamin Franklin
>
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