[Gluster-users] Pending fcntl locks found!

[Keith Freedman]

I rolled back to RC2, and no longer have this problem.
i don't see these error messages, and processes that were hanging 
before are not hanging now?

I'm using single process AFR.  should I split it out and try RC4, or 
does it not seem logical that this should be a problem?

Keith

At 09:57 AM 3/16/2009, Keith Freedman wrote:
>Also, I'm wondering if this is related to the fact that I have 
>single process client/server.
>which used to be the recommended method and now is not.
>
>if I split those out, will that solve my problem?
>
>At 09:50 AM 3/16/2009, Keith Freedman wrote:
>>At 04:06 AM 3/16/2009, Vikas Gorur wrote:
>>>2009/3/14 Keith Freedman <freedman at freeformit.com>:
>>> > all of a sudden, I'm getting messages such as this:
>>> >
>>> > 2009-03-13 23:14:06 C [posix.c:709:pl_forget] posix-locks-home1: Pending
>>> > fcntl locks found!
>>> >
>>> > and some processes are hanging waiting presumably for the locks?
>>> > any way to find out what files are being locked and unlock them.
>>> > restarting gluster doesn't seem to solve the problem.
>>>
>>>Are you using any applications that hold POSIX fcntl locks? Try
>>>running the server in debug mode --- then you can find out which files
>>>are being locked/not unlocked, etc.
>>
>>well, I'm sure I am, I've no idea really, there are some php 
>>scripts which seem to hang and some python programs.
>>
>>however, this problem only manifested itself when I upgraded to rc4 
>>and the new fuse-2.7.4glfs11
>>
>>so something must be significantly different about how those (or 
>>that combination) handles locks.
>>
>>
>>Also, debug mode wont really solve the problem, cause knowing what 
>>exact file is the problem, isn't going to help because that wont 
>>really tell me how to prevent this from happening.  Clearly one 
>>side should get the lock and one should wait, rather than both 
>>servers in the replicate pair just hanging on the same file?
>>
>>in addition, ERROR mode logging should log enough related 
>>information to know this stuff (this is an enhancement request :) )
>>
>>
>>>Vikas
>>>--
>>>Engineer - Z Research
>>>http://gluster.com/
>>
>>
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>
>
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