[OpenAFS] callback breaks (was Re: Tuning the -daemons.)

Jeffrey Altman jaltman@columbia.edu
Mon, 18 Apr 2011 20:57:54 -0400

The windows client does not have this problem.=0A=
-----Original Message-----
From: Jason Edgecombe
Sent: Monday, April 18, 2011 8:11 PM
To: openafs-info@openafs.org
Subject: Re: [OpenAFS] callback breaks (was  Re: Tuning the -daemons.)

On 04/18/2011 08:36 AM, Simon Wilkinson wrote:
> On 18 Apr 2011, at 12:33, Jan Johansson wrote:
>> Some time ago (in thread
>> https://lists.openafs.org/pipermail/openafs-info/2011-February/035407.ht=
>> I asked about the client -daemons flag.
> Reviewing your original post, it has occurred to me that your problem cou=
ld be a symptom of an issue a number of sites are seeing with callback brea=
ks. Essentially, it is possible for the thread in client that handles incom=
ing network traffic to hang whilst handling a callback break. If this happe=
ns, it appears to the fileserver like the client is no longer handling data=
, and you will see the errors that you have been seeing.
> We believe that this behaviour is fixed in 1.6.0pre4. If you still have y=
our test environment, it would be very interesting to know whether you stil=
l see these problems.
Hi Simon,

Where I get more info on the callback break break problem? Does this=20
affect windows clients? I'm wondering if we might be having this problem=20
at my work.

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