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

Jason Edgecombe jason@rampaginggeek.com
Tue, 19 Apr 2011 20:23:58 -0400


On 04/18/2011 08:57 PM, Jeffrey Altman wrote:
> The windows client does not have this problem.
> -----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.html)
>>> I asked about the client -daemons flag.
>> Reviewing your original post, it has occurred to me that your problem could be a symptom of an issue a number of sites are seeing with callback breaks. Essentially, it is possible for the thread in client that handles incoming network traffic to hang whilst handling a callback break. If this happens, 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 your test environment, it would be very interesting to know whether you still see these problems.
> Hi Simon,
> Where I get more info on the callback break break problem? Does this
> affect windows clients? I'm wondering if we might be having this problem
> at my work.
> Thanks,
> Jason
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