Jan Johansson j...@it.su.se wrote:
I will try my best to post what we did in the end.
After another hang I was able to get a thread dump and it matched
the dynamic vcache problem so we added -disable-dynamic-vcaches
to the cache manager and it has been trouble free since.
Thank you for the
Andrew Deason adea...@sinenomine.net wrote:
It suggests that it could be the problem, but technically
really anything holding xvcache could cause that (or anything
else causing the callback thread to hang). But certainly the
issue in this thread is the most likely cause.
If you want to
On Thu, 28 Apr 2011 10:46:25 +0200
Jan Johansson j...@it.su.se wrote:
So when reading the thread more closely I found a command that I
had missed.
cmdebug client
So this time around I tried it when the IMAP server broke and got no
response (it timed out).
Would it be correct to assume
We believe that this behaviour is fixed in 1.6.0pre4.
Do you have any idea when it was introduced?
Harald.
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On Tue, 19 Apr 2011 14:54:38 +0200 (CEST)
Harald Barth h...@kth.se wrote:
We believe that this behaviour is fixed in 1.6.0pre4.
Do you have any idea when it was introduced?
The underlying issue I think has always existed: xvcache must be
write-locked for vcache traversal, and we traverse
Maybe dynamic vcaches made this more likely to be hit, though (which
would be 1.4.10, Linux-only).
That makes sense as I think we were running something that was 1.4.9-ish
a long time without seeing any such issues.
Harald.
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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
On Mon, 7 Feb 2011 20:55:11 +0100
Jan Johansson j...@it.su.se wrote:
We had this kind of problems before.
In the first round the client made the server crash. An upgrade
of the client from Ubuntu Karmic to Ubuntu Lucid solved that.
If the client made the server crash, there was a bug in the
On Mon, 07 Feb 2011 18:02:23 +0100 (CET)
Harald Barth h...@kth.se wrote:
Long version:
We have a pretty busy IMAP server with Maildir's in AFS (yeah its
probably crazy but we have been doing it for a number of years).
Longer answer: You want to tune your servers to -daemons 128 which
Thank you for your interest in helping out here.
So I will start with the easy questions and try to get into the
kernel later.
Based on the History I believe that the problem is the
client/cache manager.
We had this kind of problems before.
In the first round the client made the server crash.
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