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From Christian Posta <christian.po...@gmail.com>
Subject Re: ActiveMQ crashes frequently
Date Tue, 28 May 2013 22:02:35 GMT
Sounds like there's multiple issues...
You're journal files aren't being cleaned up, AND you're getting the Sync
exception?
You get the sync exception on local disk mount? Or just NFS?

If the journals aren't being cleaned up, are your consumers properly
ack'ing messages?


On Tue, May 28, 2013 at 2:42 PM, fenbers <Mark.Fenbers@noaa.gov> wrote:

>
>
>
>
>
>     I would LOVE to help you help me!&nbsp; But I have no idea how to go
>     about making a test case.&nbsp; If you could drop some hints in this
>     regard, I might be able to produce one.
>
>     My ActiveMQ issues seem to be related to network slowness, which we
>     are diagnosing separately.&nbsp; Or maybe it is the other way around,
>     where ActiveMQ problems are causing network sluggishness.&nbsp; Either
>     way, there seems to be a correlation, except that when network
>     responsiveness improves, ActiveMQ does not.
>
>     The problem I'm having with AMQ is progressive, which is even more
>     puzzling, because we are not adding to the number of messages that
>     AMQ has to handle.&nbsp; Today, we were up to 191 undeleted db-NNN.log
>     files in the database directory before I stopped AMQ and deleted
>     them.&nbsp;&nbsp; NNN was up to 451, so 260 files had been cleaned up
> by AMQ's
>     automatic processes...
>
>     Will log files assist you in helping me?&nbsp; I have TRACE level
>     messages turned on, so they are quite large.
>
>     Mark
>
>     On 5/28/2013 5:22 PM, rajdavies [via
>       ActiveMQ] wrote:
>
>      Hi Mark,
>
>
>       could you produce a test case for your problem - it would help us
>       identify the problem a lot quicker
>
>
>       thanks,
>
>
>       Rob
>
>       On 30 Apr 2013, at 16:40, fenbers &lt; [hidden email] &gt;
>       wrote:
>
>
>         &gt; Zagan wrote
>
>         &gt;&gt; Can you please check if your .log files in the /data
>         directory are cleaned
>
>         &gt;&gt; up? On basis of the information I suppose this
>         behaviour is due to a
>
>         &gt;&gt; misconfiguration of your clients.
>
>         &gt;&gt; If this is the case often broken log file cleanup is a
>         symptom.
>
>         &gt;
>         &gt; I get the same error as brought up in this thread (KahaDB
>         failed to store to
>
>         &gt; Journal). &nbsp;And yes, I also have a problem with the
> numbered
>         .log files not
>
>         &gt; all getting cleaned up (most files are removed
>         appropriately). &nbsp;I have
>
>         &gt; suspected a client configuration problem for a long time,
>         but can't figure
>
>         &gt; out what's wrong -- even with TRACE logging turned on.
> &nbsp;In
>         the meantime, I
>
>         &gt; have to cope with ActiveMQ crashing (i.e., shutting itself
>         down) about every
>
>         &gt; two days. &nbsp;The logs point to a disk storage problem, but
> I
>         have plenty of
>
>         &gt; space, so that's not the issue! &nbsp;I've tried a couple of
>         different Linux
>
>         &gt; boxes and both local and NFS mounts, and this issue occurs
>         on both of them.
>
>         &gt;
>         &gt; I'm at a loss!! &nbsp;I'm running 5.8.0...
>
>         &gt;
>         &gt; Mark
>
>         &gt;
>         &gt;
>         &gt;
>         &gt; --
>
>         &gt; View this message in context:
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>         Nabble.com.
>
>
>
>
>
>
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>
> mark_fenbers.vcf (360 bytes) <
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>
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>
> --
> View this message in context:
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>



-- 
*Christian Posta*
http://www.christianposta.com/blog
twitter: @christianposta

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