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From Kevin Burton <bur...@spinn3r.com>
Subject Re: Queue locks up , purging it allows it to work again.
Date Mon, 20 Apr 2015 03:03:04 GMT
Also, I”ve run with and without producer flow control and that also doesn’t
impact the situation.

On Sun, Apr 19, 2015 at 8:01 PM, Kevin Burton <burton@spinn3r.com> wrote:

> Here’s the public gist of our XML config.  (it needs some comment cleanup
> but that’s that we’re running with).
>
> https://gist.github.com/burtonator/b5f4228b0f0acbf05b4e
>
> We’re running 5.10.2 .  I’ve reviewed the bugs fixed since then and
> nothing seems to apply to our situation. I would upgrade but we run with
> the memory persistence adapter and there’s a bug that was introduced in the
> 11.x series which impacts memory persistence and advisories.
>
> And I haven’t had time to fix that.
>
> We also have a fix applied that I developed to release lock contention
> during queue GC.  It’s within the realm of probability that this could have
> introduced a bug but I feel VERY confident that this is not the issue.  We
> contributed it back and there’s an outstanding pull request for this on the
> 5.10 and 5.11 branches but since I didn’t apply it against master it was
> never merged :-(
>
> I didn’t TRACE activemq but I can do this now.  Should I do this on the
> broker too?  the problem is that this is going to result in a VERY large
> log file because it takes about 30 minutes to reproduce this.
>
> In the mean time, I’m going to write a test to see if I can reproduce this
> by creating a similar situation of high load and a backlogged queue.
>
> On Sun, Apr 19, 2015 at 5:58 PM, Paul Gale <paul.n.gale@gmail.com> wrote:
>
>> What version of ActiveMQ are you using? Please send the contents of you
>> activemq.xml file plus details of your producer consumer and how they're
>> implemented.
>> Have you set the broker's logging to TRACE level prior to running your
>> experiments? If so, please attach or use pastebin.
>>
> --
>
> Founder/CEO Spinn3r.com
> Location: *San Francisco, CA*
> blog: http://burtonator.wordpress.com
> … or check out my Google+ profile
> <https://plus.google.com/102718274791889610666/posts>
> <http://spinn3r.com>
>
>


-- 

Founder/CEO Spinn3r.com
Location: *San Francisco, CA*
blog: http://burtonator.wordpress.com
… or check out my Google+ profile
<https://plus.google.com/102718274791889610666/posts>
<http://spinn3r.com>

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