[infinispan-dev] Is anyone else experiencing JGRP-1675

[Radim Vansa]

Huh, I've hit this independently sometime in the early spring and since 
then I have a comment about that in our configs :) But this is certainly 
not the issue now.

Radim

On 10/11/2013 03:54 PM, Dan Berindei wrote:
> I changed the default config some time ago, but I forgot to close 
> ISPN-3334.
>
>
> On Fri, Oct 11, 2013 at 4:35 PM, Ray Tsang <saturnism at gmail.com 
> <mailto:saturnism at gmail.com>> wrote:
>
>     also, don't forget this one: https://issues.jboss.org/browse/ISPN-3334
>
>
>     On Fri, Oct 11, 2013 at 9:22 AM, Erik Salter <an1310 at hotmail.com
>     <mailto:an1310 at hotmail.com>> wrote:
>
>         Hi Radim,
>
>         If you're using VMs, this may be of use.  I actually
>         experienced a JGroups
>         lockup in production with FC in decrementCredits.  What
>         happened in my case
>         is that virtualization tools had actually screwed with the
>         system clock --
>         it was reported that JBoss took ~1 year to start.
>
>         http://www.vmware.com/pdf/vmware_timekeeping.pdf
>
>         The upshot is that I had to take FC out of my stack going forward.
>
>         Erik
>
>         -----Original Message-----
>         From: infinispan-dev-bounces at lists.jboss.org
>         <mailto:infinispan-dev-bounces at lists.jboss.org>
>         [mailto:infinispan-dev-bounces at lists.jboss.org
>         <mailto:infinispan-dev-bounces at lists.jboss.org>] On Behalf Of
>         Radim Vansa
>         Sent: Friday, October 11, 2013 8:41 AM
>         To: infinispan-dev at lists.jboss.org
>         <mailto:infinispan-dev at lists.jboss.org>
>         Subject: [infinispan-dev] Is anyone else experiencing JGRP-1675
>
>         Hi,
>
>         since Infinispan moved to JGroups 3.4, we're experiencing
>         occassional
>         deadlocks in some tests - most of threads that send anything
>         over JGroups
>         are waiting in JGroups' FlowControl.decrementCredits. The
>         problem sometimes
>         goes away after several seconds, but it produces some ugly
>         spikes in our
>         througput/response time charts. Originally this affected just
>         some RadarGun
>         tests but this is appearing in some client-server tests as
>         well (we've
>         recently investigated an issue where this appeared in a
>         regular soak test).
>         I was looking into that [1] for some time but haven't really
>         figured out the
>         cause. The workaround is to set up MFC and UFC credits high
>         enough (I use
>         10M) and stuff works then. I was trying to reproduce that on
>         pure JGroups,
>         but unsuccessfully.
>         I am not asking anyone to dig into that, but I wanted to know
>         whether QA is
>         alone experiencing that or if there are more of us.
>
>         Radim
>
>         [1] https://issues.jboss.org/browse/JGRP-1675
>
>         --
>         Radim Vansa <rvansa at redhat.com <mailto:rvansa at redhat.com>>
>         JBoss DataGrid QA
>
>         _______________________________________________
>         infinispan-dev mailing list
>         infinispan-dev at lists.jboss.org
>         <mailto:infinispan-dev at lists.jboss.org>
>         https://lists.jboss.org/mailman/listinfo/infinispan-dev
>
>         _______________________________________________
>         infinispan-dev mailing list
>         infinispan-dev at lists.jboss.org
>         <mailto:infinispan-dev at lists.jboss.org>
>         https://lists.jboss.org/mailman/listinfo/infinispan-dev
>
>
>
>     _______________________________________________
>     infinispan-dev mailing list
>     infinispan-dev at lists.jboss.org <mailto:infinispan-dev at lists.jboss.org>
>     https://lists.jboss.org/mailman/listinfo/infinispan-dev
>
>
>
>
> _______________________________________________
> infinispan-dev mailing list
> infinispan-dev at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/infinispan-dev


-- 
Radim Vansa <rvansa at redhat.com>
JBoss DataGrid QA

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/infinispan-dev/attachments/20131014/e68c3945/attachment-0001.html