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

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(a)gmail.com <mailto:saturnism@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(a)hotmail.com <mailto:an1310@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(a)lists.jboss.org <mailto:infinispan-dev-bounces@lists.jboss.org> [mailto:infinispan-dev-bounces@lists.jboss.org <mailto:infinispan-dev-bounces@lists.jboss.org>] On Behalf Of Radim Vansa Sent: Friday, October 11, 2013 8:41 AM To: infinispan-dev(a)lists.jboss.org <mailto:infinispan-dev@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(a)redhat.com <mailto:rvansa@redhat.com>> JBoss DataGrid QA _______________________________________________ infinispan-dev mailing list infinispan-dev(a)lists.jboss.org <mailto:infinispan-dev@lists.jboss.org> https://lists.jboss.org/mailman/listinfo/infinispan-dev _______________________________________________ infinispan-dev mailing list infinispan-dev(a)lists.jboss.org <mailto:infinispan-dev@lists.jboss.org> https://lists.jboss.org/mailman/listinfo/infinispan-dev _______________________________________________ infinispan-dev mailing list infinispan-dev(a)lists.jboss.org <mailto:infinispan-dev@lists.jboss.org> https://lists.jboss.org/mailman/listinfo/infinispan-dev _______________________________________________ infinispan-dev mailing list infinispan-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/infinispan-dev