Re: [Wrapper-user] mass ping time-out event

[matt p. <pie...@ho...>]

Sounds pretty compelling, thanks for the help!> Date: Mon, 4 Aug 2008 12:47:22 -0700> From: le...@ta...> To: wra...@li...> Subject: Re: [Wrapper-user] mass ping time-out event> > Matt,> There was an overflow bug with the timer fixed in version 3.1.2 which> caused the wrapper incorrectly timeout at regular fixed intervals.> Most likely this is the problem that you have encountered. Please> see the release notes for the 3.1.2 release:> http://wrapper.tanukisoftware.org/doc/english/release-notes.html#3.1.2> > Here is the bug:> http://sourceforge.net/tracker/?func=detail&aid=1014405&group_id=39428&atid=425187> > There have been a number of bugs fixed and new features implemented so> we always recommend using the latest version. If the new licensing> is an issue, 3.2.3 was pretty stable.> > If you need to continue using 3.1.1, try setting the> wrapper.use_system_time=FALSE property, it will use the new timer> which does not have the above bug. This new timer is also much more> resilient under heavy loads and is the default as of 3.2.0> http://wrapper.tanukisoftware.org/doc/english/prop-use-system-time.html> > Let me know how this works for you.> > Cheers,> Leif> > On Mon, Aug 4, 2008 at 8:40 AM, matt pierce <pie...@ho...> wrote:> > Here is the wrapper log from one of the instances (all 8 have the same> > signature, and all send the last ping between 16:40:23 and 16:40:25):> >> > INFO | jvm 1 | 2008/08/01 16:40:01 | Received a packet PING : ping> > INFO | jvm 1 | 2008/08/01 16:40:01 | Send a packet PING : ok> > INFO | jvm 1 | 2008/08/01 16:40:05 | Received a packet PING : ping> > INFO | jvm 1 | 2008/08/01 16:40:05 | Send a packet PING : ok> > INFO | jvm 1 | 2008/08/01 16:40:09 | Received a packet PING : ping> > INFO | jvm 1 | 2008/08/01 16:40:09 | Send a packet PING : ok> > INFO | jvm 1 | 2008/08/01 16:40:13 | Received a packet PING : ping> > INFO | jvm 1 | 2008/08/01 16:40:13 | Send a packet PING : ok> > INFO | jvm 1 | 2008/08/01 16:40:17 | Received a packet PING : ping> > INFO | jvm 1 | 2008/08/01 16:40:17 | Send a packet PING : ok> > INFO | jvm 1 | 2008/08/01 16:40:21 | Received a packet PING : ping> > INFO | jvm 1 | 2008/08/01 16:40:21 | Send a packet PING : ok> > INFO | jvm 1 | 2008/08/01 16:40:25 | Received a packet PING : ping> > INFO | jvm 1 | 2008/08/01 16:40:25 | Send a packet PING : ok> > INFO | jvm 1 | 2008/08/01 16:45:25 | Read Timed out. (Last Ping was> > 300000 milliseconds ago)> > INFO | jvm 1 | 2008/08/01 16:50:25 | Read Timed out. (Last Ping was> > 600000 milliseconds ago)> > INFO | jvm 1 | 2008/08/01 16:50:25 | Wrapper Manager: JVM did not> > exit. Give up.> > INFO | jvm 1 | 2008/08/01 16:50:25 | Wrapper Manager: ShutdownHook> > started> > INFO | jvm 1 | 2008/08/01 16:50:25 | WrapperManager.stop(0) called by> > thread: Wrapper-Shutdown-Hook> > INFO | jvm 1 | 2008/08/01 16:50:25 | Send a packet STOP : 0> > INFO | jvm 1 | 2008/08/01 16:50:26 | Thread, Wrapper-Shutdown-Hook,> > handling the shutdown process.> > INFO | jvm 1 | 2008/08/01 16:50:26 | calling listener.stop()> > INFO | jvm 1 | 2008/08/01 16:50:26 | WrapperStartStopApp: stop(0)> > INFO | jvm 1 | 2008/08/01 16:50:26 | WrapperStartStopApp: invoking stop> > main method> > INFO | jvm 1 | 2008/08/01 16:50:26 | WrapperStartStopApp: stop main> > method completed> > INFO | jvm 1 | 2008/08/01 16:50:26 | WrapperStartStopApp: start main> > method completed> > INFO | jvm 1 | 2008/08/01 16:50:26 | WrapperStartStopApp: stopping.> > Waiting for 2 threads to complete.> > INFO | jvm 1 | 2008/08/01 16:50:27 | WrapperStartStopApp: stopping.> > Waiting for 1 threads to complete.> > INFO | jvm 1 | 2008/08/01 16:50:28 | WrapperStartStopApp: stopping.> > Waiting for 1 threads to complete.> > INFO | jvm 1 | 2008/08/01 16:50:29 | WrapperStartStopApp: stopping.> > Waiting for 1 threads to complete.> > INFO | jvm 1 | 2008/08/01 16:50:30 | WrapperStartStopApp: stopping.> > Waiting for 1 threads to complete.> >> >> > ________________________________> > From: pie...@ho...> > To: wra...@li...> > Date: Mon, 4 Aug 2008 11:15:30 -0400> > Subject: [Wrapper-user] mass ping time-out event> >> > My company uses version 3.1.1 of the wrapper to run 6 different production> > applications spread over 4 Redhat Linux servers. We have a similar setup in> > our QA environment. All of our production applications run far under> > capacity. We never come near to utilizing all the memory allocated to the> > VM, and there is plenty free on the box. The same goes for CPU. We have> > various timeout configurations among them--the 4 webapps are tomcats with a> > 10 minute timeout.> >> > We had an event last week in which all of our wrappers simultaneously timed> > out. Within a 2 second period, 8 different wrappers on 6 different servers> > running 3 distinct applications on 2 different subnets sent one last ping to> > their respective VMs, and that was the last line of logging we saw from any> > of the wrappers until their shutdowns (with the exception of the half-way to> > time-out warning).> >> > Does anyone have an idea about what sort of event could cause this?> >> > ________________________________> > Reveal your inner athlete and share it with friends on Windows Live. Share> > now!> >> > ________________________________> > Get more from your digital life. Find out how.> > -------------------------------------------------------------------------> > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge> > Build the coolest Linux based applications with Moblin SDK & win great> > prizes> > Grand prize is a trip for two to an Open Source event anywhere in the world> > http://moblin-contest.org/redirect.php?banner_id=100&url=/> > _______________________________________________> > Wrapper-user mailing list> > Wra...@li...> > https://lists.sourceforge.net/lists/listinfo/wrapper-user> >> >> > -------------------------------------------------------------------------> This SF.Net email is sponsored by the Moblin Your Move Developer's challenge> Build the coolest Linux based applications with Moblin SDK & win great prizes> Grand prize is a trip for two to an Open Source event anywhere in the world> http://moblin-contest.org/redirect.php?banner_id=100&url=/> _______________________________________________> Wrapper-user mailing list> Wra...@li...> https://lists.sourceforge.net/lists/listinfo/wrapper-user
_________________________________________________________________
Got Game? Win Prizes in the Windows Live Hotmail Mobile Summer Games Trivia Contest
http://www.gowindowslive.com/summergames?ocid=TXT_TAGHM