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Re: [Wrapper-user] process not restarting when cpu at 100%
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From: Jennifer K. <jk...@si...> - 2004-05-26 15:05:26
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Sorry if I wasn't clear. What I am seeing is the processes under the wrapper just hang. They don't exit, they don't report errors, they just hang. The CPU is at 100% and has been for some time. I have on INFO level logging from the wrapper which I believe is enough to see messages about not getting enough CPU time.. I will try to reproduce w/ debug on so I can give more information. I hopefully just rolled out code to fix the CPU load issue, so that may be harder :) So on the other note, for 3.1.0 you are saying that if there is a ping timeout and the wrapper restarts, the second time there is a restart request it will not happen? This is functionality I use as well... thanks Jennifer On May 26, 2004, at 12:55 AM, Leif Mortenson wrote: > Jennifer, > Sorry. I may still be reacting to jet lag. But I am not clear on > your problem. > When you say that the "processes just stop running". Are you meaning > that the > JVM and Wrapper are stopping? If so, what are you seeing in your > wrapper.log? > Would it be possible for you to reproduce this with > wrapper.debug=true set > so that I can see what is going on a little better. > > I did just fix a problem for 3.1.1 where the JVM was not being > restarted in the > event that the JVM restarted itself due to a ping timeout. This was > a bug introduced > in 3.1.0 and does not sound like the problem you are seeing. > > When the CPU(s) is pegged at 100% that does not mean that all > processes are not > getting any CPU. If the applications are being nice then other > processes will get just > as much CPU as they need, but not any more. The total CPU ends up > pegged. > > Cheers, > Leif > > Jennifer Kolar wrote: > >> I have processes running under servicewrapper 3.1.0 that are >> regularly becoming CPU bound.. which is a separate problem in and of >> itself that I am addressing.. >> >> However, I would expect the servicewrapper to restart those >> services.... (I have seen this same problem under 3.0.5 by the way) >> >> >> What I see is that the processes just stop running- cpu is at 100% (4 >> cpu machine- all pegged).. no errors, no messages from the wrapper. >> Any ideas? >> >> How is it that wrapper code has the cpu cycles to run and know to >> restart the process if the CPU is at 100%? >> >> here are the settings in my properties files that would have any >> relationship to this at all. >> >> # How long to wait [seconds] between when the JVM says it has stopped >> # and seeing if the JVM has actually terminated. >> # A value of <0 means no timeout will be enforced. >> wrapper.jvm_exit.timeout=30 >> >> # How long to wait for the cpu [seconds] before declaring it timed-out >> # a value of <0 means no timeout will be enforced. >> wrapper.cpu.timeout=10 >> >> # How long [seconds] to allow between pings before considering the VM >> timed-out >> # Max allowed time is 3600 sec or 1 hour. >> # Must be atleast 5 seconds longer than the ping interval. >> # Must be longer than the CPU timeout. >> # A value of <0 means no timeout will be enforced. >> wrapper.ping.timeout=300 >> >> # How often [seconds] to send pings to the JVM to see if it is alive >> # Must be atleast 1 second. >> wrapper.ping.interval=5 >> >> # How long [seconds] to wait before issuing reset of JVM- only applies >> # to resets, not to initial start. >> wrapper.restart.delay=10 >> >> # Max number of times to restart(or start) invocation of JVM >> # must be atleast 1 >> # Note- this only applies to startup attempts, not anything else >> # best to make atleast 2... >> wrapper.max_failed_invocations=3 >> >> # How long [seconds] an application has to run to be considered >> successfully invoked. >> # don't leave too long- since if we restart between processing and >> have been >> # running less than this time we will only be allowed >> "max_failed_invocations" >> # to restart.. and not the usual unlimited number. >> wrapper.successful_invocation_time=2 >> >> # How long [seconds] to allow for startup before declaring it >> timed-out >> # and restarting >> # Must be longer than the CPU timeout. >> # A value of <0 means no timeout will be enforced. >> wrapper.startup.timeout=30 >> >> #whether to use system time or the internal tick timer >> # set to false to use new experimental tick timer >> # version 3.1.0 and later >> wrapper.use_system_time=FALSE >> >> # Whether you want a thread dump if the JVM failed to exit nicely >> wrapper.request_thread_dump_on_failed_jvm_exit=FALSE >> >> #Whether or not system signals should be ignored >> # If set to TRUE, CTRL-C will NOT stop the process.... >> # Only System.exit (if shutdown hooks are not disabled) and internal >> # programatic stop commands will stop the service. (and of course >> through >> # the service control panel) >> wrapper.ignore_signals=TRUE >> >> #whether or not shutdown hooks should be ignored >> # Setting this to TRUE means System.exit will result in >> # a restart. Setting it to FALSE means System.exit will be treated >> # as a purposeful shutdown and actually exit. >> wrapper.disable_shutdown_hook=TRUE >> >> >> Thanks, >> Jennifer >> >> >> >> ------------------------------------------------------- >> This SF.Net email is sponsored by: Oracle 10g >> Get certified on the hottest thing ever to hit the market... Oracle >> 10g. Take an Oracle 10g class now, and we'll give you the exam FREE. >> http://ads.osdn.com/?ad_id=3149&alloc_id=8166&op=click >> _______________________________________________ >> Wrapper-user mailing list >> Wra...@li... >> https://lists.sourceforge.net/lists/listinfo/wrapper-user >> > > > > ------------------------------------------------------- > This SF.Net email is sponsored by: Oracle 10g > Get certified on the hottest thing ever to hit the market... Oracle > 10g. Take an Oracle 10g class now, and we'll give you the exam FREE. > http://ads.osdn.com/?ad_id=3149&alloc_id=8166&op=click > _______________________________________________ > Wrapper-user mailing list > Wra...@li... > https://lists.sourceforge.net/lists/listinfo/wrapper-user |
