Hi Ralph, We are indeed running in a 64 bit JVM. Thanks for the tip. Anyway, as soon as we discover what is causing this problem, I will feedback to this list!!
Robby -----Oorspronkelijk bericht----- Van: Ralph Goers [mailto:[EMAIL PROTECTED] Verzonden: woensdag, mei 2007 9:06 Aan: [email protected] Onderwerp: Re: Problem with tuning JVM (high CPU load) Robby Pelssers wrote: > > Hi all, > > we have cocoon2.1.10 running on a solaris(OS version5.8). The server > has 16G of memory and 2 processors (sparcv9 processors operating at > 900 MHz). Cocoon is running on tomcat/4.1.24. > > After a while we see our CPU increasing to about 94% and the system > becomes non-responsive. Could anybody point to what we look for? We > can't trace the problem back from the tomcat loggings. > > Cheers, > Robby Pelssers > Are you running in a 64 bit JVM? If not, then you aren't using much of that 16G. However, I doubt the amount of memory has much to do with this. I experienced something similar to this a year and a half ago. Periodically a thread would go into a loop. We had several problems that made the problem diagnosis difficult. The way our operations folks handled this was they wrote scripts that were able to detect when a cpu suddenly spiked and when that happened they immediately did a kill -3 to get a java dump and then killed the application and restarted it. Once the other problems were fixed it was easy to tell what the real problem was as that stack trace always showed up in the thread dump. HTH Ralph --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
