Did you try running log4j with debug and see it reveals anything? use -Dlog4j.debug=true
On Wed, Jun 24, 2009 at 10:30 AM, Arica <[email protected]> wrote: > > Hi, Allen > > I added some threads to do the infinite loop in my source codes for > testing, > the CPU went to very high because of the inifinite loop. I tried "kill -3 " > to dump the JVM thread, but no response. I checked the log file, still no > any out put. That's why I doubt that maybe the priority of log4j is quite > low and the JVM won't assign any resource to log4j. > > Anyway, do you have any other suggestions or tips on this? Or what's the > real root cause from your point of view? > > > > Allen-54 wrote: > > > > I am doubting if you are on the right path tracking the real problem. > > > > > > > > On Wed, Jun 24, 2009 at 4:22 PM, Arica <[email protected]> wrote: > > > >> > >> Hi, buddies > >> > >> I deployed the log4j as the logging tool of my JVM. Recently, I found > >> that > >> the log4j does not work, I could not find any log output when the JVM > >> encountered the high CPU usage issue. In the case, the JVM took more > than > >> 90% CPU usage. I really want to know that my JVM is doing...I know I can > >> do > >> it through JVM thread dump. But the question is why log4j does not > output > >> any logs? I cannot find any warning from the guild to state that log4j > >> will > >> lose logs during the CPU penic. > >> > >> Do you have any idea about that? Or does log4j define any threshold of > >> CPU > >> usage? > >> > >> Thanks. > >> -- > >> View this message in context: > >> > http://www.nabble.com/High-CPU-usage-impact-to-log4j-tp24179322p24179322.html > >> Sent from the Log4j - Users mailing list archive at Nabble.com. > >> > >> > >> --------------------------------------------------------------------- > >> To unsubscribe, e-mail: [email protected] > >> For additional commands, e-mail: [email protected] > >> > >> > > > > > > -- > View this message in context: > http://www.nabble.com/High-CPU-usage-impact-to-log4j-tp24179322p24179997.html > Sent from the Log4j - Users mailing list archive at Nabble.com. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > >
