It's possible that you are out of file descriptors. Find and use 'lsof' (ls open files) running it against that process. I've seen Java report OOM when it can not allocate a file because a File is nothing more than another object associated with the resource.
If this is the case you will have to figure out where you are not releasing files or sockets and resolve the problem. On Thu, 23 Sep 2004 11:19:35 -0400, Shannon Scott <[EMAIL PROTECTED]> wrote: > Greetings, > Tomcat is running, and was working fine until the memory usage went up > to 167, now none of the .jsp pages will respond ( the server hangs > forever ). > The last entries from the Catalina.out are : > java.lang.OutOfMemoryError > java.lang.OutOfMemoryError > java.lang.OutOfMemoryError > > I don't understand how the JVM could be our of memory because I set it > to use 256M. > So the last time this happened, I wrote a piece of code that would leak > some memory thinking that might be somehow related, but the tomcat > process used more than 167M when I tested that page. > > I have set the CATALINA_OPTS="-Xms64M -Xmx256M", and everything looks > right when I list the processes. > ps -elf | grep tomcat : > > 0 S tomcat4 17629 1 0 85 0 - 315671 schedu Sep21 ? > 00:00:04 /usr/java/j2sdk1.4.2_03/bin/java -Xms64M -Xmx256M. > > However, after the system shows 167M in top, tomcat no longer responds. > None of the tomcat logs are written to, and I find this in the mod_jk > log : > > [Thu Sep 23 11:00:03 2004] [jk_ajp_common.c (738)]: ERROR: can't > receive the response message from tomcat, network problems or tomcat is > down. err=-104 > [Thu Sep 23 11:00:03 2004] [jk_ajp_common.c (1137)]: Error reading > reply from tomcat. Tomcat is down or network problems. > [Thu Sep 23 11:00:03 2004] [jk_ajp_common.c (1290)]: ERROR: Receiving > from tomcat failed, recoverable operation. err=0 > [Thu Sep 23 11:00:03 2004] [jk_ajp_common.c (1309)]: sending request to > tomcat failed in send loop. err=0 > > top output : > > PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME CPU > COMMAND > 17629 tomcat4 25 0 167M 140M 12484 S 0.0 6.9 15:40 0 java > > RedHat Linux ES 3.0 > Apache 2.0.46 with ( mod_jk ) > Tomcat 4.1.24 > Sun j2sdk 1.4.2_03 > > I am confused. Any help is greatly appreciated. Please let me know if > I can provide any more informative details. > Thank you for your time. > Take Care. > Shannon > > PS > I have searched list archives and read the docs about tomcat > OutOfMemoryError, but none seem to address my problem. > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
