There is not much running in the machine other than Tomcat. The JVM actually starts fine, using about 8GB (6GB of heap, + code + threads etc) but it keeps growing. In about 2 days it runs out of memory. (The JVM process has reached more than 15GB).
-Jorge On Mon, Jun 11, 2012 at 11:40 AM, Caldarale, Charles R <chuck.caldar...@unisys.com> wrote: >> From: David kerber [mailto:dcker...@verizon.net] >> Subject: Re: Java process killed by oom-killer in Ubuntu > >> On 6/11/2012 2:30 PM, Jorge Medina wrote: >> > The machine has 16 GB of memory with no swap space. >> > The JVM was being started with -Xms and -Xmx equal to 6 GB, so I think >> > 10GB extra would be enough for anything else. > >> Does Xms/Xmx memory need to be contiguous? If so, maybe it just can't >> find a big-enough chunk? > > It needs to be contiguous in the virtual space of the process, not in RAM. > The Xmx size of heap virtual space is allocated during JVM initialization, so > if it gets past initialization, it's not a problem. The OOM killer only gets > in the game when the real memory requirements of all processes combined > exceed the amount of RAM plus swapfile. Again, it sure looks like -Xmx=6G is > too large for the system, when combined with everything else going on in that > process and the rest of the system. > > - Chuck > > > THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY > MATERIAL and is thus for use only by the intended recipient. If you received > this in error, please contact the sender and delete the e-mail and its > attachments from all computers. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
