Re: [Dspace-tech] seeking help in tracking down why Tomcat is dying on us

2011-07-13 Thread Mark H. Wood
I keep a monitoring gadget like LambdaProbe (or PsiProbe) running on production Tomcat instances so I can watch what is happening to memory. It helps with tuning and sometimes diagnosis. -- Mark H. Wood, Lead System Programmer mw...@iupui.edu Asking whether markets are efficient is like

Re: [Dspace-tech] seeking help in tracking down why Tomcat is dying on us

2011-07-13 Thread Pottinger, Hardy J.
Thanks, Mark, many many moons ago you gave me this same, very helpful advice, and I've been running LambdaProbe ever since. The problem with LambdaProbe, is it requires Tomcat to function, and if Tomcat is down... ;-) Now I'm looking into getting JMX monitoring set up by my sysadmins, so they can

[Dspace-tech] seeking help in tracking down why Tomcat is dying on us

2011-07-12 Thread Pottinger, Hardy J.
Hi, I thought I'd ask the community for help debugging this one. For the past week, we've been having troubles with Tomcat dying on us. The error message in the Tomcat logs indicates that the JVM has run out of memory (snippets of log files and config files below). The system has 8GB of RAM, and

Re: [Dspace-tech] seeking help in tracking down why Tomcat is dying on us

2011-07-12 Thread Pottinger, Hardy J.
Hi, George, now that you mention it, the only thing showing up in the logs at the time of the memory error were lines about SOLR stats. I figured that was just an indication of normal usage. On the off chance these lines might help with diagnosis, I'm pasting a few below: Jul 12, 2011 9:48:19 AM