Re: Tomcat sporadic halts

2007-06-20 Thread Jacob Bunk Nielsen
"Neeraj Vora" <[EMAIL PROTECTED]> writes: > I have been using Tomcat 5.5.7 for a long time without any issues on Solaris > 10 and Oracle 9. Recently I added a couple of apps (total is under a dozen > and load is quite low) and something very strange is observed. Around once a > day a user will

Re: Problem with JVM, and Tomcat tuning

2007-06-18 Thread Jacob Bunk Nielsen
Rainer Jung <[EMAIL PROTECTED]> writes: > I agree with Mark, two of those look like coming from the Java 2D > disposer thread, and the other two - as you already observed - come from > OutOfMemory related to growableArray. A quick look into the bug database > shows, that both areas unfortunatel

Re: Problem with JVM, and Tomcat tuning

2007-06-18 Thread Jacob Bunk Nielsen
Mark Thomas <[EMAIL PROTECTED]> writes: > Jacob Bunk Nielsen wrote: >> Rainer Jung <[EMAIL PROTECTED]> writes: >> >>> Give us a look at your hotspot error files. >> >> I have put a few online at http://flof.dk/~jbn/hs_err/ [...] > > The first

Re: Problem with JVM, and Tomcat tuning

2007-06-18 Thread Jacob Bunk Nielsen
Rainer Jung <[EMAIL PROTECTED]> writes: > Give us a look at your hotspot error files. I have put a few online at http://flof.dk/~jbn/hs_err/ - now that I look at it two of them are OutOfMemory-errors. I newer had those with Java5, but Sun has accepted a bugreport about it, and we are communicatin

Re: Problem with JVM, and Tomcat tuning

2007-06-16 Thread Jacob Bunk Nielsen
Rainer Jung <[EMAIL PROTECTED]> writes: > Give us a look at your hotspot error files. I'll put a few online when I get back to work on Monday. > If double free is really the reason it won't be caused by a pure Java > Tomcat, instead it could be native libs integrated into your webapps by > JNI

Re: Problem with JVM, and Tomcat tuning

2007-06-16 Thread Jacob Bunk Nielsen
Andrew Miehs <[EMAIL PROTECTED]> writes: > What messages are you getting 'EXACTLY'? >From one of the hs_err_pid.log: # # An unexpected error has been detected by Java Runtime Environment: # # SIGSEGV (0xb) at pc=0xb7ec6e9c, pid=13753, tid=719874992 # # Java VM: Java HotSpot(TM) Server VM (1.6.0

Re: Problem with JVM, and Tomcat tuning

2007-06-16 Thread Jacob Bunk Nielsen
"Peter Crowther" <[EMAIL PROTECTED]> writes: > Jacob, are you *absolutely* sure the hardware is solid? Does anything > else ever crash? Does the same setup work on another machine (I > appreciate this is not always easy to test)? Yes, I'm quite sure the hardware is solid. Actually I'm running

Re: Problem with JVM, and Tomcat tuning

2007-06-15 Thread Jacob Bunk Nielsen
Hi Mark Thomas <[EMAIL PROTECTED]> writes: > Jacob Bunk Nielsen wrote: >> If I submit a bug report with Sun I get a reply that I should contact >> Apache because the problem seems to be triggered by Tomcat. Is anyone >> at Apache interested in those hs_err_PID.log fi

Problem with JVM, and Tomcat tuning

2007-06-15 Thread Jacob Bunk Nielsen
Hi I'm running Tomcat 6.0.13 on Sun Java6 and Linux. I upgraded from Tomcat 5.5.17 and Java5 update 9 a couple of weeks ago. I experience random crashes of the JVM on a daily basis. It simply fails with segmentation faults, double frees and similar. Are any of you experiencing similar problems? I