Month: December 2010

When using strace to attach to a process that is running many threads, use the following format for a system call summary: strace -f -c -p PID -o /tmp/outfile.strace To run a trace without a summary, which will result in voluminous amounts of space, omit the ‘-c’: strace -f -p PID -o /tmp/outfile.strace This will […]

One of the best troubleshooting tools when using tomcat is to cause the JVM to print a thread stack trace for each current thread. This will provide insight into what all threads are currently doing. Note that if you wait until there is a problem to take the first stack trace, it will be very […]