On 10/20/10 7:11 PM, Jason Britton wrote:
Thankfully when I pulled up jvisualvm on the server and issued thread dumps, even though the stacktraces for the threads did not come up within jvisualvm the thread stacktraces were dumped to stdout. So I did get thread stacktraces in my tomcat log. I won't post entire stacktraces here but almost all blocked threads seem to be stuck blocking here:- waiting to lock<0x00002aaaced306f8> (a org.apache.commons.dbcp.datasources.SharedPoolDataSource) One of my threads in runnable state has that locked - locked<0x00002aaaced306f8> (a org.apache.commons.dbcp.datasources.SharedPoolDataSource)
Looks like you are using Commons DBCP directly. What versions of Commons DBCP and Commons Pool are you running?
Phil
So I'm pretty sure I've found the thread hanging everything up.... now to take a look at the code and figure out why lock is not being released. Highly recommend trying out jvisualvm (it's in your jdk bin) if you're running 1.6.
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