Hi XWiki users,
I have encountered a problem where after running XWiki on my tomcat server for a week, i
get an java.lang.OutOfMemoryError: PermGen space error. It appears that xwiki consumed all
the java heap space. I believe the problem may be related to unreleased DB connections
because, I noticed that everytime I try to shutdown tomcat, it hangs with xwiki deployed,
also by running "ps aux" i see the postgresql connection processes belonging to
xwiki still running. I tried deploying another application that uses hibernate +
postgresql on the same tomcat running xwiki, and upon shutting down the server, all db
connection processes from the other application gracefully terminate but not the ones from
xwiki.
My question is does anyone ever had this problem before? If so what is the solution?
Solutions that I have tried but did NOT work:
1- Increase java heap with -Xmx512m
2- Reduce the maximum and minimum idle DB connections
My system specs:
OS: Linux ubuntu kernel 2.6.20
Java: 1.6.0_05-13
Xwiki: 1.4 (binary distribution)
Posgresql: 8.2.6
Total RAM: 1Gb
Any help will be very much appreciated.
Richard
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