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Tim,

Tim Full wrote:
> Most implementations work fine with using /dev/urandom as a seed for the
> sessionid generator for Tomcat (class ManagerBase), but I have 2 instances
> that seem to cause Tomcat to hang on open of /dev/urandom.

Yeah, if you are using Linux, the /dev/urandom device sometimes stalls.
the best way to re-fill the buffers is to pound on the keyboard at the
console (which is usually inaccessible). :(

Anyhow, this isn't a Tomcat thing... it's a JRE thing. Google really is
your friend, here
(http://www.google.com/search?q=securerandom+change+random+source). You
can change the device that SecureRandom uses for gathering entropy by
modifying the "securerandom.source" property of your
JAVA_HOME/jre/lib/security/java.security file.

The comments in that file also suggest that you can use the system
property java.security.egd=[url] to override that property if you feel
like modifying your installation is a bad idea (which it probably is).

Hope that helps,
- -chris
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