On Sun, October 5, 2003 1at 2:44 am, Remy Maucherat sent the following
If there's a clear confirmation of this, a recommendation not to use Sun JDKs on Linux would be added in the release notes.
I can't say I agree with this as I have about half a dozen machines running Tomcat on a Linux 2.4 kernel along with various Sun JDKs, and I have never experienced a JVM hang in the past year.
However, none of these machines are running anything later than RedHat 7.3, a few are running Debian. All are running various almost vanilla 2.4 kernels since the 2.4.14 release. All now are running 2.4.20 or higher.
If anything, instead of recommending to stay away from Linux and Sun JDK combos, I would simply add it as a comment or FAQ until there is hard documented evidence of a specific combination which causes problems.
Yes, not much is known right now, and nothing will be documented until there's a decent proof on which configurations are a problem.
I think it will only occur with the standlone HTTP/1.1 connector (JK stresses the thread pool, and more importantly the network stack of the JVM a lot less). Also, there are hints it can be linked to the recent Redhats (ie, not 7.3).
Feel free to add useful comments to this :) (the symptoms are the connector stopping to function after about 1 day, regardless of the server load level - a stack dump will reveal all the threads are idle waiting at the right spot, but no thread listening on the server socket)
-- xxxxxxxxxxxxxxxxxxxxxxxxxxxxx R�my Maucherat Senior Developer & Consultant JBoss Group (Europe) S�RL xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
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