Improving JBoss 5 slow startup

Question

We upgraded from JBoss 4 (and JDK 5) to JBoss 5 (and JDK 6). The problem is that the start time has gone from 1.5 minutes (on JBoss 4) to more than 4 minutes.

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Answer 1

I suppose you are starting in debug mode. This mode can be up to 3 times slower than normal mode. But there might be also a problem when switching from JDK5 to JDK6. I found this solution here on the net:

I've solved that. It's a debugging issue. I've changed my debug settings from:

wrapper.java.additional.26=-Xdebug
wrapper.java.additional.27=-Xnoagent
wrapper.java.additional.28=-Djava.compiler=NONE
wrapper.java.additional.27=-Xrunjdwp:transport=dt_socket,address=7199,server=y,suspend=n

to:

wrapper.java.additional.26=-Xdebug
wrapper.java.additional.27=-Xrunjdwp:transport=dt_socket,address=7199,server=y,suspend=n

and JBoss becomes fast again.

Hope this helps.