Affichage des articles dont le libellé est jstat issue not work tomcat. Afficher tous les articles
Affichage des articles dont le libellé est jstat issue not work tomcat. Afficher tous les articles

mercredi 11 mai 2011

JStat does not work anymore with tomcat !

Those 2 last months I went into a very weird problem.I couldn't make jstat ans jps work anymore with tomcat...jps couldn't find the process, neither jstat (pid not found) ! I wanted to supervise correctly my new Confluence and Jira installations, so I couldn't just accept it !

My first thought was this was related to my unbuntu installation, as I am not very used with this linux distribution and had to learn how to move from open-jdk to the sun jdk with the "alternatives" system.
I asked atlassian for some help in the investifation of this problem after some unsuccessful tries (after some supposition like a vm issue, having tried on another linux system, confirmed it work on open-jdk jstat version...).
We spend some time to figure out what was the real problem : this is a bug in jdk1.6u23 and u24 ! It has been finally fixed in u25... Does that mean that sun... hoops... oracle doesn't make any regression test with its java tools ? Anyway I can now safely put my favorite tools in place to optimize my jvm installation and supervise it to get alerts in case of memory troubles (yes, some people do that ;) ), and add this blog post in case someone goes in the same trooble as I couldn't find anything related to this on the net!