topic Re: Intermittent JBoss shutdown running Alfresco 3.0 share in Alfresco Archive

Intermittent JBoss shutdown running Alfresco 3.0 share

chrisb — Tue, 14 Apr 2009 13:17:44 GMT

I am not sure if this is an alfresco issue or not, I just mention it here in case anyone else has seen something similar, and its something I need to solve quickly!We have an Alfresco 3.0 Enterprise installation with Share setup for a document sharing application. Its a failrly standard Share setup

Re: Intermittent JBoss shutdown running Alfresco 3.0 share

mrogers — Tue, 14 Apr 2009 13:47:30 GMT

One thing it could be.

There have been problems with getting Tomcat based applications (including Alfresco) to shut down (see these forums and JIRA) and the more recent versions of Alfresco contain something called shutdown backstop that comes into play when alfresco is terminated. Basically it waits for a configurable delay and then kills the JVM if alfresco is still running.

The backstop should never fire but if it is causing you a problem you can turn it off.

Re: Intermittent JBoss shutdown running Alfresco 3.0 share

chrisb — Tue, 14 Apr 2009 14:25:13 GMT

Thanks for the info. I'll look at that next if my current approach doesn't pan out.

It looks like there are issues specific to JBoss-AS running on windows that have been collectively grouped together under the ominous title of "MysteriousShutowns" - http://www.jboss.org/community/docs/DOC-11456.

It basically looks like OS initiated shutdown messages to the JVM. I am trying a few extra JVM parameters that are supposed to help stop this happening. WIll update this post of they work.

Re: Intermittent JBoss shutdown running Alfresco 3.0 share

chrisb — Wed, 15 Apr 2009 08:32:25 GMT

Just a quick follow up to this.

We added the "-Xrs" JVM param to the JBoss "run.bat" and so far things seem to be holding up.

The link in my post further up this thread gives an explanation of what this param does, but essentially it seems that on some OS's the Sun JVM can respond to certain OS generated messages as shutdown commands. The -Xrs JVM param configures the JVM to ignore some of these OS messages.