[jboss-dev-forums] [Design of Clustering on JBoss (Clusters/JBoss)] - Thread dumps generated by triggers/events?

[galder.zamarreno@jboss.com]

A while back, I started a thread about generating thread dumps if a Cache TimeoutException occurred (see http://www.jboss.com/index.html?module=bb&op=viewtopic&t=123989). Another situation that comes to my mind would be when deployments take ~1 min, which are the result of a DRM.add cluster sync call hanging or just been slow.

In both situations, getting a local or remote thread dump at the right point is key to find out what it's going on. Currently, we're relying on users providing such thread dumps and if they get the timing wrong, which can easily happen, it can get quite frustrating cos they'd have to retry...etc.

Maybe this is something a monitoring tool could do? I.e. generate thread dumps in all nodes in the cluster upon certain circumstances/triggers/events? This is certainly a cross cutting concern not clustering specifically related, but it's key for Clustering in general, hence why I opened the thread here. If there's a different forum where this should be raised, please let me know.

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