On 14/02/2020 21:04, James H. H. Lampert wrote:
> Ladies and Gentlemen of the Tomcat List:
> 
> We have a situation.
> 
> Earlier today, something (we don't know what) caused the Tomcat (7.0.93)
> server on our AS/400 to go crazy, producing a 70G+ catalina.out file,
> and rendering the machine generally unresponsive.
> 
> Once I was able to get a terminal session (through a reserved "console"
> Ethernet interface), I forcibly shut down the Tomcat server.
> 
> Then, after saving the enormous catalina.out file, I restarted Tomcat,
> and it brought up all contexts but the ROOT (which was having
> "persistence directory" problems, which I've passed on to our Tomcat
> specialists). I tried stopping and restarting that context, with no
> change in its behavior.
> 
> But then, I tried shutting down and restarting Tomcat again, and this
> time, it comes up, and opens the port, but no contexts start, not even
> one that's nothing more than a directory with a static web page in it!
> 
> Anybody here have any idea what could be going wrong? It seems to get
> stuck on "Deploying web application archive" and "validateMarFile."

Quick approach:
Take three thread dumps ~5s apart and compare.

Better approach:
Use a profiler

Probably excessive at this stage:
Configure for remote debugging, attach a debugger and step through the code

Mark

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