On Jan 16, 2014, at 3:04 PM, Bradley Rogers <bradley.rogers.engin...@gmail.com> 
wrote:

> I have an application where Tomcat under Centos linux takes about 4 minutes
> to be "online" from the time it starts.

My initial thought is that it's probably the application.  This is true most of 
the time.  Occasionally there can be JAR scanning issues though or an issue 
with entropy.  See here for more info.

  https://wiki.apache.org/tomcat/HowTo/FasterStartUp

>  i dont know what its doing but wonder if there is a way to ping something in 
> the tomcat to check status?

My first thought would be to just watch the logs (increasing the log levels if 
necessary) and see what it's doing.  If it sits for a long time in one place or 
you see no output, take a few thread dump, 10 - 15 seconds apart (kill -3 
<pid>) and investigate further.

Dan


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