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From Louis Zipes <Louis.Zi...@gmcr.com>
Subject RE: Application hanging on Tomcat 7.0.54
Date Mon, 01 Oct 2018 12:01:53 GMT
Ok, thanks as always for the advice!  We think we figured out the user error(s) that caused
the issue but I'm now more comfortable with pulling the Thread Dumps/VisualVM quicker so we
can at least get those before we have to restart the application.

Thanks, Louis





> timeout set to 60.  Should I be looking to turn on some tracing on the
> driver?
60 what?

60 was the Pool Timeout

-----Original Message-----
From: Christopher Schultz [mailto:chris@christopherschultz.net]
Sent: Friday, September 28, 2018 6:43 PM
To: users@tomcat.apache.org
Subject: Re: Application hanging on Tomcat 7.0.54

- - - external message, proceed with caution - - -


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Louis,

On 9/27/18 09:19, Louis Zipes wrote:
> Even though these hangs are critical to find, any plugin or
> additional code that I wish to put on our PRD server have to go
> through our SOX process so it can be cumbersome.  Are any of the
> monitoring techniques that you mention 'out of the box' with
> Tomcat 7.0.54 or JDK 1.7.  I can certainly open the JCONSOLE in the
> java bin folder  but I don't have those nice Spring Boot Add-ons
> documented in say
> https://stackoverflow.com/questions/36587023/how-to-debug-log-tomcat-j
dbc-connection-pools-connections

You
>
>
don't need Spring Boot or anything like that. jconsole (or, better
yet VisualVM) can certainly observe your connection pool status as well
as runtime thread state, etc.

- -chris
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