Notification on Tomcat Active HTTP Threads > 400

[kapilok <ka...@yahoo.com>]

1. Is there a JMX counter/attribute that measures active/busy HTTP threads?
2. How can I send a notification on exceeding a threshold value on this
counter?
3. Can this be achieved through some admin console? Modifying tomcat code is
not an option.

Thanks,
Kapil
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Re: Notification on Tomcat Active HTTP Threads > 400

[Christopher Schultz <ch...@christopherschultz.net>]

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Kapil,

On 7/22/2010 12:07 PM, kapilok wrote:
> 1. Is there a JMX counter/attribute that measures active/busy HTTP threads?

Yes, depending on the Tomcat version. You didn't mention yours.

> 2. How can I send a notification on exceeding a threshold value on this
> counter?

How would you like to send a notification?

> 3. Can this be achieved through some admin console? Modifying tomcat code is
> not an option.

LabmdaProbe is one of several tools that can report on the status of
request processing threads. LP is open-source, so you can even dig into
the code to see how to grab the various state values if you want to
write your own observation and notification tool.

- -chris
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