# How to monitor the process java tomcat8

**URL:** <https://discourse.sensu.io/t/how-to-monitor-the-process-java-tomcat8/690>\
**Category:** Sensu Classic (EOL)\
**Created:** [October 7, 2016, 8:24am UTC](https://discourse.sensu.io/t/how-to-monitor-the-process-java-tomcat8/690 "2016-10-07T08:24:08Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Siddharth\_Jagtiani](https://avatars.discourse-cdn.com/v4/letter/s/ee7513/32.png) [@Siddharth\_Jagtiani](https://discourse.sensu.io/u/Siddharth_Jagtiani)\
**Post date:** [October 7, 2016, 8:24am UTC](https://discourse.sensu.io/t/how-to-monitor-the-process-java-tomcat8/690/1 "2016-10-07T08:24:08Z")

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I currently have java tomcat8 running on a custom folder /opt. How do I configure check-process to monitor and check if tomcat8 is loaded ?

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**Author:** ![Siddharth\_Jagtiani](https://avatars.discourse-cdn.com/v4/letter/s/ee7513/32.png) [@Siddharth\_Jagtiani](https://discourse.sensu.io/u/Siddharth_Jagtiani)\
**Post date:** [October 7, 2016, 8:25am UTC](https://discourse.sensu.io/t/how-to-monitor-the-process-java-tomcat8/690/2 "2016-10-07T08:25:27Z")

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ps -ef reports  
usr/bin/java -Djava.util.logging.config.file=/opt/tomcat8/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djdk.tls.ephemeralDHKeySize=2048 -classpath /opt/tomcat8/bin/bootstrap.jar:/opt/tomcat8/bin/tomcat-juli.jar -Dcatalina.base=/opt/tomcat8 -Dcatalina.home=/opt/tomcat8 -Djava.io.tmpdir=/opt/tomcat8/temp org.apache.catalina.startup.Bootstrap start

> **···**
>
> On Friday, October 7, 2016 at 1:54:09 PM UTC+5:30, Siddharth Jagtiani wrote:
> 
> > I currently have java tomcat8 running on a custom folder /opt. How do I configure check-process to monitor and check if tomcat8 is loaded ?
> 
> >

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**Author:** ![Alexander\_Skiba](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.sensu.io/alexander_skiba/32/408_2.png) [@Alexander\_Skiba](https://discourse.sensu.io/u/Alexander_Skiba)\
**Post date:** [October 7, 2016, 11:46am UTC](https://discourse.sensu.io/t/how-to-monitor-the-process-java-tomcat8/690/3 "2016-10-07T11:46:35Z")

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For java processes I found configuring process checks a bit trickier than usual. For example I use the following to check for a running Elasticsearch instance.

'check-process.rb --pattern “/usr/lib/jvm/java-7-openjdk-amd64//bin/java .\* -cp :/usr/share/elasticsearch/lib/elasticsearch-1.4.5.jar”

``

You could try the following. I admit this is not very precise, but from a cursory look these seem to be the attributes most closely related to Tomcat itself in your PS output.

‘check-process.rb --pattern “/usr/bin/java \* -Dcatalina.base=/opt/tomcat8 \*”’

``

> **···**
>
> On Friday, October 7, 2016 at 10:25:27 AM UTC+2, Siddharth Jagtiani wrote:
> 
> > usr/bin/java -Djava.util.logging.config.file=/opt/tomcat8/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djdk.tls.ephemeralDHKeySize=2048 -classpath /opt/tomcat8/bin/bootstrap.jar:/opt/tomcat8/bin/tomcat-juli.jar -Dcatalina.base=/opt/tomcat8 -Dcatalina.home=/opt/tomcat8 -Djava.io.tmpdir=/opt/tomcat8/temp org.apache.catalina.startup.Bootstrap start
> 
> > 
> 
> > > I currently have java tomcat8 running on a custom folder /opt. How do I configure check-process to monitor and check if tomcat8 is loaded ?

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<div class="post-metadata">

**Author:** ![Siddharth\_Jagtiani](https://avatars.discourse-cdn.com/v4/letter/s/ee7513/32.png) [@Siddharth\_Jagtiani](https://discourse.sensu.io/u/Siddharth_Jagtiani)\
**Post date:** [October 8, 2016, 11:22am UTC](https://discourse.sensu.io/t/how-to-monitor-the-process-java-tomcat8/690/4 "2016-10-08T11:22:15Z")

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I am getting the following error

CheckProcess CRITICAL: Found 0 matching processes; cmd //usr/bin/java \* -Dcatalina.base=/opt/tomcat8 \*/

My config.json has the following check

“command”: “check-process.rb --pattern "/usr/bin/java \* -Dcatalina.base=/opt/tomcat8 \*" -W 1”,

My ps -ef | grep tomcat gives the following

ubuntu 23100 1 0 Oct07 ? 00:01:32 /usr/bin/java -Djava.util.logging.config.file=/opt/tomcat8/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djdk.tls.ephemeralDHKeySize=2048 -classpath /opt/tomcat8/bin/bootstrap.jar:/opt/tomcat8/bin/tomcat-juli.jar -Dcatalina.base=/opt/tomcat8 -Dcatalina.home=/opt/tomcat8 -Djava.io.tmpdir=/opt/tomcat8/temp org.apache.catalina.startup.Bootstrap start

> **···**
>
> On Friday, October 7, 2016 at 5:16:35 PM UTC+5:30, Alexander Skiba wrote:
> 
> > For java processes I found configuring process checks a bit trickier than usual. For example I use the following to check for a running Elasticsearch instance.
> 
> > 'check-process.rb --pattern “/usr/lib/jvm/java-7-openjdk-amd64//bin/java .\* -cp :/usr/share/elasticsearch/lib/elasticsearch-1.4.5.jar”
> 
> > ``
> 
> > 
> 
> > You could try the following. I admit this is not very precise, but from a cursory look these seem to be the attributes most closely related to Tomcat itself in your PS output.
> 
> > 
> 
> > ‘check-process.rb --pattern “/usr/bin/java \* -Dcatalina.base=/opt/tomcat8 \*”’
> 
> > ``
> 
> > 
> 
> > On Friday, October 7, 2016 at 10:25:27 AM UTC+2, Siddharth Jagtiani wrote:
> > 
> > > usr/bin/java -Djava.util.logging.config.file=/opt/tomcat8/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djdk.tls.ephemeralDHKeySize=2048 -classpath /opt/tomcat8/bin/bootstrap.jar:/opt/tomcat8/bin/tomcat-juli.jar -Dcatalina.base=/opt/tomcat8 -Dcatalina.home=/opt/tomcat8 -Djava.io.tmpdir=/opt/tomcat8/temp org.apache.catalina.startup.Bootstrap start
> 
> > >
> 
> > > > I currently have java tomcat8 running on a custom folder /opt. How do I configure check-process to monitor and check if tomcat8 is loaded ?

---

<div class="post-metadata">

**Author:** ![Siddharth\_Jagtiani](https://avatars.discourse-cdn.com/v4/letter/s/ee7513/32.png) [@Siddharth\_Jagtiani](https://discourse.sensu.io/u/Siddharth_Jagtiani)\
**Post date:** [October 10, 2016, 5:44pm UTC](https://discourse.sensu.io/t/how-to-monitor-the-process-java-tomcat8/690/5 "2016-10-10T17:44:31Z")

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Fixed it on stackoverflow

> <https://stackoverflow.com/questions/39955716/sensu-reports-found-0-matching-processes-for-tomcat8/39962119#39962119>

> **···**
>
> On Saturday, October 8, 2016 at 4:52:16 PM UTC+5:30, Siddharth Jagtiani wrote:
> 
> > I am getting the following error
> > 
> > CheckProcess CRITICAL: Found 0 matching processes; cmd //usr/bin/java \* -Dcatalina.base=/opt/tomcat8 \*/
> 
> > 
> 
> > My config.json has the following check
> 
> > 
> 
> > “command”: “check-process.rb --pattern "/usr/bin/java \* -Dcatalina.base=/opt/tomcat8 \*" -W 1”,
> 
> > 
> 
> > My ps -ef | grep tomcat gives the following
> 
> > 
> 
> > ubuntu 23100 1 0 Oct07 ? 00:01:32 /usr/bin/java -Djava.util.logging.config.file=/opt/tomcat8/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djdk.tls.ephemeralDHKeySize=2048 -classpath /opt/tomcat8/bin/bootstrap.jar:/opt/tomcat8/bin/tomcat-juli.jar -Dcatalina.base=/opt/tomcat8 -Dcatalina.home=/opt/tomcat8 -Djava.io.tmpdir=/opt/tomcat8/temp org.apache.catalina.startup.Bootstrap start
> 
> > 
> 
> > On Friday, October 7, 2016 at 5:16:35 PM UTC+5:30, Alexander Skiba wrote:
> > 
> > > For java processes I found configuring process checks a bit trickier than usual. For example I use the following to check for a running Elasticsearch instance.
> 
> > > 'check-process.rb --pattern “/usr/lib/jvm/java-7-openjdk-amd64//bin/java .\* -cp :/usr/share/elasticsearch/lib/elasticsearch-1.4.5.jar”
> 
> > > ``
> 
> > >
> 
> > > You could try the following. I admit this is not very precise, but from a cursory look these seem to be the attributes most closely related to Tomcat itself in your PS output.
> 
> > >
> 
> > > ‘check-process.rb --pattern “/usr/bin/java \* -Dcatalina.base=/opt/tomcat8 \*”’
> 
> > > ``
> 
> > >
> 
> > > On Friday, October 7, 2016 at 10:25:27 AM UTC+2, Siddharth Jagtiani wrote:
> > > 
> > > > usr/bin/java -Djava.util.logging.config.file=/opt/tomcat8/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djdk.tls.ephemeralDHKeySize=2048 -classpath /opt/tomcat8/bin/bootstrap.jar:/opt/tomcat8/bin/tomcat-juli.jar -Dcatalina.base=/opt/tomcat8 -Dcatalina.home=/opt/tomcat8 -Djava.io.tmpdir=/opt/tomcat8/temp org.apache.catalina.startup.Bootstrap start
> 
> > > >
> 
> > > > > I currently have java tomcat8 running on a custom folder /opt. How do I configure check-process to monitor and check if tomcat8 is loaded ?

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<div class="post-metadata">

**Author:** ![harryred1234](https://avatars.discourse-cdn.com/v4/letter/h/e19b73/32.png) [@harryred1234](https://discourse.sensu.io/u/harryred1234)\
**Post date:** [August 19, 2019, 5:45am UTC](https://discourse.sensu.io/t/how-to-monitor-the-process-java-tomcat8/690/6 "2019-08-19T05:45:39Z")

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