topic Re: Where should we run Splunk JMX for tomcat addon in Splunk Enterprise

Where should we run Splunk JMX for tomcat addon

sandeepduppalli — Mon, 06 Jul 2020 06:26:44 GMT

We have a Tomcat running and to collect JMX logs is it mandatory to have Heavy forwarder installed.?I know we cannot install JMX add-on for UF. Is there any alternative method other than having HF installed.?and catalina,localhost,and manager logs can be collected through UF right.?correct me if I am wrong

Re: Where should we run Splunk JMX for tomcat addon

isoutamo — Mon, 06 Jul 2020 07:09:11 GMT

from installation guide https://docs.splunk.com/Documentation/AddOns/released/JMX/Distributeddeployment it is said

Recommended deployment

While it is possible to use the add-on to poll remote JMX management servers, Splunk recommends installing this add-on on a heavy forwarder that is installed on the same host as the central JMX server. This deployment configuration simplifies your configuration because you can call the port locally, you do not need to use certificates, and you can use the Java version that is local to the machine.

based on that a HF is the correct place. I suppose that there are some python parts which needs HF instead of UF. Of course there are some ways to run python also on UF, but much better way is to use HF.

r. Ismo

Re: Where should we run Splunk JMX for tomcat addon

sandeepduppalli — Mon, 06 Jul 2020 07:46:02 GMT

If I have many tomcat instances running on different servers should I install Heavy Forwarder on all the servers?

Re: Where should we run Splunk JMX for tomcat addon

isoutamo — Mon, 06 Jul 2020 07:53:33 GMT

It’s up to you. It seems that some tasks are easier if those are local connections instead of remotes, but both are doable. If you have automation to install and manage HFS, then local installations are probably easier to manage in the long run. If not then centralized way could be easier as all configurations are in one place, even the first installation takes more effort.

r. Ismo

Re: Where should we run Splunk JMX for tomcat addon

sandeepduppalli — Fri, 10 Jul 2020 06:45:40 GMT

Thanks for your help. Last query, I am using UF on my client machine where Tomcat is installed and forwarding Tomcat logs to Splunk indexer and search head. How to make use of the Splunk add-on for Tomcat in this case. Do I need JMX URL here.? Should I make any configuration settings in add-on or it will just parse the logs with the defined sourcetype?

Re: Where should we run Splunk JMX for tomcat addon

isoutamo — Fri, 10 Jul 2020 12:11:39 GMT

Yes you are needing it on HF to access tomcat jmx remotely.

https://docs.splunk.com/Documentation/AddOns/released/Tomcat/Setup

just follow above instructions.

r. Ismo

Re: Where should we run Splunk JMX for tomcat addon

sandeepduppalli — Sun, 12 Jul 2020 03:54:04 GMT

Can we add multiple Tomcat URL's under the Tomcat add-on setup page.?How do we configure that?