Webagents & Several httpds on a server

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Question by Ageo D. · Jan 23, 2015 at 09:31 AM ·

Webagents & Several httpds on a server

Hello All!

I am trying to install a webserver agent on a Apache webserver with 3 httpd's. The question is if I need to add several names for the web agent (according the system profile) on the file dtwsagent.ini.?

The instructions says that I need a line with the name of the agent here. However, if I have 3 httpds, should I have as well 3 different agents to monitor each one by separate?

Not so sure how this is handled, since the httpd will have only an extra line with /libdtagent.so. I don't see how Dynatrace will link the httpd to each agent here.

Maybe I am missing something.

Thank you for the help!

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Answer 1 · 2015-01-25T13:58:31Z

Answer by Sreerag M. · Jan 25, 2015 at 01:58 PM

I think installation of the web server agent is required only once.

We install once and create copy of the install folder for additional web servers instances in the same host.

-Sreerag

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Rick B. · Jan 25, 2015 at 02:13 PM 0

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That was the old recommendation, but the full install is what I'm recommending now because we've added the Web Server Master Agent as a service in Unix/Linux systems and the appropriately parametrized init script gets created with each install. Does that make sense? See the doc (Web Server Agent Configuration) for what I'm referring to.

Rick B

Answer 2 · 2015-01-23T12:48:59Z

Answer by Dave M. · Jan 23, 2015 at 12:48 PM

Hi Ageo,

Just put a single name in the dtwsagent.ini. The name will map to the master agent and there will be a child agent under it in the agent overview for each child with a unique name (I think it adds the PID to the end ). Just make sure you have a "starts with" rule in your agent mapping...

HTH,

dave

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Ageo D. · Jan 24, 2015 at 03:24 AM 0

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Hi David!

Thank you for the suggestion. However, I think I didn't explain myself completely correct. What I mean with 3 httpds, 3 different processes running simultaneously, but different, not an instance of a master one. In short, each httpds will be attending different applications. That's why I was wondering if I need to create several dtwasgent.ini. What do you think ?

Thanks!

Rick B. Ageo D. · Jan 24, 2015 at 04:47 AM 0

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Hi Ageo,

The recommended way to do this is to install the Agent 3 times in separate directories, and reference each separately in the individual httpd.conf of your Apache instances.

Rick B

Dave M. Rick B. · Jan 24, 2015 at 04:54 AM 0

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Rick,

Thanks for confirming what I suspected was the correct answer! Since there is a one-to-one mapping between dtwsagent process and dtwsagent.ini, I assumed that was the necessary approach.

dave

Webagents & Several httpds on a server

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