Not receiving EPA Agent metrics related to Web Agent in APM Manager

Products

• CA Single Sign On Secure Proxy Server (SiteMinder)
• CA Single Sign On SOA Security Manager (SiteMinder)
• CA Single Sign-On
• SITEMINDER
• CA Single Sign On Agents (SiteMinder)

Issue/Introduction

Having installed the CA EPA Agent to collect metrics from the Web Agent on Apache.

The EPA Agent starts correctly and sends information to the APM Manager server, but there is no metric related to the Web Agent to be seen.

The following messages in the Web Agent trace show up:

[11/16/2017][18:44:09][31601][1333704448][CSmIntroscopePlugin.cpp:416][CSmIntroscopePlugin::EndRequest][][*10.0.0.1][][<agent>][/][][Request metrics sent to Introscope Server.]
[11/16/2017][18:44:09][31601][1333704448][CSmIntroscopePlugin.cpp:455][CSmIntroscopePlugin::EndRequest][][*10.0.0.1][][<agent>][/][]['x-wily-guid' header not created; Trace data not reported to Introscope Server.]

Environment

EPAgent 10.8

Resolution

Modify the IntroscopeCAPIConfig.xml file present in the Web Agent installation changing the default value epagent_threshold-in-millis from 5000 to 1 (ms), as traces will not be generated unless the requests exceed the configured epagent_threshold-in-millis value.

This is a threshold to avoid irrelevant or too many data, and may need to be adjusted (1).

The IntroscopeCAPIConfig.xml file is found under webagent/config/ folder, and it should look like:

<introscope-capi-config>
<introscope-capi-def-reference name="SiteMinder" definition-file="/{home_webagent}/config/SiteMinderPSdefs.xml"/>
<introscope-capi-def-reference name="epagent_host" value="localhost"/>
<introscope-capi-def-reference name="epagent_httpServerPort" value="8096"/>
<introscope-capi-def-reference name="epagent_networkDataPort" value="9060"/>
<introscope-capi-def-reference name="epagent_threshold-in-millis" value="1"/>
</introscope-capi-config>

Additional Information

1. Viewing Transaction Tracing