Observing on few agent deployment, where when agent is deployed, agent tree structure does not come up fully.
In addition to this, the JMX folder goes missing. although in logs, we do see agent is trying to get JMX metric from the JConsole.
Release : 20.2
Component : APM Agents
JMX Filters in jmx.yml. Changed permissions.
First suggested:
Comment this line in bundle.properties:
introscope.agent.remotejmx.system.s1.mbeanPatternsBlackList=*:*
Did not help.
With the blacklist line commented out,now trying to subscribe to MBeans, but seeing a lot of errors like:
[DEBUG] [IntroscopeAgent.JMXClient] Error creating Subscriber for attribute - CollectionUsageThreshold
Not sure if it's failing for all subscriptions.
Also:
Turn on TRACE log for JMXClient module by adding following line to IntroscopeAgent.profile:
log4j.logger.IntroscopeAgent.JMXClient=TRACE#com.wily.util.feedback.Log4JSeverityLevel, logfile