Data Collectors Not Connecting to the Data Aggregator

Products

• CA Infrastructure Management
• CA Performance Management - Usage and Administration
• DX NetOps

Issue/Introduction

When the Data Collectors are not connected or display a status of Unknown, this could be a result of a bad upgrade of the DC or it could be other components of Performance Management not working.

Here are some troubleshooting steps that could help reconnect your Data Collectors.

Environment

Release: CAPM 20.2

Release: CAPM 21.2

Resolution

 

 

Confirm Status of Data Collector/s

 

systemctl status dcmd

systemctl status activemq

 

 

Stop and Restart your Data Collector/s

 

systemctl stop dcmd

systemctl stop activemq

systemctl start dcmd  (this should spawn activemq automatically)

 

Stop DC, move data and Restart your Data Collector/s:

 

systemctl stop DCMD

systemctl stop activemq

ps -ef | grep java

kill -9 <PID> (if Needed)

cd /opt/IMDataCollector/apache-karaf-*/

mv data data.old

systemctl start dcmd  (this should spawn activemq automatically)

 

 

Stop/Restart your Data Collector/s and Aggregator:

Stop DC:   systemctl stop dcmd

                  systemctl stop activemq

 

Stop DA:   systemctl stop dadaemon

                   systemctl stop activemq

 

 

Start DA:   systemctl start dadaemon  (this should spawn activemq automatically)

Start DC:   systemctl start dcmd  (this should spawn activemq automatically)

 In Performance Center UI go to Admin/Data Sources/data sources and Re-sync the DA (note: re-syncing can take up to 5 min)