The Data Collector won't connect to the Data Aggregator after installation

Products

• CA Infrastructure Management
• CA Performance Management

Issue/Introduction

When installing the Data Collector for the first time and you are asked to type in the Data Aggregator you accidentally type in the wrong hostname.  How can this be fixed without reinstalling? 

Environment

CAPM 3.0

Resolution

When installing the data collector for the first time, if you accidentally type in the wrong hostname the following files can be edited:

• /opt/IMDataCollector/broker/apache-activemq-5.13.1/conf/activemq.xml

<networkConnector name="da_manager" uri="static:(tcp://xxx-xxxxx:61616)" duplex="true" suppressDuplicateTopicSubscriptions="false"/>

• /opt/IMDataCollector/apache-karaf-2.4.3/etc/com.ca.im.dm.core.collector.cfg

more /opt/IMDataCollector/apache-karaf-2.4.3/etc/com.ca.im.dm.core.collector.cfg

collector-manager-id=xxx-F185263:29ddc0f4-1019-4565-8f6d-f65a0fd9ad4a

collector-manager-name=DCM0

collector-manager-tenant-id=Default Tenant

collector-manager-ip-domain-id=Default Domain

collector-manager-da-hostname=xxx-xxxxx

collector-manager-parallel-process-factor=1

collector-manager-blocking-parallel-process-factor=15

 

These are the config files for both the data collector and the ActiveMQ processes.  After correcting the highlighted entries you should now be able to successfully start the data collector