Data Collector status unknown

Document ID : KB000032771
Last Modified Date : 14/02/2018
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Problem:

Data Collector state is unknown and data is not being collected. Restart of the Data Collector and/or the Data Aggregator does not bring the Data Collector online. 

The data collector will appear to be running and the command /etc/ini.d/dcmd status will show running. However the Data Aggregator is still unable to connect the to the Data Collector and the status remains unknown and no data is collected. 

Resolution: 

1. Stop the Data Collector

/etc/init.d/dcmd stop 

2. Move the apache data directory. 

mv /opt/IMDataCollector/apache-karaf-2.3.0/data /opt/IMDataCollector/apache-karaf-2.3.0/data.old

3. Start the data collector

/etc/init.d/dcmd start