After upgrading, Data Collectors are not connecting back into the Data Aggregator

Article Id: 195949
Status: Published
Updated On: 27-07-2020 07:13
Products:
CA Infrastructure Management , CA Performance Management - Usage and Administration , DX NetOps
Issue/Introduction:

After upgrading, Data Collectors are not connecting back into the Data Aggregator

Cause:

Looking at the DC activemq log showed numerous errors relating to communications and inability to connect to DA activemq.

Environment:

Component : IM Reporting / Admin / Configuration

Resolution:

Note: This process will clear any and ALL cached polling data but it may also be the only resolution.

  1. Stop activemq (systemctl stop activemq)
  2. Stopped dcmd (systemctl stop dcmd)
  3. Ensured java processes were actually stopped (ps -ef|grep java)
  4. Start the dcmd process (systemctl start dcmd)