EM 12c: Enterprise Manager 12c Cloud Control Agent Blocked -Resync Fails: Exception in resync: Unable to connect to the agent at <AGENT_URL> resyncState: resync of agent failed (Doc ID 1956439.1)

Last updated on MAY 09, 2021

Applies to:

Symptoms

Enterprise Manager (EM) 12.1.0.5 Cloud Control Agent blocked  due to plugin mismatch.

Plugin mismatch found between agent and repository. Please perform an agent resync to unblock the agent. Mismatched plugins: [ The plug-in is oracle.sysman.db Version in pla inventory : 12.1.0.5.0 Version on agent : null Content type : AGENT Error code : NOT_FOUND_IN_INPUT Error Msg : This plug-in is present in the inventory for the given Management Agent, but it has not been provided in the input, The plug-in is oracle.sysman.oh Version in pla inventory : 12.1.0.3.0 Version on agent : null Content type : AGENT Error code : NOT_FOUND_IN_INPUT Error Msg : This plug-in is present in the inventory for the given Management Agent, but it has not been provided in the input, The plug-in is oracle.sysman.db Version in pla inventory : 12.1.0.5.0 Version on agent : null Content type : DISCOVERY Error code : NOT_FOUND_IN_INPUT Error Msg : This plug-in is present in the inventory for the given Management Agent, but it has not been provided in the input, The plug-in is oracle.sysman.oh Version in pla inventory : 12.1.0.3.0 Version on agent : null Content type : DISCOVERY Error code : NOT_FOUND_IN_INPUT Error Msg : This plug-in is present in the inventory for the given Management Agent, but it has not been provided in the input]

Attempting agent resync  fails with

$/OMS_HOME/bin/emcli resyncAgent -agent="host001.<DOMAIN_NAME>:3872"

Job Status for host001.<DOMAIN_NAME>:3872 resync :--
-----------------------------------------------------------------------
resyncState: IN executeCommand
resyncState: validated parameters
Starting resync RESYNC_20141124210913 for agent host001.<DOMAIN_NAME>:3872
Error communicating with the agent. Exception message - Unable to connect to the agent at https://host001.<DOMAIN_NAME>:3972/emd/main/ [host001.<DOMAIN_NAME>]. Please check agent-oms communication and try resync again.
Getting list of all the Targets to remove from the the agent - host001.<DOMAIN_NAME>:3872
Error communicating with the agent. Exception message - Unable to connect to the agent at https://host001.<DOMAIN_NAME>:3972/emd/main/ [host001.<DOMAIN_NAME>]. Please check agent-oms communication and try resync again.
Exception in resync: Unable to connect to the agent at https://host001.<DOMAIN_NAME>:3972/emd/main/ [host001.<DOMAIN_NAME>]
resyncState: resync of agent failed.

Cause

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