OAV-46511: missing plugin for trail at agent on host

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Those days, after deploying a new AV agent and trying to setup a new audit trail, I started to receive a weird "OAV-46511: missing plugin for trail at agent on host" error as below:

Agent was just deployed so no reason for the agent to not include the plugins. After researching a little, I've found in MOS that there is a Bug 17958893 with similar symptom and the following resolution:

SOLUTION

1. Stop the Agent. Make sure that no processes are running from the Agent home.
2. Log into the AVDF interface and stop any Audit Trail that is using this Agent. These should already have been be stopped when the Agent was stopped, but check again.
3. Navigate to the Host tab, and select the Host named in the error. Click "Deactivate". Select it again, and click "Activate". (A new key should be created.)
4. Navigate to the Host -> Agent page, and re-download agent.jar to the target Host.
5. Create a new home (or remove all files from the old Agent home), then redeploy the Agent:
   java -jar agent.jar -d <AGENT_HOME>
6. Start the Agent.
   cd <AGENT_HOME>/bin
   ./agentctl start -k

Let's try..

$ ./agentctl stop
Stopping Agent...

Agent stopped...

Now Deactivating the host:

$ java -jar agent.jar -d /agent-audit
Checking for updates...
Agent is updating. This operation may take a few minutes. Please wait...
Agent updated successfully.
Agent installed successfully.
If deploying hostmonitor please refer to product documentation for additional installation steps.

Re-activate the host on AV and then start the agent..

$ cd /agent-audit/bin/
$ ./agentctl start -k
Enter Activation Key:
Agent started successfully.

Trying to add the audit trail again..

And it worked! Now I can proceed with my AV configuration.

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