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August 3, 2012 / doganay

Communication between the Oracle Management Service host to the Agent host is unavailable

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Problem:

Communication between the Oracle Management Service host to the Agent host is unavailable. Any functions or displayed information requiring this communication link will be unavailable. For example: deleting/configuring/adding targets, uploading metric data, or displaying Agent home page information such as Agent to Management Service Response Time (ms). Agent Operation completed with errors. For those targets that could not be saved, please go to the target’s monitoring configuration page to save them. All other targets have been saved successfully. Agent has not been unblocked.

Solution:

1)

Edit your /etc/hosts file. Do not use FQDN (Fully-Qualified-Domain-Name).

Use only hostname. Sample /etc/hosts

Before (problematic):

10.X.X.X myserver.server.tr.europe.intranet myserver

After (Works fine):

10.X.X.X myserver

and

2)

Remove grid agent software, clean up targets and install grid agent software.

  • To cleanup agent:

https://doganay.wordpress.com/2012/04/30/how-to-cleanup-agent-on-grid-control/

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