Weblogic 12.1.3 - Some Managed Servers Showing "Running" State, But "Not Reachable" Health Status

(Doc ID 2368636.1)

Last updated on MARCH 05, 2018

Applies to:

Oracle WebLogic Server - Version 12.1.3.0.0 and later
Information in this document applies to any platform.

Symptoms

Encountered an issue in Weblogic 12.1.3 environment where it was seen randomly that the Managed Servers showed a Health status of 'Not Reachable'.
The Managed servers showed as Running, but the 'Health Status' was not showing properly.
There were not all managed servers affected, just some. This issue was preventing to deploy applications to the affected managed servers. Also, the nodemanagers for all hosts were reporting 'Reachable'.

Changes

 

Cause

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