WebLogic Console Reporting Managed Server Health Not Reachable

(Doc ID 2161920.1)

Last updated on JULY 30, 2017

Applies to:

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

Symptoms

WebLogic Admin version 12.1.3.0.0 console reporting Managed Server health Not Reachable

After a restart, a domain with a large number of Managed Servers is showing health as Not Reachable. While most are showing OK, some are observed to be showing Not Reachable. And the issue is intermittent.

Within the Cloud Control EM they are reported as OK.

Note: WebLogic SOA configured domain with more than 30 Managed Servers.

Changes

Upgrade of SOA domain from 11g to 12c.

Increased the number of Managed Server from a mere 7 to more than 30 Managed Servers.

Cause

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