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How to Identify a Multicast Communication Problem in a GlassFish Cluster? (Doc ID 1313330.1)

Last updated on JUNE 03, 2021

Applies to:

Oracle GlassFish Server - Version 2.1 to 2.1.1 [Release 2.1]
Information in this document applies to any platform.

Symptoms

In this article, the following setup is used: 

A cluster "MyCluster" has been configured using two physical machines. 

Machine A consists of instance1 and instance2.
Machine B consists of instance 3 and instance 4.

The following command "list-instances" indicates that the cluster instances are running:

Cause

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In this Document
Symptoms
 1. The "asadmin get-health" Command Indicates an Ambiguous Status for Some Instances
 2. Missing "Member id" of the GMS Cluster Group in the server.log
 Instance2 server.log extract:
 Instance4 server.log extract:
Cause
Solution

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