Stopping Node Manager Causes Whole Server Migration (Doc ID 1667639.1)

Last updated on JUNE 10, 2022

Applies to:

Symptoms

Customer has an OSB environment where Whole Server Migration has been configured. Customer's environment is:

• two RAC Database (DB) nodes.
• two managed servers configured on two hosts to use Whole Server Migration with the DB nodes controlled by a node manager (NM) on each host in an OSB cluster.

When the customer stops the managed server from the console and then stops the corresponding NM, then a whole server migration is performed for the considered managed server.

Problem has been checked in the server migration table provided by the customer : the number of rows in it always stay constant, meaning that a whole server migration will be triggered.

After comparing a lab setup logs in debug mode and customer's logs, the difference is that a thread dump is generated while the managed server is shutdown. The interesting stack is:

Cause

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