While a failover made by the changerole command some agents were not updated with active dSeries server and had continuing trying the connection to the previous one

Document ID : KB000017479
Last Modified Date : 14/02/2018
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Description:

While a failover made by the changerole command some agents were not updated with active dSeries server and had continuing trying the connection to the previous one

Solution:

Most likely, the root cause was the 2nd execution of "changerole" command before the server completed processing all the "Control Active" messaged received as part of the previous execution changerole command.
In order to avoid this situation make sure to wait till all the Agents marked as Active by the manager before issuing the "changerole" command again.