Thanks Guys for your comments. That will help me to upgrade the application.
So after upgrading the primary poller, will it be OK to keep the service running on Primary poller and continue to upgrade for additional poller? Or I have to stop the services on Primary poller and continue to upgrade for additional poller. And finally start the services on all Poller.
How that work? In other way after upgrading the Primary poller can I verify the primary poller got updated successfully and then move forward with additional poller upgrade, In that way if there will be any problem I have to only revert the primary poller not all additional poller.
Please suggest.
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