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Beginner

Testing CUCM upgrade offline

Have a CUCM cluster, publisher with subscriber. I was hoping to test out an upgrade from 11.5 to 12.5 by cloning publisher and upgrading offline. Upgrade completes fine but after database seems stuck in initializing, and I'm unable to add/remove devices.

 

In this scenario I've upgraded the publisher only, it cannot communicate to subscribers or IM and presence. Is the Publisher stuck in initialing until it can communicate to other servers in cluster?

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Roger Kallberg
VIP Advisor

Yes, until the entire cluster is upgraded to the same version you would not get the database replication to an operational state.

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Roger Kallberg
VIP Advisor

Yes, until the entire cluster is upgraded to the same version you would not get the database replication to an operational state.

Please rate all useful posts

View solution in original post

Thanks, makes sense, I don't have the ability to recreate the entire cluster in a lab environment so this is as far as I can take a test upgrade.

Nithin Eluvathingal
VIP Advisor

As @roger mentioned, You need to upgrade the entire cluster.

 

Use PCD for easy upgrades and migrations.

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