CUC 9.1.2 Upgrade failed

[Joel Lallemand]

Hi

We want to upgrade our Unity Connection running Vers. 9.1.2.11900-12 to Vers. 9.1.2.12900-11. After the "utils system switch-version" command on the CLI, we get the error "Sync after switch version failed". We already restarted the Server.

How can we fix that?

Thank you in advance.

[Manish Gogna · Accepted solution]

In case it is a cluster upgrade, before we switch the version on publisher, we need to upgrade both publisher and subscriber before attempting a switch version on publisher.
Else the switch version on publisher will fail with the above error. The recommended upgrade procedure for a cluster is:

++check the replication between the cluster and make sure that its fine.
++upgrade Publisher server, do not reboot.
++upgrade Subscriber server, do not reboot.
++switch version on publisher, wait till services start.
++switch version on subscriber, check the services list

In case it is a different scenario then please share the install logs.

HTH

Manish

[Aman Soi]

Hi Joel,

[+5] to Manish for sharing his views.

There are few bugs associated with the unity connection 9.x for the error u are getting while trying to do Switch Over but not exactly with your version.

can u please  do the steps as explained by Manish?

Lastly, do u have Pub and Sub in setup and on which server u are getting this error.

regds,

aman

[Joel Lallemand]

Hi Manish

The upgrade on cuc publisher and subscriber worked fine.

Thanks a lot for your instructions!

Kind regards

Joël

@Aman Soi: Thanks also for your input.