Follow these steps
to upgrade SIP applications.
About this task
Use the following application
upgrade procedure to install
a new version of a previously installed application without any outage.
Procedure
- Install version 1 of the application in cluster
1.
- Create cluster 2.
- Set
cluster 1 as the default cluster.
- Install version
2 of the application in cluster 2.
- Change the
default cluster at proxy to cluster 2.
- To shut
down Version 1, monitor PMI and watch for the application
session for this application to come to zero. When it is at zero or
a level you consider okay to lose, stop the application.
Results
New calls will be routed to cluster 2. Old calls
will continue
to be routed to cluster 1.