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Zero Downtime Deployment

Dear Cummunity

We have SAP NetWeaver AS Java installed with two server instances where each server instance has four server nodes.

When we deploy applications, we sometimes face the problem that afterwards on some server nodes other applications do not function correctly anymore. Therefore we introduced the policy that after each deployment the server has to be restarted. This results in some downtime of the server we is a problem for our customer.

As we have two server instances we would like to to do Zero Downtime Deployment. Thus, by our external firewall we take one instance out of the load balancer till no user is anymore on this instance, then we deploy and restart this instance. After this instance is back in the load balancer we could do the same with the other server instance.

For doing so, we have to be able to deploy applications only on one server instance. Is there a possibility to do this with SAP NetWeaver AS Java?

Best wishes,

Rolf

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