Database Install/Upgrade/Opatch (MOSC)

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Rolling Patching with Zero-downtime

in Database Install/Upgrade/Opatch (MOSC) 9 commentsAnswered

We have a 2-node Oracle 19c RAC environment with non-shared grid infrastructure. Our clients connect via a balanced service across both nodes, and we want perform rolling patches by shutting down the Oracle service on each node, one at a time. We have configured the same Oracle service on both nodes. To start the rolling patching, we stop the service on one node to move all user connections to the other node. Then we apply the patch on the first node using opatchauto, it stops the database instance, apply the grid patch and brings the db instance back online. At

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