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How Weblogic Consensus Leasing works

in Oracle Weblogic Server (MOSC) 1 commentAnswered

We are currently running Oracle Weblogic 12.2.1.4.0. There are two servers in a cluster. I recently patched Weblogic with the April 2023 SPB. After restarting, I started to receive the following error:

Critical subsystem DatabaseLessLeasing in partition DOMAIN has failed"

I stumbled across this Oracle Support article that says when using Coherence Leasing, Node Manager needs to be running on all servers in the cluster.

Can you please help me understand how Coherence Leasing works? Specifically, I'm thinking of a scenario where one server, say Server2 in the cluster, goes offline (for whatever reason). Wouldn't this mean that Server 1 wouldn't be able to start Weblogic and my entire system would be down until server 2 is restored?

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