After Apigee Upgradation to 4.16.09 we observed high CPU context switching and CPU interrupts on apigee zookeeper/cassandra server

Google Cloud Apigee
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After Apigee Upgradation to 4.16.09 we observed high CPU context switching and CPU interrupts on apigee zookeeper/cassandra server.

We checked with APIGEE support team they suggested to take a restart on zookeeper servers.

But No success after restart.

Still we can see high CPU context switching and CPU interrupts on zoo-keeper nodes.

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After Apigee Upgrade:

Context switching per second: More than 19 Ksps

Interrupts per second : More than 9 Ksps

Before upgrade it was normal

Context switching per second: 5-6 Ksps

Interrupts per second: 2-4 Ksps