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.
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
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