Supratim Deka created HDDS-1783:
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Summary: Latency metric for applyTransaction in
ContainerStateMachine
Key: HDDS-1783
URL: https://issues.apache.org/jira/browse/HDDS-1783
Project: Hadoop Distributed Data Store
Issue Type: Improvement
Components: Ozone Datanode
Reporter: Supratim Deka
applyTransaction is invoked from the Ratis pipeline and the
ContainerStateMachine
uses a async executor to complete the task.
We require a latency metric to track the performance of log apply operations in
the state machine. This will measure the end-to-end latency of apply which
includes the queueing delay in the executor queues. Combined with the latency
measurement in HddsDispatcher, this will be an indicator if the executors are
overloaded.
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