Ivan Andika created HDDS-14243:
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Summary: Simplify and document HddsDispatcher#dispatch
Key: HDDS-14243
URL: https://issues.apache.org/jira/browse/HDDS-14243
Project: Apache Ozone
Issue Type: Improvement
Reporter: Ivan Andika
Assignee: Ivan Andika
HddsDispatcher#dispatchRequest is a single long complicated function which was
called by ContainerStateMachine#dispatchCommand which are called in multiple
places
* ContainerStateMachine#writeStateMachineData: For Write Pipeline V1 when
handling writeChunk
* ContainerStateMachine#readMachineData: For Write Pipeline V1 when reading
the cached writeChunk data before replicating to the followers
* ContainerStateMachine#getStreamDataChannel : For Streaming Write Pipeline:
* ContainerStateMachine#query: For read requests (this should be unused)
Even if HddsDispatcher#dispatchRequest call KeyValueHandler#handle which will
have a defer to handler request, the complicated HddsDispatcher#dispatchRequest
and lack of documentation makes it hard to know which handler is going to be
called.
We need to simplify and document this.
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