[RATIS-2165] Do not include RaftClientRequest Message in ReadIndexRequest - ASF JIRA

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Details

Type: Improvement
Status: Resolved
Priority: Major
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 3.2.0, 3.1.2
Component/s: Linearizable Read
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None

Description

It seems that in RaftServerImpl.sendReadIndexAsync, we do not need to serialize the message of the request, because we only use request.getClientId ().

For this situation, we can provide a setMessage interface that is set to null every time sendReadAsync is called.
Or we can regenerate a RaftClientRequest without Message.

Whether this has good returns can be further discussed