Daryn Sharp created HADOOP-10300:
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Summary: Allowed deferred sending of call responses
Key: HADOOP-10300
URL: https://issues.apache.org/jira/browse/HADOOP-10300
Project: Hadoop Common
Issue Type: Sub-task
Components: ipc
Affects Versions: 2.0.0-alpha, 3.0.0
Reporter: Daryn Sharp
Assignee: Daryn Sharp
RPC handlers currently do not return until the RPC call completes and response
is sent, or a partially sent response has been queued for the responder. It
would be useful for a proxy method to notify the handler to not yet the send
the call's response.
An potential use case is a namespace handler in the NN might want to return
before the edit log is synced so it can service more requests and allow
increased batching of edits per sync. Background syncing could later trigger
the sending of the call response to the client.
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