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Type:
New Feature
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Status: Triage Needed
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Priority:
Normal
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Resolution: Unresolved
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Fix Version/s: None
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Component/s: Messaging/Internode
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Labels:None
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Platform:All
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Impacts:Clients
We should add early reporting of replica-side errors, since currently we just time-out requests. On normal read-write path this is not that important, but this is a protocol change we will need to improve rapid write protection for transient replication. This might have potential positive impact for regular read-write path, since we’ll be aborting queries early instead of timing them out. Can be useful for failing / going away nodes (which is also one of the changes we’re planning to implement).
We do have means for propagating error both in client protocol through <reasonmap> and in internode through FAILURE_RSP, which is true and we do not have to extend the protocol to implement this change, but this is still a change in protocol behavior, since we’ll be sending a message where we would usually silently timeout.