Support Fetch v9 protocol (minimal) #778
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Test failures are unrelated, see #786 |
This commit only adds the minimal "support" for the Fetch API v9 on the protocol level, but does not implement the additional logic described by KIP-320 to better handle unclear leader elections. In particular KIP-320 allows a client to "opt-out" of the complex leader epoch validation, and at that point only changes the Fetch API to use two different error codes as replacement for the previous code indicating "metadata is stale".
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Created #818 to document what functionality Fetch V9 introduces that we don't currently support. |
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NOTE: This is a draft on top of the earlier #776, and merely here as a "intent to get this merged". Fetch v9 is needed as precondition for #713.