nickva commented on code in PR #4194:
URL: https://github.com/apache/couchdb/pull/4194#discussion_r985919864
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src/fabric/src/fabric_ring.erl:
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@@ -133,6 +140,10 @@ handle_response(Shard, Response, Workers, Responses,
RingOpts, CleanupCb) ->
#shard{range = [B, E]} = Shard,
Responses1 = [{{B, E}, Shard, Response} | Responses],
handle_response_ring(Workers1, Responses1, CleanupCb);
+ [{rmin, RMin}] when is_integer(RMin), RMin >= 1 ->
Review Comment:
Since this is an internal function, the assumption is that by now the value
of R has been checked above somewhere and this is more of an assert. It also
goes along with the pattern in this function where we'd blow up with a case
clause on unexpected `RingOpts` values.
In general we could conceive of a case where R=0 means returns even if we we
haven't completed the ring even once but it's more likely that we've just
forgot to validate its value and that's not something we meant to do.
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