Remove redundant success counter from AbstractSearchAsyncAction #124941
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No need to count successes explicitly, the failure count and total count contain all the necessary information here (a fact we asserted also). This removal also revealed some dead-code in the phase transition method.
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No need to count successes explicitly, the failure count and total count contain all the necessary information here (a fact we asserted also).
This removal also revealed some dead-code in the phase transition method that really only trigged in a test with invalid inputs (5 shards, but only a single shard iterator, not calling
starton the action). I removed that test, at this point it was just testing itself.The beauty of this change is that it essentially only leaves the
outstandingShardscounter as shared state across all shards. A suggested follow-up would be to do away with that as well and move to a tree of futures for the per-shard results that scales more cleanly on larger boxes and makes reasoning about the concurrency easier to the point where we can do away with all the atomic array.