drcrallen commented on issue #6014: Optionally refuse to consume new data until the prior chunk is being consumed URL: https://github.com/apache/incubator-druid/pull/6014#issuecomment-406020525 This seems to cause deadlocks. Right now it looks like the "parallel merging" doesn't let the FJP know that iterating through the results is a blocking operation, so the FJP can get clogged with TransferQueue poll operations that don't match with the http client `transfer` operations, causing http and fjp threads to deadlock each other.
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