Github user knusbaum commented on a diff in the pull request:
https://github.com/apache/storm/pull/700#discussion_r38128803
--- Diff: storm-core/src/clj/backtype/storm/daemon/worker.clj ---
@@ -137,9 +159,14 @@
(.add remote (TaskMessage. task (.serialize
serializer tuple)))
(log-warn "Can't transfer tuple - task value is
nil. tuple type: " (pr-str (type tuple)) " and information: " (pr-str tuple)))
))))
- (local-transfer local)
- (disruptor/publish transfer-queue remoteMap)
- ))]
+ ;; each executor itself will do the self setting for the
worker's backpressure tag
+ ;; however, when the backpressure is set, the worker still
need to check whether all the executors' flag has cleared to unset worker's
backpressure
+ (if (and ((:storm-conf worker) TOPOLOGY-BACKPRESSURE-ENABLE)
(> (.population transfer-queue) high-watermark))
--- End diff --
Here too.
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