Github user knusbaum commented on a diff in the pull request:
https://github.com/apache/storm/pull/694#discussion_r37780767
--- Diff: storm-core/src/clj/backtype/storm/daemon/executor.clj ---
@@ -445,6 +445,32 @@
ret
))
+(defn init-batching-buffer [worker-context component-id]
+ (let [batchSize (.get_batch_size (.getComponentCommon worker-context
component-id))]
+ (if (> batchSize 1)
+ (let [consumer-ids (flatten (for [cids (vals (.getTargets
worker-context component-id))] (keys cids)))
+ consumer-task-ids (flatten (for [cid consumer-ids :when (not
(.startsWith cid "__"))] (into '() (.getComponentTasks worker-context cid))))]
+ (HashMap. (zipmap consumer-task-ids (repeatedly (count
consumer-task-ids) #(Batch. batchSize)))))
+ (HashMap.)
+ )))
+
+(defn emit-msg [out-task out-tuple overflow-buffer output-batch-buffer
transfer-fn]
+ (let [out-batch (.get output-batch-buffer out-task)]
--- End diff --
Type-hinting out-batch should also help.
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