Github user arunmahadevan commented on a diff in the pull request:
https://github.com/apache/storm/pull/673#discussion_r37845257
--- Diff: storm-core/src/clj/backtype/storm/daemon/common.clj ---
@@ -273,6 +293,26 @@
(metrics-consumer-register-ids storm-conf)
(get storm-conf TOPOLOGY-METRICS-CONSUMER-REGISTER))))
+;; return the fields that event logger bolt expects
+(defn eventlogger-bolt-fields []
+ [(EventLoggerBolt/FIELD_COMPONENT_ID) (EventLoggerBolt/FIELD_TS)
(EventLoggerBolt/FIELD_VALUES)]
+ )
+
+(defn add-eventlogger! [storm-conf ^StormTopology ret]
+ (let [num-executors (if (nil? (storm-conf
TOPOLOGY-EVENTLOGGER-EXECUTORS)) (storm-conf TOPOLOGY-WORKERS) (storm-conf
TOPOLOGY-EVENTLOGGER-EXECUTORS))
--- End diff --
I followed similar logic as "add-acker!". When num-executors is set to 0,
no threads would execute the task. Verified it by setting the value to 0 and no
event logger tasks ran.
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