Storm:ERROR o.a.s.util - Halting process: ("Worker died")

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本文详细解析了Apache Storm中PVSumBolt组件遇到的类型转换异常问题，强调了spout层与bolt层数据类型一致性的重要性。

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8216 [Thread-26-PVSumBolt-executor[6 6]] ERROR o.a.s.util - Async loop died!
java.lang.RuntimeException: java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.Integer
   at org.apache.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:485) ~[storm-core-1.1.0.jar:1.1.0]
   at org.apache.storm.utils.DisruptorQueue.consumeBatchWhenAvailable(DisruptorQueue.java:451) ~[storm-core-1.1.0.jar:1.1.0]
   at org.apache.storm.disruptor$consume_batch_when_available.invoke(disruptor.clj:73) ~[storm-core-1.1.0.jar:1.1.0]
   at org.apache.storm.daemon.executor$fn__5044$fn__5057$fn__5110.invoke(executor.clj:846) ~[storm-core-1.1.0.jar:1.1.0]
   at org.apache.storm.util$async_loop$fn__557.invoke(util.clj:484) [storm-core-1.1.0.jar:1.1.0]
   at clojure.lang.AFn.run(AFn.java:22) [clojure-1.7.0.jar:?]
   at java.lang.Thread.run(Thread.java:748) [?:1.8.0_161]
Caused by: java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.Integer
   at org.apache.storm.tuple.TupleImpl.getInteger(TupleImpl.java:116) ~[storm-core-1.1.0.jar:1.1.0]
   at com.agg.storm.pv.PVSumBolt.execute(PVSumBolt.java:32) ~[storm/:?]
   at org.apache.storm.daemon.executor$fn__5044$tuple_action_fn__5046.invoke(executor.clj:727) ~[storm-core-1.1.0.jar:1.1.0]
   at org.apache.storm.daemon.executor$mk_task_receiver$fn__4965.invoke(executor.clj:459) ~[storm-core-1.1.0.jar:1.1.0]
   at org.apache.storm.disruptor$clojure_handler$reify__4480.onEvent(disruptor.clj:40) ~[storm-core-1.1.0.jar:1.1.0]
   at org.apache.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:472) ~[storm-core-1.1.0.jar:1.1.0]
   ... 6 more
8224 [Thread-26-PVSumBolt-executor[6 6]] ERROR o.a.s.d.executor -
java.lang.RuntimeException: java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.Integer
   at org.apache.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:485) ~[storm-core-1.1.0.jar:1.1.0]
   at org.apache.storm.utils.DisruptorQueue.consumeBatchWhenAvailable(DisruptorQueue.java:451) ~[storm-core-1.1.0.jar:1.1.0]
   at org.apache.storm.disruptor$consume_batch_when_available.invoke(disruptor.clj:73) ~[storm-core-1.1.0.jar:1.1.0]
   at org.apache.storm.daemon.executor$fn__5044$fn__5057$fn__5110.invoke(executor.clj:846) ~[storm-core-1.1.0.jar:1.1.0]
   at org.apache.storm.util$async_loop$fn__557.invoke(util.clj:484) [storm-core-1.1.0.jar:1.1.0]
   at clojure.lang.AFn.run(AFn.java:22) [clojure-1.7.0.jar:?]
   at java.lang.Thread.run(Thread.java:748) [?:1.8.0_161]
Caused by: java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.Integer
   at org.apache.storm.tuple.TupleImpl.getInteger(TupleImpl.java:116) ~[storm-core-1.1.0.jar:1.1.0]
   at com.agg.storm.pv.PVSumBolt.execute(PVSumBolt.java:32) ~[storm/:?]
   at org.apache.storm.daemon.executor$fn__5044$tuple_action_fn__5046.invoke(executor.clj:727) ~[storm-core-1.1.0.jar:1.1.0]
   at org.apache.storm.daemon.executor$mk_task_receiver$fn__4965.invoke(executor.clj:459) ~[storm-core-1.1.0.jar:1.1.0]
   at org.apache.storm.disruptor$clojure_handler$reify__4480.onEvent(disruptor.clj:40) ~[storm-core-1.1.0.jar:1.1.0]
   at org.apache.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:472) ~[storm-core-1.1.0.jar:1.1.0]
   ... 6 more
8239 [Thread-26-PVSumBolt-executor[6 6]] ERROR o.a.s.util - Halting process: ("Worker died")
java.lang.RuntimeException: ("Worker died")
   at org.apache.storm.util$exit_process_BANG_.doInvoke(util.clj:341) [storm-core-1.1.0.jar:1.1.0]
   at clojure.lang.RestFn.invoke(RestFn.java:423) [clojure-1.7.0.jar:?]
   at org.apache.storm.daemon.worker$fn__5642$fn__5643.invoke(worker.clj:759) [storm-core-1.1.0.jar:1.1.0]
   at org.apache.storm.daemon.executor$mk_executor_data$fn__4863$fn__4864.invoke(executor.clj:274) [storm-core-1.1.0.jar:1.1.0]
   at org.apache.storm.util$async_loop$fn__557.invoke(util.clj:494) [storm-core-1.1.0.jar:1.1.0]
   at clojure.lang.AFn.run(AFn.java:22) [clojure-1.7.0.jar:?]
   at java.lang.Thread.run(Thread.java:748) [?:1.8.0_161]