Halting process: ("Worker died")

2017-10-23 09:54:04.982 b.s.util [ERROR] Halting process: ("Worker died")
java.lang.RuntimeException: ("Worker died")
    at backtype.storm.util$exit_process_BANG_.doInvoke(util.clj:336) [storm-core-0.10.0.jar:0.10.0]
    at clojure.lang.RestFn.invoke(RestFn.java:423) [clojure-1.6.0.jar:?]
    at backtype.storm.daemon.worker$fn__7188$fn__7189.invoke(worker.clj:536) [storm-core-0.10.0.jar:0.10.0]
    at backtype.storm.daemon.executor$mk_executor_data$fn__5523$fn__5524.invoke(executor.clj:261) [storm-core-0.10.0.jar:0.10.0]
    at backtype.storm.util$async_loop$fn__545.invoke(util.clj:489) [storm-core-0.10.0.jar:0.10.0]
    at clojure.lang.AFn.run(AFn.java:22) [clojure-1.6.0.jar:?]
    at java.lang.Thread.run(Thread.java:745) [?:1.7.0_79]
2017-10-23 09:54:04.985 b.s.util [ERROR] Halting process: ("Worker died")
java.lang.RuntimeException: ("Worker died")
    at backtype.storm.util$exit_process_BANG_.doInvoke(util.clj:336) [storm-core-0.10.0.jar:0.10.0]
    at clojure.lang.RestFn.invoke(RestFn.java:423) [clojure-1.6.0.jar:?]
    at backtype.storm.daemon.worker$fn__7188$fn__7189.invoke(worker.clj:536) [storm-core-0.10.0.jar:0.10.0]
    at backtype.storm.daemon.executor$mk_executor_data$fn__5523$fn__5524.invoke(executor.clj:261) [storm-core-0.10.0.jar:0.10.0]
    at backtype.storm.util$async_loop$fn__545.invoke(util.clj:489) [storm-core-0.10.0.jar:0.10.0]
    at clojure.lang.AFn.run(AFn.java:22) [clojure-1.6.0.jar:?]
    at java.lang.Thread.run(Thread.java:745) [?:1.7.0_79]
2017-10-23 09:54:04.985 b.s.util [ERROR] Halting process: ("Worker died")
java.lang.RuntimeException: ("Worker died")
    at backtype.storm.util$exit_process_BANG_.doInvoke(util.clj:336) [storm-core-0.10.0.jar:0.10.0]
    at clojure.lang.RestFn.invoke(RestFn.java:423) [clojure-1.6.0.jar:?]
    at backtype.storm.daemon.worker$fn__7188$fn__7189.invoke(worker.clj:536) [storm-core-0.10.0.jar:0.10.0]
    at backtype.storm.daemon.executor$mk_executor_data$fn__5523$fn__5524.invoke(executor.clj:261) [storm-core-0.10.0.jar:0.10.0]
    at backtype.storm.util$async_loop$fn__545.invoke(util.clj:489) [storm-core-0.10.0.jar:0.10.0]
    at clojure.lang.AFn.run(AFn.java:22) [clojure-1.6.0.jar:?]
    at java.lang.Thread.run(Thread.java:745) [?:1.7.0_79]
2017-10-23 09:54:04.986 b.s.util [ERROR] Halting process: ("Worker died")
java.lang.RuntimeException: ("Worker died")
    at backtype.storm.util$exit_process_BANG_.doInvoke(util.clj:336) [storm-core-0.10.0.jar:0.10.0]
    at clojure.lang.RestFn.invoke(RestFn.java:423) [clojure-1.6.0.jar:?]
    at backtype.storm.daemon.worker$fn__7188$fn__7189.invoke(worker.clj:536) [storm-core-0.10.0.jar:0.10.0]
    at backtype.storm.daemon.executor$mk_executor_data$fn__5523$fn__5524.invoke(executor.clj:261) [storm-core-0.10.0.jar:0.10.0]
    at backtype.storm.util$async_loop$fn__545.invoke(util.clj:489) [storm-core-0.10.0.jar:0.10.0]
    at clojure.lang.AFn.run(AFn.java:22) [clojure-1.6.0.jar:?]
    at java.lang.Thread.run(Thread.java:745) [?:1.7.0_79]
2017-10-23 09:54:04.986 b.s.util [ERROR] Halting process: ("Worker died")
java.lang.RuntimeException: ("Worker died")
    at backtype.storm.util$exit_process_BANG_.doInvoke(util.clj:336) [storm-core-0.10.0.jar:0.10.0]
    at clojure.lang.RestFn.invoke(RestFn.java:423) [clojure-1.6.0.jar:?]
    at backtype.storm.daemon.worker$fn__7188$fn__7189.invoke(worker.clj:536) [storm-core-0.10.0.jar:0.10.0]
    at backtype.storm.daemon.executor$mk_executor_data$fn__5523$fn__5524.invoke(executor.clj:261) [storm-core-0.10.0.jar:0.10.0]
    at backtype.storm.util$async_loop$fn__545.invoke(util.clj:489) [storm-core-0.10.0.jar:0.10.0]
    at clojure.lang.AFn.run(AFn.java:22) [clojure-1.6.0.jar:?]
    at java.lang.Thread.run(Thread.java:745) [?:1.7.0_79]
2017-10-23 09:54:04.987 b.s.util [ERROR] Halting process: ("Worker died")
java.lang.RuntimeException: ("Worker died")
    at backtype.storm.util$exit_process_BANG_.doInvoke(util.clj:336) [storm-core-0.10.0.jar:0.10.0]
    at clojure.lang.RestFn.invoke(RestFn.java:423) [clojure-1.6.0.jar:?]
    at backtype.storm.daemon.worker$fn__7188$fn__7189.invoke(worker.clj:536) [storm-core-0.10.0.jar:0.10.0]
    at backtype.storm.daemon.executor$mk_executor_data$fn__5523$fn__5524.invoke(executor.clj:261) [storm-core-0.10.0.jar:0.10.0]
    at backtype.storm.util$async_loop$fn__545.invoke(util.clj:489) [storm-core-0.10.0.jar:0.10.0]
    at clojure.lang.AFn.run(AFn.java:22) [clojure-1.6.0.jar:?]
    at java.lang.Thread.run(Thread.java:745) [?:1.7.0_79]
2017-10-23 09:54:04.987 b.s.util [ERROR] Halting process: ("Worker died")
java.lang.RuntimeException: ("Worker died")
    at backtype.storm.util$exit_process_BANG_.doInvoke(util.clj:336) [storm-core-0.10.0.jar:0.10.0]
    at clojure.lang.RestFn.invoke(RestFn.java:423) [clojure-1.6.0.jar:?]
    at backtype.storm.daemon.worker$fn__7188$fn__7189.invoke(worker.clj:536) [storm-core-0.10.0.jar:0.10.0]
    at backtype.storm.daemon.executor$mk_executor_data$fn__5523$fn__5524.invoke(executor.clj:261) [storm-core-0.10.0.jar:0.10.0]
    at backtype.storm.util$async_loop$fn__545.invoke(util.clj:489) [storm-core-0.10.0.jar:0.10.0]
    at clojure.lang.AFn.run(AFn.java:22) [clojure-1.6.0.jar:?]
    at java.lang.Thread.run(Thread.java:745) [?:1.7.0_79]

今天在Storm的程序部署调试的时候，程序一致包Work die的错误，而且从该错误中一致都找不到是什么错误，确实蛮麻烦的，后来在查看日志的时候发现了一个错误日志，跟程序是有关的：

2017-10-23 12:52:09.752 b.s.d.executor [ERROR] 
java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.Integer
    at com.bonree.project.browser.topology.source.GlobalAggregator.prepare(GlobalAggregator.java:48) ~[stormjar.jar:?]
    at storm.trident.operation.impl.ChainedAggregatorImpl.prepare(ChainedAggregatorImpl.java:52) ~[storm-core-0.10.0.jar:0.10.0]
    at storm.trident.operation.impl.GroupedAggregator.prepare(GroupedAggregator.java:55) ~[storm-core-0.10.0.jar:0.10.0]
    at storm.trident.planner.processor.AggregateProcessor.prepare(AggregateProcessor.java:54) ~[storm-core-0.10.0.jar:0.10.0]
    at storm.trident.planner.SubtopologyBolt.prepare(SubtopologyBolt.java:121) ~[storm-core-0.10.0.jar:0.10.0]
    at storm.trident.topology.TridentBoltExecutor.prepare(TridentBoltExecutor.java:232) ~[storm-core-0.10.0.jar:0.10.0]
    at backtype.storm.daemon.executor$fn__5694$fn__5707.invoke(executor.clj:757) ~[storm-core-0.10.0.jar:0.10.0]
    at backtype.storm.util$async_loop$fn__545.invoke(util.clj:477) [storm-core-0.10.0.jar:0.10.0]
    at clojure.lang.AFn.run(AFn.java:22) [clojure-1.6.0.jar:?]
    at java.lang.Thread.run(Thread.java:745) [?:1.7.0_79]
2017-10-23 12:52:09.754 b.s.d.executor [INFO] Prepared bolt __acker:(50)
2017-10-23 12:52:09.756 b.s.d.executor [INFO] Prepared bolt __acker:(8)
2017-10-23 12:52:09.757 b.s.d.executor [INFO] Prepared bolt b-2-configBolt:(92)
2017-10-23 12:52:09.758 b.s.d.executor [INFO] Prepared bolt __acker:(5)

所以抱着把这个问题解决问题试一下的心态，果然在处理这个ClassCastException问题后，重新启动集群，ok集群正常启动。
所以可以推测，发生Work die的问题，一般都是程序bug。需要多看一下日志，是否存在代码相关的异常。
具体原因：待分析。