storm因機器斷電或其他異常導致的supervisor意外終止，再次啟動時報錯：

    1. 2013-09-24 09:15:44,361 INFO  [main] daemon.supervisor (NO_SOURCE_FILE:invoke(0)) - Starting supervisor with id 74332654-8925-48a1-b67b-7eacaa52aeca at host hadoop02      2. 2013-09-24 09:15:45,246 ERROR [Thread-2] storm.event (NO_SOURCE_FILE:invoke(0)) - Error when PRocessing event      3. java.lang.RuntimeException: java.io.EOFException      4.         at backtype.storm.utils.Utils.deserialize(Utils.java:68)      5.         at backtype.storm.utils.LocalState.snapshot(LocalState.java:28)      6.         at backtype.storm.utils.LocalState.get(LocalState.java:39)      7.         at backtype.storm.daemon.supervisor$sync_processes.invoke(supervisor.clj:187)      8.         at clojure.lang.AFn.applyToHelper(AFn.java:161)      9.         at clojure.lang.AFn.applyTo(AFn.java:151)      10.         at clojure.core$apply.invoke(core.clj:603)      11.         at clojure.core$partial$fn__4070.doInvoke(core.clj:2343)      12.         at clojure.lang.RestFn.invoke(RestFn.java:397)      13.         at backtype.storm.event$event_manager$fn__3058.invoke(event.clj:24)      14.         at clojure.lang.AFn.run(AFn.java:24)      15.         at java.lang.Thread.run(Thread.java:662)      16. Caused by: java.io.EOFException      17.         at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2284)      18.         at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2753)      19.         at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:777)      20.         at java.io.ObjectInputStream.<init>(ObjectInputStream.java:277)      21.         at backtype.storm.utils.Utils.deserialize(Utils.java:63)      22.         ... 11 more      23. 2013-09-24 09:15:45,260 INFO  [Thread-2] storm.util (NO_SOURCE_FILE:invoke(0)) - Halting process: ("Error when processing an event")  

解決辦法：

刪除storm.yaml中配置的storm.local.dir指向的目錄中的supervisor和workers兩個目錄，再次啟動即可。