最近搭建了一个storm环境，发现在提交一个topology之后，supervisor总是会无缘无故的死掉，日志如下
[2000] the maxSleepTimeMs [60000] the maxRetries [5]
2016-04-09 16:30:05.719 b.s.event [ERROR] Error when processing event
java.lang.RuntimeException: org.apache.thrift7.transport.TTransportException: java.net.ConnectException: Connection refused
at backtype.storm.security.auth.TBackoffConnect.retryNext(TBackoffConnect.java:59) ~[storm-core-0.10.0.jar:0.10.0]
at backtype.storm.security.auth.TBackoffConnect.doConnectWithRetry(TBackoffConnect.java:51) ~[storm-core-0.10.0.jar:0.10.0]
at backtype.storm.security.auth.ThriftClient.reconnect(ThriftClient.java:103) ~[storm-core-0.10.0.jar:0.10.0]
at backtype.storm.security.auth.ThriftClient.<init>(ThriftClient.java:72) ~[storm-core-0.10.0.jar:0.10.0]
at backtype.storm.utils.NimbusClient.<init>(NimbusClient.java:74) ~[storm-core-0.10.0.jar:0.10.0]
at backtype.storm.utils.NimbusClient.getConfiguredClient(NimbusClient.java:37) ~[storm-core-0.10.0.jar:0.10.0]
at backtype.storm.utils.Utils.downloadFromMaster(Utils.java:361) ~[storm-core-0.10.0.jar:0.10.0]
at backtype.storm.daemon.supervisor$fn__7720.invoke(supervisor.clj:581) ~[storm-core-0.10.0.jar:0.10.0]
at clojure.lang.MultiFn.invoke(MultiFn.java:241) ~[clojure-1.6.0.jar:?]
at backtype.storm.daemon.supervisor$mk_synchronize_supervisor$this__7638.invoke(supervisor.clj:465) ~[storm-core-0.10.0.jar:0.10.0]
at backtype.storm.event$event_manager$fn__7258.invoke(event.clj:40) [storm-core-0.10.0.jar:0.10.0]
at clojure.lang.AFn.run(AFn.java:22) [clojure-1.6.0.jar:?]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_45]
Caused by: org.apache.thrift7.transport.TTransportException: java.net.ConnectException: Connection refused
at org.apache.thrift7.transport.TSocket.open(TSocket.java:187) ~[storm-core-0.10.0.jar:0.10.0]
at org.apache.thrift7.transport.TFramedTransport.open(TFramedTransport.java:81) ~[storm-core-0.10.0.jar:0.10.0]
at backtype.storm.security.auth.SimpleTransportPlugin.connect(SimpleTransportPlugin.java:103) ~[storm-core-0.10.0.jar:0.10.0]
at backtype.storm.security.auth.TBackoffConnect.doConnectWithRetry(TBackoffConnect.java:48) ~[storm-core-0.10.0.jar:0.10.0]
... 11 more
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method) ~[?:1.8.0_45]
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:345) ~[?:1.8.0_45]
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[?:1.8.0_45]
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[?:1.8.0_45]
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[?:1.8.0_45]
at java.net.Socket.connect(Socket.java:589) ~[?:1.8.0_45]
at org.apache.thrift7.transport.TSocket.open(TSocket.java:182) ~[storm-core-0.10.0.jar:0.10.0]
at org.apache.thrift7.transport.TFramedTransport.open(TFramedTransport.java:81) ~[storm-core-0.10.0.jar:0.10.0]
at backtype.storm.security.auth.SimpleTransportPlugin.connect(SimpleTransportPlugin.java:103) ~[storm-core-0.10.0.jar:0.10.0]
at backtype.storm.security.auth.TBackoffConnect.doConnectWithRetry(TBackoffConnect.java:48) ~[storm-core-0.10.0.jar:0.10.0]
... 11 more
2016-04-09 16:30:05.733 b.s.util [ERROR] Halting process: ("Error when processing an event")
java.lang.RuntimeException: ("Error when processing an event")
at backtype.storm.util$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.event$event_manager$fn__7258.invoke(event.clj:48) [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) [?:1.8.0_45]
2016-04-09 16:30:05.736 b.s.d.supervisor [INFO] Shutting down supervisor
++++++++++++++++++++++++++++++++++++++++++++++++++++++++
根据日志追查代码，发现at backtype.storm.utils.Utils.downloadFromMaster(Utils.java:361) ~[storm-core-0.10.0.jar:0.10.0]从中
可是给出的default.yaml样例配置文件中根本没有"nimbus.host"的配置，给出的是"nimbus.seeds"
没有办法，不知道取舍哪一个，之后两个都配上
nimbus.host : "10.211.55.13"
nimbus.seeds: "10.211.55.13"
结果一试，supervisor守护进程，不在死掉了，storm程序提交成功，运成功！！！困扰了好几天的问题终于解决！！！