Make sure the nimbus is running properly. 

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> On 18 Jul 2017, at 09:16, sam mohel <sammoh...@gmail.com> wrote:
> 
> i'm facing problem with submitting topology in distributed mode
> storm-0.10.2  zookeeper-3.4.6
> 
> Exception in thread "main" java.lang.RuntimeException:
> org.apache.thrift7.transport.TTransportException:
> java.net.ConnectException: Connection refused (Connection refused)
> at
> backtype.storm.security.auth.TBackoffConnect.retryNext(TBackoffConnect.java:59)
> at
> backtype.storm.security.auth.TBackoffConnect.doConnectWithRetry(TBackoffConnect.java:51)
> at
> backtype.storm.security.auth.ThriftClient.reconnect(ThriftClient.java:103)
> at backtype.storm.security.auth.ThriftClient.<init>(ThriftClient.java:72)
> at backtype.storm.utils.DRPCClient.<init>(DRPCClient.java:44)
> 
> what should i check for fixing this problem ?

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