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https://issues.apache.org/jira/browse/STORM-3316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16760972#comment-16760972
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Ethan Li commented on STORM-3316:
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6700端口是属于supervisor的。每个worker会被assign到不同端口。
topology刚启动的时候，worker刚刚启动，相互之间还没能立即连接上。在最开始看到这些error是正常的。topology一般很快就会稳定下来。
(translation: It's complaining that this worker cannot connect to another
worker. It's normal when the topology just gets started. )
> supervisor cannot connect nimbus
> --------------------------------
>
> Key: STORM-3316
> URL: https://issues.apache.org/jira/browse/STORM-3316
> Project: Apache Storm
> Issue Type: Question
> Environment: storm.zookeeper.servers:
> - "172.16.2.122"
> - "172.16.2.124"
> - "172.16.2.202"
> nimbus.seeds: ["172.16.2.118"]
> storm.local.hostname: "172.16.2.118"
> supervisor.slots.ports:
> - 6700
> - 6701
> - 6702
> - 6703
> ui.port: 9001
> Reporter: zhangchi
> Priority: Major
>
> 2019-01-18 02:40:51.369 o.a.s.m.n.Client client-boss-1 [ERROR] connection
> attempt 1460 to Netty-Client-/172.16.2.118:6700 failed:
> java.net.ConnectException: Connection refused: /172.16.2.118:6700
> 2019-01-18 02:40:51.369 o.a.s.u.StormBoundedExponentialBackoffRetry
> client-boss-1 [WARN] WILL SLEEP FOR 1000ms (MAX)
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