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https://issues.apache.org/jira/browse/YARN-5403?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15385347#comment-15385347
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Bibin A Chundatt commented on YARN-5403:
----------------------------------------
Duplicate of YARN-4232.
> yarn top command does not execute correct
> -----------------------------------------
>
> Key: YARN-5403
> URL: https://issues.apache.org/jira/browse/YARN-5403
> Project: Hadoop YARN
> Issue Type: Bug
> Components: yarn
> Affects Versions: 2.7.2
> Reporter: gu-chi
> Attachments: YARN-5403.patch
>
>
> when execute {{yarn top}}, I always get exception as below:
> {quote}
> 16/07/19 19:55:12 ERROR cli.TopCLI: Could not fetch RM start time
> java.net.ConnectException: Connection refused
> at java.net.PlainSocketImpl.socketConnect(Native Method)
> at
> java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
> at
> java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:204)
> at
> java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
> at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
> at java.net.Socket.connect(Socket.java:589)
> at java.net.Socket.connect(Socket.java:538)
> at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
> at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
> at sun.net.www.http.HttpClient.openServer(HttpClient.java:527)
> at sun.net.www.http.HttpClient.<init>(HttpClient.java:211)
> at sun.net.www.http.HttpClient.New(HttpClient.java:308)
> at sun.net.www.http.HttpClient.New(HttpClient.java:326)
> at
> sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1169)
> at
> sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1105)
> at
> sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:999)
> at
> sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:933)
> at
> org.apache.hadoop.yarn.client.cli.TopCLI.getRMStartTime(TopCLI.java:747)
> at org.apache.hadoop.yarn.client.cli.TopCLI.run(TopCLI.java:443)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
> at org.apache.hadoop.yarn.client.cli.TopCLI.main(TopCLI.java:421)
> YARN top - 19:55:13, up 17001d, 11:55, 0 active users, queue(s): root
> {quote}
> As I looked into it, the function {{getRMStartTime}} use HTTP as hardcoding
> no matter what is the {{yarn.http.policy}} setting, should consider if use
> HTTPS
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