[jira] [Created] (YARN-5403) yarn top command does not execute correct

["gu-chi (JIRA)" <ji...@apache.org>]

gu-chi created YARN-5403:
----------------------------

             Summary: 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


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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