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https://issues.apache.org/jira/browse/HADOOP-13234?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15610986#comment-15610986
]
Brahma Reddy Battula commented on HADOOP-13234:
-----------------------------------------------
Ok..Only difference might {{ServerSocket(0).getLocalPort()}} will give free
port (32768-61000 on Linux and 49152-65535 on Windows) and {{getPort{p,
retries)}} will retries the range between p and 65535( diff might be retry).
So we can close this issue..? and to adress the following which is mentioned by
[~xyao], need to increase the retry..?
{noformat}
java.io.IOException: Port is already in use; giving up after 10 times.
at
org.apache.hadoop.net.ServerSocketUtil.waitForPort(ServerSocketUtil.java:98)
at
org.apache.hadoop.hdfs.TestDFSShell.testMoveWithTargetPortEmpty(TestDFSShell.java:809)
{noformat}
> Get random port by new ServerSocket(0).getLocalPort() in
> ServerSocketUtil#getPort
> ---------------------------------------------------------------------------------
>
> Key: HADOOP-13234
> URL: https://issues.apache.org/jira/browse/HADOOP-13234
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Brahma Reddy Battula
> Assignee: Brahma Reddy Battula
> Attachments: HADOOP-13234-002.patch, HADOOP-13234.patch
>
>
> As per [~iwasakims] comment from
> [here|https://issues.apache.org/jira/browse/HDFS-10367?focusedCommentId=15275604&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15275604]
> we can get available random port by {{new ServerSocket(0).getLocalPort()}}
> and it's more portable.
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