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https://issues.apache.org/jira/browse/HADOOP-13234?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15551366#comment-15551366
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Brahma Reddy Battula commented on HADOOP-13234:
-----------------------------------------------
A port number of 0 means that the port number is automatically allocated,
typically from an ephemeral port range.
Yes, there can be a race condition - a different process / thread may bind to
the same port immediately after we close the ServerSocket instance.
> 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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