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https://issues.apache.org/jira/browse/AMBARI-13233?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14907978#comment-14907978
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Di Li commented on AMBARI-13233:
--------------------------------
existing unit test covers the code change already.
> Error message for ambari agent install failure when the ping port is taken by
> old agent process should state port and old process
> ---------------------------------------------------------------------------------------------------------------------------------
>
> Key: AMBARI-13233
> URL: https://issues.apache.org/jira/browse/AMBARI-13233
> Project: Ambari
> Issue Type: Bug
> Components: ambari-agent
> Affects Versions: 2.1.0
> Reporter: Di Li
> Assignee: Di Li
> Priority: Minor
> Fix For: trunk
>
> Attachments: AMBARI-13233.patch
>
>
> When the Ambari Agent's ping port is taken by old/left over ambari agent
> process. the Ambari agent install fails during the cluster installation time.
> The error message simply says Address already in use. As shown below.
> "ERROR 2015-08-14 17:11:26,557 main.py:272 - Failed to start ping port
> listener of: [Errno 98] Address already in use"
> The error message could have been more specific on which port was used by
> which process.
> In fact, the err msg is there in the
> ambari-agent/src/main/python/ambari_agent/PingPortListener.py already. It's
> just that it was never used due to the way the awk parses the pid.
> This JIRA is to attempt to fix the awk parse cmd so that the Ambari agent
> python script would throw the exception with a detailed error message.
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