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https://issues.apache.org/jira/browse/AMBARI-4141?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dmitry Lysnichenko updated AMBARI-4141:
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Attachment: AMBARI-4141.patch
By default, Python uses popen() flags that allow inheritance of open file
descriptors (both open files and ports) by subprocesses after parent death.
Python 3.x changes default behaviour.
http://bugs.python.org/issue3006
http://www.python.org/dev/peps/pep-0446/#inheritance-of-file-descriptors-on-unix
The attached patch sets appropriate flags when launching python subprocesses
via PythonExecutor. I did not add these flags to PuppetExecutor, because it
seems to work well without them. I guess that puppet internally uses correct
flags for it's own subprocesses.
> Pluggable services: random daemons occupy agent's port
> ------------------------------------------------------
>
> Key: AMBARI-4141
> URL: https://issues.apache.org/jira/browse/AMBARI-4141
> Project: Ambari
> Issue Type: Task
> Components: agent
> Affects Versions: 1.5.0
> Reporter: Dmitry Lysnichenko
> Assignee: Dmitry Lysnichenko
> Fix For: 1.5.0
>
> Attachments: AMBARI-4141.patch
>
>
> After manual agent restart (upon cluster installation) agent often refuses to
> start because of busy port 8670. Netstat gives something like
> {code}
> [root@vm-1 ~]# netstat -ntulp | grep 8670
> tcp 0 0 0.0.0.0:8670 0.0.0.0:*
> LISTEN 33423/gmond
> {code}
> I saw hive, hbase and gmond occupying this port. Did not notice such
> behaviour when installing cluster using pure puppet.
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