[jira] [Commented] (AMBARI-22516) Ambari 2.6 build has python 2.6 dependency

["Doroszlai, Attila (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMBARI-22516?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16267710#comment-16267710 ] 

Doroszlai, Attila commented on AMBARI-22516:
--------------------------------------------

Ambari does not depend on Python version 2.6, it can work with 2.7 fine.  However, it turns out that the [{{brp-python-bytecompile}} script|https://github.com/rpm-software-management/rpm/blob/rpm-4.11.x/scripts/brp-python-bytecompile#L39-L44] uses {{/usr/bin/python2.6}} to compile source files that go into {{/usr/lib/python2.6}}.

[^AMBARI-22516.branch-2.6.patch] is a workaround that allows the build to proceed in spite of this failure by setting the scripts {{errors_terminate}} param to false.  The patch can be applied to the source extracted from {{apache-ambari-2.6.0-src.tar.gz}}.  I could not get python compilation to be entirely skipped.

> Ambari 2.6 build has python 2.6 dependency
> ------------------------------------------
>
>                 Key: AMBARI-22516
>                 URL: https://issues.apache.org/jira/browse/AMBARI-22516
>             Project: Ambari
>          Issue Type: Improvement
>         Environment: RHEL 7.4
>            Reporter: Ronald van de Kuil
>            Priority: Critical
>         Attachments: AMBARI-22516.branch-2.6.patch
>
>
> The installation guide for Ambari 2.6 instructs us to build the RHEL rpm using:
> mvn -B clean install package rpm:rpm -DnewVersion=2.6.0.0.0 -DskipTests -Dpython.ver="python >= 2.6"
> I just tried this on RHEL 7 (which is not listed in the instructions) and then the build fails:
> /usr/lib/rpm/brp-python-bytecompile: line 44: /usr/bin/python2.6: No such file or directory
> I read that downgrading RHEL 7 to use python 2.6 is not a good idea because allegedly several OS scripts depend on it.
> I saw a different JIRA issue that gave some suggestions to overwrite the required version using commandline options.
> Should ambari be able to run on the version 7 of the OS at this moment? .And if so, should it work fine with the 2.7 version of python?



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