[jira] [Reopened] (AMBARI-21744) package_regex in get_package_from_available() can match wrong pkg

["Dmitry Lysnichenko (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-21744?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dmitry Lysnichenko reopened AMBARI-21744:
-----------------------------------------

> package_regex in get_package_from_available() can match wrong pkg
> -----------------------------------------------------------------
>
>                 Key: AMBARI-21744
>                 URL: https://issues.apache.org/jira/browse/AMBARI-21744
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-server
>            Reporter: Dmitry Lysnichenko
>            Assignee: Dmitry Lysnichenko
>            Priority: Critical
>             Fix For: 2.6.0
>
>         Attachments: AMBARI-21744.patch
>
>
> Due to the issue with regex (missing ^ and $ boundaries), resource_management.libraries.script.script.Script#get_package_from_available may return wrong package.
> {code}
> >>> list=['hbase_3_0_0_0_229-master', 'hbase_3_0_0_0_229']
> >>> if re.match('hbase_(\d|_)+', 'hbase_3_0_0_0_229-master'):
> ...    print 'YES'
> ...
> YES
> >>> if re.match('hbase_(\d|_)+', 'hbase_3_0_0_0_229'):
> ...    print 'YES'
> ...
> YES
> {code}
> In this case, the first package name from a list of available packages will be returned.
> The impact of bug is that we may install a wrong package if it's simillary named and goes first at list. Patch is a single-line fix.



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