Dmitry Lysnichenko created AMBARI-21744:
-------------------------------------------
Summary: 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
Reporter: Dmitry Lysnichenko
Assignee: Dmitry Lysnichenko
Priority: Critical
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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