[jira] [Resolved] (HAWQ-1540) PXF should not accept parameters for init command

["Alexander Denissov (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HAWQ-1540?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alexander Denissov resolved HAWQ-1540.
--------------------------------------
       Resolution: Fixed
    Fix Version/s: 2.3.0.0-incubating

> PXF should not accept parameters for init command
> -------------------------------------------------
>
>                 Key: HAWQ-1540
>                 URL: https://issues.apache.org/jira/browse/HAWQ-1540
>             Project: Apache HAWQ
>          Issue Type: Improvement
>          Components: PXF
>            Reporter: Alexander Denissov
>            Assignee: Alexander Denissov
>             Fix For: 2.3.0.0-incubating
>
>
> Currently PXF accepts --hadoop-home parameter for init command, which is used in greenplum-embedded deployment to specify where Hadoop client artifacts are installed. The desired behavior is:
> - do not accept any parameters during init command
> - rely on configuration provided by conf/pxf-env.sh file
> - introduce new HADOOP_DISTRO variable that can take the following values: [<empty>, HDP, CDH, CUSTOM]
> - when the value is empty -- the script will check for existence of RPM-installed HDP hadoop-client in /usr/hdp/current/hadoop-client/client and if found, will use HDP-specific private classpath template to generate new pxf-private.classpath file. If not found, the script will check for existence of RPM-installed CDH hadoop-client in /usr/lib/hadoop/client and if found, will use CDH-specific private classpath template to generate new pxf-private.classpath file. If none were found, the script will check for a TAR-installed hadoop client in the directory specified by the new variable HADOOP_ROOT under ${HADOOP_ROOT}/hadoop/share/hadoop/common/lib. If found, the script will use TAR-specific private classpath template to generate new pxf-private.classpath file. That template assumes Hadoop client (and optionally Hive and HBase clients) are installed under a common directorythat is pointed to by HADOOP_ROOT variable. A user will have to specify this variable or edit the pxf-env.sh config file before attempting pxf init command. If HADOOP_ROOT is not set of  ${HADOOP_ROOT}/hadoop/share/hadoop/common/lib directory does not exist, the script will error out.
> - when the value is HDP -- the script will check for existence of RPM-installed HDP hadoop-client in /usr/hdp/current/hadoop-client/client and if found, will use HDP-specific private classpath template to generate new pxf-private.classpath file. If not found, the script will check for TAR-installed distribution as described above.
> - when the value is CDH -- the script will check for existence of RPM-installed CDH hadoop-client in /usr/lib/hadoop/client and if found, will use CDH-specific private classpath template to generate new pxf-private.classpath file. If not found, the script will check for TAR-installed distribution as described above.
> - when the value is CUSTOM -- the script will check for TAR-installed distribution as described above, except it will not error out if HADOOP_ROOT is not set or points to a non-existing directory. If HADOOP_ROOT is set, the value will be substituted in tar-based template, even if the directory does not yet exist. If HADOOP_ROOT is not set, the tar-based template is copied to the conf/pxf-private.classpath file and the user will have to perform the editing of this file.



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