[jira] [Commented] (KYLIN-3139) Failure in map-reduce job due to undefined hdp.version variable when using HDP stack and remote HBase cluster

["Vsevolod Ostapenko (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KYLIN-3139?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16305767#comment-16305767 ] 

Vsevolod Ostapenko commented on KYLIN-3139:
-------------------------------------------

Proposed version of the patch is attached, please review and provide your feedback (or commit, if it looks OK).

> Failure in map-reduce job due to undefined hdp.version variable when using HDP stack and remote HBase cluster
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: KYLIN-3139
>                 URL: https://issues.apache.org/jira/browse/KYLIN-3139
>             Project: Kylin
>          Issue Type: Bug
>          Components: General
>    Affects Versions: v2.2.0
>         Environment: HDP 2.5.6, two cluster setup, Kylin 2.2.0 in a cluster with Hive only, remote HBase cluster for data storage
>            Reporter: Vsevolod Ostapenko
>            Assignee: Vsevolod Ostapenko
>            Priority: Minor
>              Labels: hdp
>         Attachments: KYLIN-3139.master.001.patch
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> When running on top of HDP stack and using a setup where Hive and HBase run in different clusters cube build/refresh fails on the step "Extract Fact Table Distinct Columns" with the error
> {quote}java.lang.IllegalArgumentException: Unable to parse '/hdp/apps/$\{hdp.version\}/mapreduce/mapreduce.tar.gz#mr-framework' as a URI, check the setting for mapreduce.application.framework.path{quote}
> Based on existing JIRA discussions in Ambari project, it's responsibility of a service to set hdp.version Java property. When HBase is not installed as a service in a cluster hbase launcher does not set this property (presumably because HBase in that case is just a client and not a service).
> The only suitable workaround found so far is to set property as part of the conf/setenv.sh script.
> In order to avoid hard coding of the HDP version info, suggested change to setenv.sh will attempt to detect HDP version at run-time. It should work for all released HDP version from 2.2.x to 2.6.x
> In addition to that, it will also try to locate and set Java native library path, when running on top of HDP.



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