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From "Ivan Veselovsky (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (IGNITE-3184) Hadoop: HADOOP_HOME should not be required if all other environment variables are set.
Date Thu, 16 Jun 2016 18:01:05 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-3184?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15334313#comment-15334313
] 

Ivan Veselovsky edited comment on IGNITE-3184 at 6/16/16 6:00 PM:
------------------------------------------------------------------

https://github.com/apache/ignite/pull/810

(Windows scripts not tested yet.)


was (Author: iveselovskiy):
https://github.com/apache/ignite/pull/810

> Hadoop: HADOOP_HOME should not be required if all other environment variables are set.
> --------------------------------------------------------------------------------------
>
>                 Key: IGNITE-3184
>                 URL: https://issues.apache.org/jira/browse/IGNITE-3184
>             Project: Ignite
>          Issue Type: Bug
>          Components: hadoop
>    Affects Versions: 1.5.0.final
>            Reporter: Vladimir Ozerov
>            Assignee: Vladimir Ozerov
>             Fix For: 1.7
>
>
> *Problem*
> Ignite internals require three pieces to create correct Hadoop classpath:
> 1) Path to common JARs;
> 2) Path to HDFS JARs;
> 3) Path map-reduce JARs.
> These three paths could be set with environment variables HADOOP_COMMON_HOME, HADOOP_HDFS_HOME
and HADOOP_MAPRED_HOME respectively. 
> When all of them are set, HADOOP_HOME is no longer needed, but we will throw an exception
in this case. We should not do that.
> *Solution*
> Throw exception only in case we cannot resolve any of these paths.



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