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Date: Fri, 27 Feb 2015 01:22:04 +0000 (UTC)
From: "Enis Soztutar (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: <JIRA.12778079.1424996860000.29712.1425000124547@Atlassian.JIRA>
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Subject: [jira] [Commented] (HBASE-13120) Allow disabling hadoop classpath
 and native library lookup
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    [ https://issues.apache.org/jira/browse/HBASE-13120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14339528#comment-14339528 ] 

Enis Soztutar commented on HBASE-13120:
---------------------------------------

+1. I think this is a valid use case where there is hadoop installed on the node(s), but we are trying to run HBase from a self-contained tarball. We should not try to find the "installed" hadoop in this case. 

> Allow disabling hadoop classpath and native library lookup
> ----------------------------------------------------------
>
>                 Key: HBASE-13120
>                 URL: https://issues.apache.org/jira/browse/HBASE-13120
>             Project: HBase
>          Issue Type: Improvement
>          Components: hbase
>    Affects Versions: 0.98.0
>            Reporter: Siddharth Wagle
>         Attachments: HBASE-13120.patch
>
>
> - Current bin/hbase script sets the java.library.path to include hadoop native libs based on what version of hadoop is installed on the box.
> {code}
> HADOOP_IN_PATH=$(PATH="${HADOOP_HOME:-${HADOOP_PREFIX}}/bin:$PATH" which hadoop 2>/dev/null)
> {code}
> - This effectively means that a self-contained HBase running with a different version of embedded hadoop jars will fail to work in case of version incompatibilities.
> - Example: AMBARI-5707, runs a embedded HBase on local FS side-by-side with cluster Hadoop installation.
> - It would be good to have a hbase-env variable to completely override native lib path or a config to disable native lib path lookup, in which case user has to provide it during start.


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