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Posted to common-issues@hadoop.apache.org by "Harsh J (JIRA)" <ji...@apache.org> on 2012/09/22 17:31:07 UTC
[jira] [Updated] (HADOOP-6895) Native Libraries do not load if a
different platform signature is returned from
org.apache.hadoop.util.PlatformName
[ https://issues.apache.org/jira/browse/HADOOP-6895?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Harsh J updated HADOOP-6895:
----------------------------
Fix Version/s: (was: 0.24.0)
> Native Libraries do not load if a different platform signature is returned from org.apache.hadoop.util.PlatformName
> -------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-6895
> URL: https://issues.apache.org/jira/browse/HADOOP-6895
> Project: Hadoop Common
> Issue Type: Bug
> Components: native
> Affects Versions: 0.20.205.0
> Environment: SLES 10, IBM Java 6, Hadoop 0.21.0-rc0
> Reporter: Stephen Watt
> Priority: Minor
> Attachments: HADOOP-6895.patch
>
> Original Estimate: 0h
> Remaining Estimate: 0h
>
> bin/hadoop-config.sh has an environment variable called JAVA_PLATFORM which is set to to the results returned by org.apache.hadoop.util.PlatformName . These results are sometimes unique to the JRE being used. Although the value returned for 64 Bit Sun/Oracle Java and 64 Bit IBM Java is the same, it is different for the corresponding 32 Bit JREs.
> The issue is that the value returned is used in creating the path to the native libraries on disk, i.e ${HADOOP_COMMON_HOME}/lib/native/${JAVA_PLATFORM}
> Since the path on disk is fixed with the Sun JRE value /lib/native/Linux-i386-32 it therefore fails when it attempts to load the native libraries with the value returned with 32 Bit IBM Java, /lib/native/Linux-x86-32
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