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https://issues.apache.org/jira/browse/HADOOP-6895?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stephen Watt updated HADOOP-6895:
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Status: Patch Available (was: Open)
Since the native libraries work regardless of JRE, I am applying a simple patch
that checks for the IBM 32 JRE Signature and if found sets the JAVA_PLATFORM
variable to the Oracle/Sun Signature.
> 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
> Environment: SLES 10, IBM Java 6, Hadoop 0.21.0-rc0
> Reporter: Stephen Watt
> Priority: Minor
> Fix For: 0.21.0, 0.22.0
>
> 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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