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https://issues.apache.org/jira/browse/HADOOP-8806?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13455813#comment-13455813
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Kihwal Lee commented on HADOOP-8806:
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bq. These libraries can be bundled in the $HADOOP_ROOT/lib/native directory.
For example, the -Dbundle.snappy build option copies libsnappy.so to this
directory. However, snappy can't be loaded from this directory unless
LD_LIBRARY_PATH is set to include this directory.
If this is only about MR jobs, isn't setting {{LD_LIBRARY_PATH}} in
{{mapreduce.admin.user.env}} enough?
> libhadoop.so: search java.library.path when calling dlopen
> ----------------------------------------------------------
>
> Key: HADOOP-8806
> URL: https://issues.apache.org/jira/browse/HADOOP-8806
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Colin Patrick McCabe
> Priority: Minor
>
> libhadoop calls {{dlopen}} to load {{libsnappy.so}} and {{libz.so}}. These
> libraries can be bundled in the {{$HADOOP_ROOT/lib/native}} directory. For
> example, the {{-Dbundle.snappy}} build option copies {{libsnappy.so}} to this
> directory. However, snappy can't be loaded from this directory unless
> {{LD_LIBRARY_PATH}} is set to include this directory.
> Should we also search {{java.library.path}} when loading these libraries?
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