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https://issues.apache.org/jira/browse/HADOOP-8806?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13455375#comment-13455375
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Todd Lipcon commented on HADOOP-8806:
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IMO we don't want to link against the system's libsnappy for the forseeable
future, since it's not widely packaged by distributions enough. libz being an
ancient library would be more reasonable to link against.
So, I think we should do one of:
1) Continue to use dlopen, but explicitly search the java.library.path. It's
probably easy enough with JNI to grab this system property.
or 2) Statically link libsnappy.a into libhadoop at build time.
> 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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