Eli Collins created HADOOP-8642:
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Summary: io.native.lib.available only controls zlib
Key: HADOOP-8642
URL: https://issues.apache.org/jira/browse/HADOOP-8642
Project: Hadoop Common
Issue Type: Bug
Components: native
Affects Versions: 2.0.0-alpha
Reporter: Eli Collins
Per core-default.xml {{io.native.lib.available}} indicates "Should native
hadoop libraries, if present, be used" however it looks like it only affects
zlib. Since we always load the native library this means we may use native
libraries even if io.native.lib.available is set to false.
Let's make the flag to work as advertised - rather than always load the native
hadoop library we only attempt to load the library (and report that native is
available) if this flag is set. Since io.native.lib.available defaults to true
the default behavior should remain unchanged (except that now we wont actually
try to load the library if this flag is disabled).
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