Sahil Takiar created HDFS-14321:
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Summary: Fix -Xcheck:jni issues in libhdfs, run ctest with
-Xcheck:jni enabled
Key: HDFS-14321
URL: https://issues.apache.org/jira/browse/HDFS-14321
Project: Hadoop HDFS
Issue Type: Improvement
Components: hdfs-client, libhdfs, native
Reporter: Sahil Takiar
Assignee: Sahil Takiar
The JVM exposes an option called {{-Xcheck:jni}} which runs various checks
against JNI usage by applications. Further explanation of this JVM option can
be found in:
[https://docs.oracle.com/javase/8/docs/technotes/guides/troubleshoot/clopts002.html]
and
[https://www.ibm.com/support/knowledgecenter/en/SSYKE2_8.0.0/com.ibm.java.vm.80.doc/docs/jni_debug.html].
When run with this option, the JVM will print out any warnings or errors it
encounters with the JNI.
We should run the libhdfs tests with {{-Xcheck:jni}} (can be added to
{{LIBHDFS_OPTS}}) and fix any warnings / errors. We should add this option to
our ctest runs as well to ensure no regressions are introduced to libhdfs.
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