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https://issues.apache.org/jira/browse/HDFS-13822?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16583025#comment-16583025
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James Clampffer commented on HDFS-13822:
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[~jlowe] I agree that this isn't breaking the tests any more than they already
were. One of the native client issues is libhdfs++ related (HDFS-9610), however
it looks like that provided cover for another bug to be introduced in the JNI
libhdfs hdfsGetLastExceptionRootCause a month or two ago.
The only test coverage added for hdfsGetLastExceptionRootCause was one call in
test_libhdfs_threaded (both libhdfs and libhdfs++ run that test). Now it
deterministically returns a null String ref rather than the expected output. I
noticed that when I was trying to sort out HDFS-9610 and add test coverage for
the libhdfs++ C++ API but haven't had a chance to figure out which commit broke
it.
> speedup libhdfs++ build (enable parallel build)
> -----------------------------------------------
>
> Key: HDFS-13822
> URL: https://issues.apache.org/jira/browse/HDFS-13822
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Pradeep Ambati
> Assignee: Allen Wittenauer
> Priority: Minor
> Attachments: HDFS-13382.000.patch, HDFS-13822.01.patch,
> HDFS-13822.02.patch
>
>
> libhdfs++ has significantly increased clean build times for the native client
> on trunk. Problem is that libhdfs++ isn't build in parallel. When I tried to
> force a parallel build by specifying -Dnative_make_args=-j4, the build fails
> due to dependencies.
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