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https://issues.apache.org/jira/browse/HDFS-8474?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14558426#comment-14558426
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Allen Wittenauer commented on HDFS-8474:
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bq. There is no reason for libhdfs to export this API.
Exactly this. -1 on this change.
> Impala compilation breaks with libhdfs in 2.7 as getJNIEnv is not visible
> -------------------------------------------------------------------------
>
> Key: HDFS-8474
> URL: https://issues.apache.org/jira/browse/HDFS-8474
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: build, libhdfs
> Affects Versions: 2.7.0
> Environment: Red Hat Enterprise Linux Server release 6.4 and gcc 4.3.4
> Reporter: Varun Saxena
> Assignee: Varun Saxena
> Priority: Critical
> Attachments: HDFS-8474.01.patch
>
>
> Impala in CDH 5.2.0 is not compiling with libhdfs.so in 2.7.0 on RedHat 6.4.
> This is because getJNIEnv is not visible in the so file.
> Compilation fails with below error message :
> ../../build/release/exec/libExec.a(hbase-table-scanner.cc.o): In function
> `impala::HBaseTableScanner::Init()':
> /usr1/code/Impala/code/current/impala/be/src/exec/hbase-table-scanner.cc:113:
> undefined reference to `getJNIEnv'
> ../../build/release/exprs/libExprs.a(hive-udf-call.cc.o):/usr1/code/Impala/code/current/impala/be/src/exprs/hive-udf-call.cc:227:
> more undefined references to `getJNIEnv' follow
> collect2: ld returned 1 exit status
> make[3]: *** [be/build/release/service/impalad] Error 1
> make[2]: *** [be/src/service/CMakeFiles/impalad.dir/all] Error 2
> make[1]: *** [be/src/service/CMakeFiles/impalad.dir/rule] Error 2
> make: *** [impalad] Error 2
> Compiler Impala Failed, exit
> libhdfs.so.0.0.0 returns nothing when following command is run.
> "nm -D libhdfs.so.0.0.0 | grep getJNIEnv"
> The change in HDFS-7879 breaks the backward compatibility of libhdfs although
> it can be argued that Impala shouldn't be using above API.
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