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From "Kiran Kumar M R (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8474) Impala compilation breaks with libhdfs in 2.7 as getJNIEnv is not visible
Date Mon, 25 May 2015 10:08:17 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8474?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14558082#comment-14558082
] 

Kiran Kumar M R commented on HDFS-8474:
---------------------------------------

LGTM
{{LIBHDFS_EXTERNAL}} is already defined in hdfs.h, but undef is done at end of file.
May be that can be reused or moved to a common file instead of defining again in jni_helper.h


> 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"



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