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https://issues.apache.org/jira/browse/HDFS-16665?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDFS-16665:
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Labels: libhdfscpp pull-request-available (was: libhdfscpp)
> Fix duplicate sources for hdfspp_test_shim_static
> -------------------------------------------------
>
> Key: HDFS-16665
> URL: https://issues.apache.org/jira/browse/HDFS-16665
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: libhdfs++
> Affects Versions: 3.4.0
> Environment: Windows 10
> Reporter: Gautham Banasandra
> Assignee: Gautham Banasandra
> Priority: Critical
> Labels: libhdfscpp, pull-request-available
> Attachments: hdfs_shim duplicate symbols.log
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> The library target *hdfspp_test_shim_static* is built using the following
> sources, which causes duplicate symbols to be defined -
> 1. hdfs_shim.c
> 2. ${LIBHDFSPP_BINDING_C}/hdfs.cc
> https://github.com/apache/hadoop/blob/8774f178686487007dcf8c418c989b785a529000/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/tests/CMakeLists.txt#L153
> And fails the compilation -
> {code}
> H:\hadoop-hdfs-project\hadoop-hdfs-native-client\src\out\build\x64-Debug\hdfspp_test_shim_static.lib(hdfs_shim.obj)
> : error LNK2005: hdfsAllowSnapshot already defined in
> hdfspp_test_shim_static.lib(hdfs.obj)
> H:\hadoop-hdfs-project\hadoop-hdfs-native-client\src\out\build\x64-Debug\hdfspp_test_shim_static.lib(hdfs_shim.obj)
> : error LNK2005: hdfsAvailable already defined in
> hdfspp_test_shim_static.lib(hdfs.obj)
> H:\hadoop-hdfs-project\hadoop-hdfs-native-client\src\out\build\x64-Debug\hdfspp_test_shim_static.lib(hdfs_shim.obj)
> : error LNK2005: hdfsBuilderConfSetStr already defined in
> hdfspp_test_shim_static.lib(hdfs.obj)
> H:\hadoop-hdfs-project\hadoop-hdfs-native-client\src\out\build\x64-Debug\hdfspp_test_shim_static.lib(hdfs_shim.obj)
> : error LNK2005: hdfsBuilderConnect already defined in
> hdfspp_test_shim_static.lib(hdfs.obj)
> {code}
> Duplicate symbols defined by hdfs_shim.c -
> https://github.com/apache/hadoop/blob/440f4c2b28515d2007b81ac00b549bbf14fa9f64/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/tests/hdfs_shim.c#L583-L585.
> Adding the source *${LIBHDFSPP_BINDING_C}/hdfs.cc* is redundant here since
> this file is transitively included in hdfs_shim.c through
> *libhdfspp_wrapper.h* -
> https://github.com/apache/hadoop/blob/440f4c2b28515d2007b81ac00b549bbf14fa9f64/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/tests/hdfs_shim.c#L20.
> Thus, we need to exclude *${LIBHDFSPP_BINDING_C}/hdfs.cc* to fix this issue.
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