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https://issues.apache.org/jira/browse/HDFS-16464?focusedWorklogId=791686&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-791686
 ]

ASF GitHub Bot logged work on HDFS-16464:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 16/Jul/22 20:28
            Start Date: 16/Jul/22 20:28
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus commented on PR #4571:
URL: https://github.com/apache/hadoop/pull/4571#issuecomment-1186284772

   :broken_heart: **-1 overall**
   
   
   
   
   
   
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[/patch-compile-hadoop-hdfs-project_hadoop-hdfs-native-client.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4571/1/artifact/out/patch-compile-hadoop-hdfs-project_hadoop-hdfs-native-client.txt)
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[/patch-compile-hadoop-hdfs-project_hadoop-hdfs-native-client.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4571/1/artifact/out/patch-compile-hadoop-hdfs-project_hadoop-hdfs-native-client.txt)
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[/patch-compile-hadoop-hdfs-project_hadoop-hdfs-native-client.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4571/1/artifact/out/patch-compile-hadoop-hdfs-project_hadoop-hdfs-native-client.txt)
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[/patch-unit-hadoop-hdfs-project_hadoop-hdfs-native-client.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4571/1/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs-native-client.txt)
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   |  |   | 125m 33s |  |  |
   
   
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   | GITHUB PR | https://github.com/apache/hadoop/pull/4571 |
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   | modules | C: hadoop-hdfs-project/hadoop-hdfs-native-client U: 
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https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4571/1/console |
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   | Powered by | Apache Yetus 0.14.0 https://yetus.apache.org |
   
   
   This message was automatically generated.
   
   




Issue Time Tracking
-------------------

    Worklog Id:     (was: 791686)
    Time Spent: 20m  (was: 10m)

> Create only libhdfspp static libraries for Windows
> --------------------------------------------------
>
>                 Key: HDFS-16464
>                 URL: https://issues.apache.org/jira/browse/HDFS-16464
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: libhdfs++
>    Affects Versions: 3.4.0
>         Environment: Windows 10
>            Reporter: Gautham Banasandra
>            Assignee: Gautham Banasandra
>            Priority: Major
>              Labels: libhdfscpp, pull-request-available
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> While building dynamic libraries (.dll) on Windows, there's a constraint that 
> all the dependent libraries be linked dynamically. This poses an issue since 
> Protobuf (which is an HDFS native client dependency) runs into build issues 
> when linked dynamically. There are a few [warning 
> notes|https://github.com/protocolbuffers/protobuf/blob/9ebb31726cef11e4e940b50ec751df4e863e3d2a/cmake/README.md#dlls-vs-static-linking]
>  on the Protobuf repository's build instructions page as well.
> Thus, to keep things simple, we can resort to do only static linking and 
> thereby only produce statically linked libraries on Windows. In summary, 
> we'll be providing only Hadoop .lib files initially. We can aim to produce 
> Hadoop .dll on Windows eventually once we're able to resolve Protobuf's .dll 
> issues.
> In Hadoop CMake files, we've a function 
> [hadoop_add_dual_library|https://github.com/apache/hadoop/blob/f0241ec2161f6eccdb9bdaf1cbcbee55be379217/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfspp/CMakeLists.txt#L289-L298]
>  that creates both the static an dynamic library targets. We need to replace 
> all these to get only static libraries for Windows.



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