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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-256) Implement a C api for hadoop dfs
Date Fri, 26 May 2006 22:07:30 GMT
    [ http://issues.apache.org/jira/browse/HADOOP-256?page=comments#action_12413540 ] 

Doug Cutting commented on HADOOP-256:
-------------------------------------

This looks good, but the build still needs some work.

I tried to run 'make' in the source directory, but had to first add $(LDFLAGS) to a number
of the targets to stop complaints about finding libjvm.so.  Also, it would be best to add
a target to build.xml that builds this.  Builds should not write files in the source tree:
it would be better to have all of the compiler outputs placed in the top-level build directory
(e.g., in ../../../build/libhdfs, or as specified in an environment variable passed from build.xml).

Most of the above are also valid complaints about librecordio.  I must not have been paying
enough attention when I committed that!

The tests depend on executables in /tmp, but, as far as I can see, there's nothing that puts
them there.

The goal is that one should be able to check things out of subversion and run something like:

  ant test-libhdfs

And have the code build and run.  It is safe to assume that folks have gcc, make, etc. installed
and available.  Ideally this would work on Cygwin as well as linux, but that's a lower priority.

Thanks!

> Implement a C api for hadoop dfs
> --------------------------------
>
>          Key: HADOOP-256
>          URL: http://issues.apache.org/jira/browse/HADOOP-256
>      Project: Hadoop
>         Type: New Feature

>   Components: dfs
>     Reporter: Arun C Murthy
>  Attachments: libhdfs.patch
>
> Implement a C api for hadoop dfs to ease talking to hadoop's dfs from native C/C++ applications.

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