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https://issues.apache.org/jira/browse/HDFS-6994?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14125914#comment-14125914
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Colin Patrick McCabe commented on HDFS-6994:
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bq. Alan wrote: Ha. I was thinking "what name would I recommend instead?" this
morning and came up with libhdfs++.
:) I was thinking 'n' not 'h'. libndfs++.
As discussed earlier in this thread, libhdfs is going to keep on keeping on,
since we need it for s3 support (and other stuff). This library isn't really a
replacement for libhdfs, but something different with different advantages and
drawbacks.
bq. Haohui wrote: I think this is a fair point. C++11 covers a lot of issues
for the original boost use case. The only remaining gap I see, however, is
boost::asio.
This code doesn't use boost::asio.
bq. Alan wrote: I'm very much against boost showing up in Hadoop in any way,
shape, or form. It's always long term pain. I'd much rather take the short term
hit of requiring a modern compiler than deal with boost.
For CentOS 6, it's not as simple as just "upgrade the compiler." Binaries
generated with a C\+\+11 compiler will pull in a newer version of libstdc\+\+
than those generated with the earlier compiler. This in turn means that your
binaries will not be able to use any of the system libraries (that you got with
apt-get or yum). Since we have to support CentOS 6, this is a deal-breaker for
us actually using this library in the next few years.
I think the practical solution is just to use make boost a compiler option for
those who want it. The important thing to keep in mind is that: *the code can
build without boost, and that is the configuration that Jenkins should build
and test.* Anyone who wants a non-boost version can easily build it (in fact,
it will be the default), and we can document that the boost version is just
there temporarily for compatibility reasons.
> libhdfs3 - A native C/C++ HDFS client
> -------------------------------------
>
> Key: HDFS-6994
> URL: https://issues.apache.org/jira/browse/HDFS-6994
> Project: Hadoop HDFS
> Issue Type: Task
> Components: hdfs-client
> Reporter: Zhanwei Wang
> Attachments: HDFS-6994-rpc-8.patch, HDFS-6994.patch
>
>
> Hi All
> I just got the permission to open source libhdfs3, which is a native C/C++
> HDFS client based on Hadoop RPC protocol and HDFS Data Transfer Protocol.
> libhdfs3 provide the libhdfs style C interface and a C++ interface. Support
> both HADOOP RPC version 8 and 9. Support Namenode HA and Kerberos
> authentication.
> libhdfs3 is currently used by HAWQ of Pivotal
> I'd like to integrate libhdfs3 into HDFS source code to benefit others.
> You can find libhdfs3 code from github
> https://github.com/PivotalRD/libhdfs3
> http://pivotalrd.github.io/libhdfs3/
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