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Date: Fri, 20 Feb 2015 00:28:12 +0000 (UTC)
From: "Demai Ni (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.12739026.1409812767000.91522.1424392092190@Atlassian.JIRA>
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 <JIRA.12739026.1409812767202@arcas>
Subject: [jira] [Commented] (HDFS-6994) libhdfs3 - A native C/C++ HDFS
 client
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    [ https://issues.apache.org/jira/browse/HDFS-6994?page=3Dcom.atlassian.=
jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D14328=
368#comment-14328368 ]=20

Demai Ni commented on HDFS-6994:
--------------------------------

[~wheat9] and [~wangzw],

bq. Note that libhdfs3 is always available to the power users =E2=80=93 the=
y can check out the code and compile it themselves. Given that I feel that =
there is no need rush declaring libhdfs3 is available without stabilizing t=
he APIs first.

just to chime in here from a user perspective. My team used this libhdfs3 f=
or POC since last Oct, and is considering it for our production line. We di=
d compile the code ourselves and integrated with our code as [~wheat9] sugg=
ested, and tested intensively for the most common APIs: connection, open/cl=
ose file, read, seek, etc..   However, to use this code in production, it i=
s important for us to have the jira accepted by hdfs community. The reason =
is due to general business/development process/guideline. Hence, we really =
love to see this jira committed and ok to smaller changes later on API and =
error handling.

With that said, I am just a user and not expert in hdfs/hadoop area. If the=
 design or code quality of the jira is not ready yet, certainly it should w=
ait.

Demai=20


> libhdfs3 - A native C/C++ HDFS client
> -------------------------------------
>
>                 Key: HDFS-6994
>                 URL: https://issues.apache.org/jira/browse/HDFS-6994
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: hdfs-client
>            Reporter: Zhanwei Wang
>            Assignee: 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. Suppo=
rt both HADOOP RPC version 8 and 9. Support Namenode HA and Kerberos authen=
tication.
> 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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