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From ashish pareek <pareek...@gmail.com>
Subject Re: Question on file HDFS file system
Date Wed, 12 Aug 2009 03:42:23 GMT
Hi Everybody,
                   I am already tracing through source code and trying to
figure out things. Any way thanks for all your suggestions.

Regards,
Ashish


On Tue, Aug 11, 2009 at 11:32 PM, Jakob Homan <jhoman@yahoo-inc.com> wrote:

> Hey Ashish-
>   In terms of how overall design architecture of HDFS, I would point you to
> the project documentation:
> http://hadoop.apache.org/common/docs/current/hdfs_design.html
> For specific data structures, your first stop should be the INode class and
> its extending classes, located in
> src/java/org/apache/hadoop/hdfs/server/namenode/INode.java (also
> INodeDirectory, INodeFile, etc.)  Looking at how the fsimage file is laid
> out FSImage:LoadFSImage or the OfflineImageViewer classes.
>
> Hope this helps.
>
> -Jakob Homan
> HDFS/Yahoo!
>
>
> ashish pareek wrote:
>
>> Hi Everybody,
>>
>>                   I would like to understand HDFS source code. But basic
>> question I want to ask is what type of data-structure does HDFS use to
>> store
>> INode information.  I am interested in knowing what code of HDFS is
>> responsible with meta-data info of files.
>> Please can some HDFS-Guru throw some light on this topic and suggest some
>> way how to understand HDFS source code. :)
>>
>> Regards,
>> Ashish
>>
>>
>

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