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From Steve Loughran <ste...@apache.org>
Subject Re: Mounting HDFS as local file system
Date Thu, 02 Dec 2010 11:16:22 GMT
On 02/12/10 03:01, Mark Kerzner wrote:
> Hi, guys,
> I see that there is MountableHDFS<http://wiki.apache.org/hadoop/MountableHDFS>,
> and I know that it works, but my questions are as follows:
>     - How reliable is it for large storage?;

Shouldn't be any worse than normal HDFS operations.

>     - Is it not hiding the regular design questions - we are dealing with
>     NameServers after all, but are trying to use it as a regular file system?
>     - For example, HDFS is not optimized for many small files that get
>     written and deleted, but a mounted system will lure one in this direction.

Like you say, it's not a conventional posix fs, it hates small files, 
where other things may be better.

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