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From Targino Silveira <targinosilve...@gmail.com>
Subject Re: Starting a Hadoop cluster.
Date Tue, 13 Mar 2012 18:48:43 GMT
Hi Harsh,

Another doubt is, HBase is like other database, it's Right ? If yes I can't
use it, because I need to use PostgreSQL.

When I spoken about tablespace, I sponken about a directory mounted where
postgres will record data, it's should possible with FuseDFS, I don't know
about speed, do you know some case like this.

My main gol using Hadoop would be to use with Postgres database.

I thank's for any response.


2012/3/13 Harsh J <harsh@cloudera.com>

> Hi,
> On Tue, Mar 13, 2012 at 7:24 AM, Targino Silveira
> <targinosilveira@gmail.com> wrote:
> > 1º - Can I create a direcory to be used like a tablespace for a database
> ?
> Not sure what you mean. Apache Hadoop simply comes with a distributed
> filesystem and a data processing framework that leverages the
> filesystem's features.
> If you are looking for something tabular and one that can support
> random querying, you will need to setup Apache HBase on top.
> > 2º - Always I need to use commands like this "hadoop dfs -ls /app " to
> work
> > with my cluster ?
> Yes this is the default way to interact with the HDFS, but you can
> also setup FuseDFS to have a local fuse-based mount point of your
> HDFS, in case you want one. The process is documented at
> http://wiki.apache.org/hadoop/MountableHDFS
> --
> Harsh J

Targino Silveira

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