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From Adam Fuchs <afu...@apache.org>
Subject Re: Running Accumulo straight from Memory
Date Tue, 11 Sep 2012 21:29:55 GMT
Matthew,

I don't know of anyone who has done this, but I believe you could:
1. mount a RAM disk
2. point the hdfs core-site.xml fs.default.name property to file:///
3. point the accumulo-site.xml instance.dfs.dir property to a directory on
the RAM disk
4. disable the WAL for all tables by setting the accumulo-site.xml
table.walog.enabled to false
5. initialize and start up accumulo as you regularly would and cross your
fingers

Of course, the "you may lose data" and "this is not an officially supported
configuration" caveats apply. Out of curiosity, what would you be trying to
accomplish with this configuration?

Adam


On Tue, Sep 11, 2012 at 12:02 PM, Moore, Matthew J. <
MATTHEW.J.MOORE@saic.com> wrote:

> Has anyone run Accumulo on a single server straight from memory?  Probably
> using something like a Fusion  IO drive.  We are trying to use it without
> using an SSD or any spinning discs.****
>
> ** **
>
> *Matthew Moore*****
>
> Systems Engineer****
>
> SAIC, ISBU****
>
> Columbia, MD****
>
> 410-312-2542****
>
> ** **
>

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