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From Andrew Wells <awe...@clearedgeit.com>
Subject Re: Mini Accumulo Cluster reusing the directory
Date Tue, 22 Sep 2015 13:42:31 GMT
The last is a cool idea... especially if you scaled out from that
application install. Using MAC for that would mean there would be some
downtime.

On Tue, Sep 22, 2015 at 3:42 AM, Sven Hodapp <sven.hodapp@scai.fraunhofer.de
> wrote:

> Hi Keith,
>
> for me the use cases are:
>
>  * easy and portable development
>  * in general testing
>  * embedding Accumulo
>
> Especially the last point is for me very insteresting.
> First I can deliver a relativly light weight application, which has
> Accumulo embedded (like a library).
> And then, if the application runs very well and gets many users, it's very
> easy to scale to a full Accumulo installation!
>
> Regards,
> Sven
>
> --
> Sven Hodapp M.Sc.,
> Fraunhofer Institute for Algorithms and Scientific Computing SCAI,
> Department of Bioinformatics
> Schloss Birlinghoven, 53754 Sankt Augustin, Germany
> sven.hodapp@scai.fraunhofer.de
> www.scai.fraunhofer.de
>
> ----- Ursprüngliche Mail -----
> > Von: "Keith Turner" <keith@deenlo.com>
> > An: "user" <user@accumulo.apache.org>
> > Gesendet: Mittwoch, 16. September 2015 21:41:00
> > Betreff: Re: Mini Accumulo Cluster reusing the directory
>
> > Would you be able to provide more informaiton about your use case?  Was
> > wondering if other solutions could be of use, like configuring regular
> > Accumulo to use the local filesystem.  This can be done, but care needs
> to
> > be taken to make walogs work correctly.   If interested I could provide
> > more info about this configuration.
> >
> > On Wed, Sep 16, 2015 at 9:20 AM, Sven Hodapp <
> sven.hodapp@scai.fraunhofer.de
> >> wrote:
> >
> >> Hi there,
> >>
> >> is it possible for MiniAccumuloCluster to reuse a given directory?
> >> Sadly, I haven't found anything in the docs?
> >>
> >> I’ll fire up my instance like this:
> >>
> >>    val dict = new File("/tmp/accumulo-mini-cluster")
> >>    val accumulo = new MiniAccumuloCluster(dict, "test“)
> >>
> >> If I’ll restart my JVM it will raise a error like this:
> >>
> >>    Exception in thread "main" java.lang.IllegalArgumentException:
> >> Directory /tmp/accumulo-mini-cluster is not empty
> >>
> >> It would be nice if the data can survive a JVM restart and the folder
> >> structure must not be constructed every time.
> >>
> >> Thanks a lot!
> >>
> >> Regards,
> >> Sven
> >>
> >> --
> >> Sven Hodapp M.Sc.,
> >> Fraunhofer Institute for Algorithms and Scientific Computing SCAI,
> >> Department of Bioinformatics
> >> Schloss Birlinghoven, 53754 Sankt Augustin, Germany
> >> sven.hodapp@scai.fraunhofer.de
> >> www.scai.fraunhofer.de
>



-- 
*Andrew George Wells*
*Software Engineer*
*awells@clearedgeit.com <awells@clearedgeit.com>*

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