[Mondrian] Mondrian Digest, Vol 112, Issue 13

Pedro Alves pmgalves at gmail.com
Wed Apr 6 10:48:35 EDT 2016


Hey there Stefano


I didn't say M3 is the end all / be all. But so isn't M4. We are very aware
of the issues and _absolutely_ need to address some of the issues you
mentioned - namely the separation between the physical and logical schema.
And we _have_ to do that taking into account the big data scenario where
more than often the relational paradigm of the pure olap isn't a direct
fit. We are working on it and I think we're on the right track.

Guys, don't get me wrong here. I am not doing any kind of considerations on
the merits of M3 or M4 - I don't even have knowledge to comment there;

I simply believe that we should be honest about our current thoughts and
intentions; They may be the right choices, the wrong choices (obviously we
hope it's the first, and we may change our minds tomorrow) but it's only
fair that people are aware of them and know what to expect so they can make
their own choices accordingly.



Cheers


-pedro




On Wed, Apr 6, 2016 at 10:50 AM, Stefano Celati <stefano.celati at bnova.it>
wrote:

> Hi Pedro,
> sorry for my reply but, as a long-standing EE Partner, I don't agree that
> M3 is the best solution for the needs of our customers.
>
> M4 introduced some "fresh" concepts that nowadays I feel are somehow
> essential for a modern OLAP engine: I'm talking about using outer joined
> tables, creating measures based on a dimension attribute, cross-joining
> several fact_tables, not to mention a more "DWH-like" approach in defining
> a phisical vs a logical schema...
>
> I don't blame Pentaho if it doesn't think it's worth to invest on it, I'm
> simply talking from the field where I live every day, clashing with some
> Enterprise tools that have been addressed in that direction from a long
> time, and I personally believe that to stay on the cutting edge, you should
> also look around and leverage your own technology to improve a product that
> is already at a good level, in the ground of Enterprise solutions.
>
> Best regards
> Stefano
>
> Il 06/04/2016 11:33, mondrian-request at pentaho.org ha scritto:
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> Today's Topics:
>
>    1. Re: Mondrian 4, Pentaho 6 CE, Saiko (Pedro Alves)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 6 Apr 2016 10:33:21 +0100
> From: Pedro Alves <pmgalves at gmail.com> <pmgalves at gmail.com>
> Subject: Re: [Mondrian] Mondrian 4, Pentaho 6 CE, Saiko
> To: Mondrian developer mailing list <mondrian at pentaho.org> <mondrian at pentaho.org>
> Message-ID:
> 	<CAC_LyUhqsrQvmcLgj5WxQ897T3Gq44o=UtM7YO8NQr+ZJBN4Ag at mail.gmail.com> <CAC_LyUhqsrQvmcLgj5WxQ897T3Gq44o=UtM7YO8NQr+ZJBN4Ag at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Guys, simply put, pentaho uses and will continue to use Mondrian 3.
>
> For the needs of our users (customers and community) m4, unfortunately,
> isn't ready yet and to get there there's a heavy investment involved that
> we're not sure if makes sense for us to do alone. To be clear, by "it's not
> ready", I'm talking about functionality parity to what can be done today
> with m3. While it's clear to be that, architecturally speaking, m4 may be
> superior, in the field that's not reason alone to make such an important
> decision.
>
> My recommendation is, within pentaho, use Mondrian 3. It's what we
> maintain, fix and improve
>
> -pedro
>
>
> On Apr 6, 2016 10:23 AM, "Tom Barber" <tom at analytical-labs.com> <tom at analytical-labs.com> wrote:
>
>
> Bleh, I might have been lying that might be EE only. 10 mins, I'll see
> what I can dig up.
>
> --------------
>
> Director Meteorite.bi - Saiku Analytics Founder
> Tel: +44(0)5603641316
>
> (Thanks to the Saiku community we reached our Kickstart<http://kickstarter.com/projects/2117053714/saiku-reporting-interactive-report-designer/> <http://kickstarter.com/projects/2117053714/saiku-reporting-interactive-report-designer/>
> goal, but you can always help by sponsoring the project<http://www.meteorite.bi/products/saiku/sponsorship> <http://www.meteorite.bi/products/saiku/sponsorship>)
>
> On 6 April 2016 at 10:22, Tom Barber <tom at analytical-labs.com> <tom at analytical-labs.com> wrote:
>
>
> FWIW the stuff in the blog post doesn't work for Saiku in 5.x either :)
>
> Basically the later versions of 5.x and 6 ship Mondrian 4 for the Mongo
> stuff, you can't drop the libs in, the question is though, can we expose
> that engine to Saiku as a BI Server plugin. I added some connectivity stuff
> to tell Saiku to use mondrian 4 with certain data sources in the BI server,
> but I don't think the OSGI based Mondrian 4 engine is available.
>
> Tom
>
> --------------
>
> Director Meteorite.bi - Saiku Analytics Founder
> Tel: +44(0)5603641316
>
> (Thanks to the Saiku community we reached our Kickstart<http://kickstarter.com/projects/2117053714/saiku-reporting-interactive-report-designer/> <http://kickstarter.com/projects/2117053714/saiku-reporting-interactive-report-designer/>
> goal, but you can always help by sponsoring the project<http://www.meteorite.bi/products/saiku/sponsorship> <http://www.meteorite.bi/products/saiku/sponsorship>)
>
> On 6 April 2016 at 10:18, Conrad Crampton <conrad.crampton at secdata.com> <conrad.crampton at secdata.com>
> wrote:
>
>
> Thanks for comments so far (and the offer Tom).
> So, as it stands currently my choices appear to use BI Server 6 CE with
> Mondrian 3.11 (with Saiku too) or move down to 5.x with 4 (following the
> blog post mentioned previously).
>
> I?m interested in the comment ". Pentaho 6 ships Mondrian 4 in the OSGI
> land? - does this mean that I can simply drop in the Mondrian 4 libs into
> BI Server lib directory?
>
> Thanks
> Conrad
>
> From: <mondrian-bounces at pentaho.org> <mondrian-bounces at pentaho.org> on behalf of Tom Barber <tom at analytical-labs.com>
> Reply-To: Mondrian developer mailing list <mondrian at pentaho.org> <mondrian at pentaho.org>
> Date: Wednesday, 6 April 2016 at 08:29
> To: Mondrian developer mailing list <mondrian at pentaho.org> <mondrian at pentaho.org>
> Subject: Re: [Mondrian] Mondrian 4, Pentaho 6 CE, Saiko
>
> For Pentaho 5.x I did the CM4 plugin which sorta worked for a while.
> Pentaho 6 ships Mondrian 4 in the OSGI land, if someone has the time, or
> wants to sponsor an investigation into exposing that library to Saiku,
> we'll be able to hook up to it with little difficulty, just depends how
> easy it is to access.
>
> Tom
>
> --------------
>
> Director Meteorite.bi - Saiku Analytics Founder
> Tel: +44(0)5603641316
>
> (Thanks to the Saiku community we reached our Kickstart<http://kickstarter.com/projects/2117053714/saiku-reporting-interactive-report-designer/> <http://kickstarter.com/projects/2117053714/saiku-reporting-interactive-report-designer/>
> goal, but you can always help by sponsoring the project<http://www.meteorite.bi/products/saiku/sponsorship> <http://www.meteorite.bi/products/saiku/sponsorship>)
>
> On 6 April 2016 at 08:27, Dan Keeley <dan at dankeeley.co.uk> <dan at dankeeley.co.uk> wrote:
>
>
> This is a good question, unfortunately there's no easy answer. I
> suggest posting it on the Pentaho community mailing list though, you may
> get more traction.
>
>
>
> Essentially Pentaho just haven't got the guts (or confidence in their
> test team) to move to Mondrian 4 - everything they've done recently shows
> no commitment to it.  Even to the point where new features are still going
> into Mondrian3.  I spoke to the head of dev about it a few years ago and he
> just said why do you want mondrian 4? he couldnt see why I was asking.
>
>
>
> But more often than not they do surprise us.  So I could be wrong :)
>
>
>
> On Tue, 5 Apr 2016 16:30:50 +0000, Conrad Crampton <conrad.crampton at SecData.com> wrote:
>
> Hi,
> I?ve read the blog post [1] by Will Gorman which discusses Mondrian 4
> installation into Pentaho 5.1, but this is from June 2014. I am looking for
> something a bit more recent that points in the direction of using the
> latest Pentaho 6 CE with Mondrian 4 (and preferably with Saiku).
> I have the Mondrian in Action book which is based on Mondrian 4 so
> coming to this a new it makes sense (to me) to start on v4, but I am a
> little frustrated by Pentaho CE only having Mondrian v3.11 with it. I
> haven?t tried it (so that may just be the answer) but will the instructions
> in [1] get me to where I want to be with Mondrian 4 and BI Server 6 CE (and
> will Mondrian be able to be work with all the other data sources)?
> Sorry for all the questions, just trying to get started from a new
> installation with little knowledge.
> Thanks
> Conrad
> [1] http://www.willgorman.com/?p=58
>
>
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> End of Mondrian Digest, Vol 112, Issue 13
> *****************************************
>
>
> --
> Stefano Celati
> <stefano.celati at bnova.it>stefano.celati at bnova.it
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