[rules-users] Can Drools supply large Knowledge Base?

[Wolfgang Laun]

Do you think that you are on the right track at all?

A simple, single Java if built this way to have a size of several GBs
is a no-no.

-W


2011/12/12 WangRamon <ramon_wang at hotmail.com>:
> Hi Thomas
>
> It's a tiny rule for now, but in the future i will append more conditions
> automatically by machines by analyzing some user logs, the size of the rule
> file may grow to several GBs and that's what i'm worrying about?
>
> Thanks
> Ramon
>
> ________________________________
> From: TSwindells at nds.com
> To: rules-users at lists.jboss.org; rouvas at di.uoa.gr
> Date: Mon, 12 Dec 2011 09:54:01 +0000
> Subject: Re: [rules-users] Can Drools supply large Knowledge Base?
>
> That’s not a big rule, that is a tiny rule.
>
> So I’m still not sure what you are actually worrying about and why you think
> you may have an issue.
>
>
>
> Thomas
>
>
>
> From: rules-users-bounces at lists.jboss.org
> [mailto:rules-users-bounces at lists.jboss.org] On Behalf Of WangRamon
> Sent: 12 December 2011 09:44
> To: rouvas at di.uoa.gr; rules-users at lists.jboss.org
> Subject: Re: [rules-users] Can Drools supply large Knowledge Base?
>
>
>
> Hi Stathis
>
> You're probably right, maybe it's a wrong question, i'm new to Drools, so I
> copy the rule sample from user guide as below to better explain, that's what
> i need, but the rule will be automatically generated in the future..
>
>
> package com.company.license
>
>
>
> rule "Is of valid age"
>
> when
>
>     $a : Applicant( age < 18 )
>
> then
>
>     $a.setValid( false );
>
> end
>
>
> So in the future the rule may include more and more conditions like below:
>
>
>
>
>
>
> rule "Is of valid age2"
>
> when
>
>     $a : Applicant( age > 18 and age < 20 )
>
> then
>
>
>
> ...
>
> end
>
>
> So it may grow to be a very large rule(?), and this is actually my question:
> how to handle this big rule? Thanks you guys
>
> Cheers
> Ramon
>
>> Date: Mon, 12 Dec 2011 11:33:10 +0200
>> From: rouvas at mm.di.uoa.gr
>> To: rules-users at lists.jboss.org
>> Subject: Re: [rules-users] Can Drools supply large Knowledge Base?
>>
>> WangRamon wrote:
>> >
>> > Hi Guys I'm still confused about this question, let's say i may have a
>> > very large rule set, how can Drools support this case, will it load
>> > every
>> > rule into memory? Any idea? Thank you guys. CheersRamon
>>
>> You are either asking the wrong question or you do not understand what you
>> are asking.
>>
>> In your previous post, you mentioned a Knowledge Base of 100GB.
>> In this post you are talking about a rule set.
>> These are different things.
>> A Knowledge Base contains rules *and* facts and can indeed be quite large.
>> A rule set contains only rules. For a rule set to grow this much, it means
>> you have seriously misunderstand your problem. I would suggest you go back
>> to the drawing board.
>>
>> Real-world example:
>> Rule set of about 400 rules.
>> Facts : In the order to 100.000.
>> Command line execution shows an approximate 400MB RAM consumption, meaning
>> with the JDK and all (not only Drools memory consumption).
>>
>> So, unless you want to hear from someone more experienced than me, I'd
>> suggest you re-phrase your question by stating the exact problem you are
>> facing or anticipating.
>>
>> Cheers,
>> -Stathis
>>
>>
>>
>> > From: ramon_wang at hotmail.com> &g t; To: rules-users at lists.jboss.org
>> > Date: Thu, 8 Dec 2011 11:59:21 +0800
>> > Subject: [rules-users] Can Drools supply large Knowledge Base?
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> > Hi All
>> >
>> > I'm new to Drools, I will build a very large Knowledge Base, let's say
>> > it
>> > will be larger than 100GB, the files will be stored in a distribute
>> > database, so can Droools supply this large Knowledge Base? Any solution?
>> > Thank you very much.
>> >
>> > Cheers
>> > Ramon
>> >
>> >
>> > _______________________________________________
>> > rules-users mailing list
>> > rules-users at lists.jboss.org
>> > https://lists.jboss.org/mailman/listinfo/rules-users
>> > _______________________________________________
>> > rules-users mailing list
>> > rules-users at lists.jboss.org
>> > https://lists.jboss.org/mailman/listinfo/rules-users
>> >
>>
>>
>> _______________________________________________
>> rules-users mailing list
>> rules-users at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
> ________________________________
>
> **************************************************************************************
> This message is confidential and intended only for the addressee. If you
> have received this message in error, please immediately notify the
> postmaster at nds.com and delete it from your system as well as any copies. The
> content of e-mails as well as traffic data may be monitored by NDS for
> employment and security purposes. To protect the environment please do not
> print this e-mail unless necessary.
>
> NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18
> 4EX, United Kingdom. A company registered in England and Wales. Registered
> no. 3080780. VAT no. GB 603 8808 40-00
> **************************************************************************************
>
> _______________________________________________ rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>