[rules-users] Patterns in Memory

[Barry K]

The rules are not recompiled.  
Sorry I do not have code to provide for the memory footprint, we use I3 to
get a snapshot of all java objects in memory from each server.

Thanks
Barry


Greg Barton wrote:
> 
> Do you mean org.drools.rule.Pattern?  If so, it is created when the rules
> are compiled, and with identical rulesets I'd expect you should have the
> same number on each server.  Edson or Mark would know if that's not the
> case.
> 
> Are your rules ever recompiled between runs?  
> 
> Can you provide the code that takes the snapshot?
> 
> --- On Tue, 3/3/09, Barry K <barry.knapp at railinc.com> wrote:
> 
>> From: Barry K <barry.knapp at railinc.com>
>> Subject: Re: [rules-users] Patterns in Memory
>> To: rules-users at lists.jboss.org
>> Date: Tuesday, March 3, 2009, 11:15 AM
>> The implementation uses a stateless rules engine and the
>> memory snapshots are
>> taken when the engines are idle.   The Patterns object, I
>> expect is just the
>> various condition and action nodes of each rule in the
>> rulebase.
>> 
>> Thanks for your reply
>> Barry
>> 
>> 
>> 
>> Greg Barton wrote:
>> > 
>> > They have the same rules, but do they have the same
>> data?
>> > 
>> > When you refer to "number of patterns" do
>> you mean the number of matches
>> > between rules and working memory objects?  The
>> increase of that number is
>> > entirely dependent on the structure of your rules.  Do
>> they modify objects
>> > in working memory or add new objects?
>> > 
>> > --- On Tue, 3/3/09, Barry K
>> <barry.knapp at railinc.com> wrote:
>> > 
>> >> From: Barry K <barry.knapp at railinc.com>
>> >> Subject: [rules-users] Patterns in Memory
>> >> To: rules-users at lists.jboss.org
>> >> Date: Tuesday, March 3, 2009, 10:47 AM
>> >> Do the number of patterns in memory stabilize
>> after the
>> >> rulebase is created
>> >> or can transactions increase the number of
>> patterns?
>> >> 
>> >> Reason I ask is I have 2 servers with the same
>> rules loaded
>> >> and one shows
>> >> 3000 patterns in memory but the other only shows
>> 2300.
>> >> 
>> >> 
>> >> Thanks
>> >> Barry
>> >> -- 
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>> >>
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>> at
>> >> Nabble.com.
>> >> 
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