[rules-users] Strange Performance Problem in Rules

[ravibhatt]

Hi all,

I have a rule that looks like below:

Rule "CheckSomeConditionRule"

When

$project:Project(status==STATUS_ENUM.DATA_FETCHED)
$rule:Rule(name=="CheckSomeConditionRule")

$processResult1:ProcessResult(projectId==$project.id, inputSource memberOf
$rule.inputTableList
                      , outputTable=="")

$processResult2:ProcessResult(projectId==$project.id, inputSource memberOf
$rule.inputTableList
                      inputSource!=$processResult1.inputSource,
this!=$processresult1, outputTable=="")

$processData1:ProcessData(parent==$processResult1)

$processData2:ProcessData(this!=$processData1,parent==$processResult2
                     
,eval($processData2.getValue("a").equalsIgnoreCase($processData1.getValue("a")))
                     
,eval($processData2.getValue("b").equalsIgnoreCase($processData1.getValue("b")))


Then
     /////do important stuff here
end

I am trying to run this rule with two data set (represented by ProcessResult
class that holds several rows in terms of ProcessData objects), each data
set has 10000 records only. (In real usages, we will have atleast a million
records in both these data sets.)

I am inserting all of the rows i.e all rows represented in terms of
ProcessData objects. I am inserting some 20000+ objects to test this. While
inserting, first 10000 records are getting inserted fairly quickly, the next
10000 records are taking a lot of time.. in tunes of 15 -30 mins. 

I understand that drools is trying to create activations as i insert facts
but this seems to be too slow. is it eval in my conditions that is making it
slower? or is it equalsIgnoreCase method? if i use == instead of
equalsIgnoreCase my rule never gets fired. 

I am doing something wrong? please advice. 

My data structure is inherently hierarchical:

  ProcessResult (represnts a table)
     contains
        ProcessData (represents rows)
           contains 
              list of Dimensions & list of Metrics (accessed via getValue()
method above)


Thanks in Advance,
Ravi
 
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