[rules-users] Analysing OutOfMemory, too many RightTuple

[Wolfgang Laun]

Most of the time, a look on a (representative) sample of the rules is
enough for some watchers of this list to drop a few pointers.

There are some Best Practices, but people tend to come up with new
counter-examples ;-)

-W


On 11/06/2014, bvoisin <benoit.voisin at igc-erp.com> wrote:
> Hi all,
>
> With my set of rules and data, I get OutOfMemory issues. It works fine with
> smaller sets of Data.
>
> Looking with a HeapDump analyzer, I found that there was thousands of
> RightTuples. In a previous run, before some rules fixes, I also add tons of
> JoinNodeLeftTuple's.
> They seem to come from poorly written rules; unfortunately, I find it quite
> difficult to find and correct the conditions/rules causing these tons of
> RightTuple.
>
> Is there any analysis option/tool that can give information on the Left Hand
> Side (tuples and sinks), or is there any BestPractices on how to correct the
> rules to limit this behavior?
>
> I use Drools 6.1.0.Beta4, with Phreak enabled, but had similary issues with
> 6.0.0 or 6.0.1
>
> Regards,
> Benoît
>
>
>
> --
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> Sent from the Drools: User forum mailing list archive at Nabble.com.
>
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