4:14 a.m.
Hi All,
I am using JBOSS Drools 5.0. The problem which I am currently facing is
concurrent execution of Rules.
I am using RuleBase to get Session object
i.e.
RuleBase ruleBase = RuleBaseFactory.newRuleBase();
StatelessSession session = ruleBase.newStatelessSession();
Session.execute(ArrayList of Facts);
In the application I am creating separate RuleBase and session object for each request of
process.
Now the Problem is as follows :-
There are currently two users logged in the System.
Suppose User 1 clicks a button to process 100 members of Data using Rules and User 2
clicks same button to process same 100 members of Data,
When request of User 1 comes to Rule Engine, it starts processing its data but as User 2
comes to Rule Engine, The engine stops processing the request
of User 1 and continues processing Request of User 2 because of which I am not getting
same output in both the cases though the Input to Rules is same.
If I do the process one after the another then I am getting correct values but it is not
working for Concurrent execution.
Thanks & Regards,
Nikhil S. Kulkarni
MASTEK LTD.
In the US, we're called MAJESCOMASTEK
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5:13 a.m.
If you create another session object for each user request, there is no
concurrency issue in the rule engine.
How do you collect and return the output? Is this sufficiently guarded
against race conditions?
-W
2011/1/17 Nikhil S. Kulkarni <Nikhil.Kulkarni(a)mastek.com>
Hi All,
I am using JBOSS Drools 5.0. The problem which I am
currently facing is concurrent execution of Rules.
I am using RuleBase to get Session object
i.e.
RuleBase ruleBase = RuleBaseFactory.newRuleBase();
StatelessSession session = ruleBase.newStatelessSession();
Session.execute(ArrayList of Facts);
In the application I am creating separate RuleBase and session object for
each request of process.
Now the Problem is as follows :-
There are currently two users logged in the System.
Suppose User 1 clicks a button to process 100 members of Data using Rules
and User 2 clicks same button to process same 100 members of Data,
When request of User 1 comes to Rule Engine, it starts processing its data
but as User 2 comes to Rule Engine, The engine stops processing the request
of User 1 and continues processing Request of User 2 because of which I am
not getting same output in both the cases though the Input to Rules is same.
If I do the process one after the another then I am getting correct values
but it is not working for Concurrent execution.
*Thanks & Regards,*
*Nikhil S. Kulkarni*
* *
MASTEK LTD.
In the US, we're called MAJESCOMASTEK
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Opinions expressed in this e-mail are those of the individual and not that of Mastek
Limited, unless specifically indicated to that effect. Mastek Limited does not accept any
responsibility or liability for it. This e-mail and attachments (if any) transmitted with
it are confidential and/or privileged and solely for the use of the intended person or
entity to which it is addressed. Any review, re-transmission, dissemination or other use
of or taking of any action in reliance upon this information by persons or entities other
than the intended recipient is prohibited. This e-mail and its attachments have been
scanned for the presence of computer viruses. It is the responsibility of the recipient to
run the virus check on e-mails and attachments before opening them. If you have received
this e-mail in error, kindly delete this e-mail from desktop and server.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Nikhil S. Kulkarni -
Wolfgang Laun