Drools in multithreaded env

[Jin-7]

Env setup:
1. There is only one instance of working memory.
2. There are at lease two threads constantly insert/update/delete facts from the
same workings memory based on some incoming messages.
3. I use temporal rules (duration clause) as well. When it is fired, it will be
on the third thread.

Question:
I can synchronize the first two threads by acquiring lock on the working memory.
But how do I synchronize the temporal rules thread especially on the left hand
side of the rules?


Thanks,
Jin

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[Cabou, Carl]

Hi all,

I'm using Drools 4.0.7.

I use the Drools api in my application with the rule Agent as describe
in the section 9.4.4.1 of the documentation and it works fine.

Since our application is running under weblogic 8.1, we must use JBoss
for BRMS because weblogic 8.1 is not java5 compliant, but I don't want
to use multiple app servers.

So the question is : what is best for performance ? use the BRMS at
runtime (< url > property) on JBoss or use only packages files on disk
(< file > property).

Anyway I will do perf benchmarks, I'm assuming it is better with package
files but I'd like to have some feedback before...


Regards,

Carl.


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[Vikas Phonsa-2]

Hi All,

Anybody using BRMS in Weblogic? What's the JVM heap size that you are
using ?

I'm using 1 GB, but the server keeps going down (into ADMIN status).
There are no exceptions in the logs. But there are several messages
related to memory usage in logs.

Anybody experienced anything like that.

Thanks in advance.
Vikas


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