IIRC, there were some rather positive statements during the evoluion
of 5.x that a session is thread-safe.
---------- Forwarded message ----------
From: Davide Sottara <dsotty(a)gmail.com>
Date: Wed, 12 Feb 2014 19:12:32 +0100
Subject: Re: [rules-users] ArrayIndexOutOfBoundsException under high
events load in drools CEP
I can see a few independent issues here.
Drools 5.x was not designed to be thread-safe in general: there are some
critical races that may arise when multiple threads are inserting
facts in parallel. Many have been patched in 5.6, but the real
solution to the problem will be introduced in the 6.x series.
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