[UIMA-1125] Modify UIMA-AS synchronization when deserializing CASes

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.3AS
• Component/s: Async Scaleout
• Assignee: Unassigned
• Reporter: Jaroslaw Cwiklik
• Created: 24/Jul/08 14:50
• Updated: 15/Sep/09 16:02
• Resolved: 25/Jul/08 14:53

Description

The de-serialization of CASes is currently synchronized in the uima-as code. This creates a bottleneck when multiple listeners threads are used, effectively creating a processing funnel. This is especially true for aggregates which do little processing and spent most time de-serializing and serializing CASes. The synchronization needs only be applied while merging secondary CASes. In all other cases, synchronization around deserialization should not be used.