Issue #337 has been updated by Clément OUDOT.

Target version changed from 2.0.x branch to 2.0rc2
% Done changed from 0 to 100


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Bug #337: Memory leak in ScriptingEvaluator
http://tools.lsc-project.org/issues/337

Author: Stéphane Bond
Status: Closed
Priority: High
Assigned to: Sébastien Bahloul
Category: Core
Target version: 2.0rc2
Problem in version: 


We have integrated LSC 2.0 (trunk) in a web service to launch different 
synchronization tasks on demand. Our service calls directly SimpleSynchronize 
inside the web server, because it's faster than launching a new java process 
every time.

However, an OutOfMemory error occurs after thousands of calls. The profiler 
show that the ScriptingEvaluator.instances collection was in cause. The 
ThreadPoolExecutor generate random thread names, so the cache (which is by 
thread name) keeps thousands of ScriptingEvaluator instances.

We provide a patch to keep only the 15 last ScriptingEvaluator instances using 
an LRUMap. After the change, the server memory usage stays below 10mb, even 
after 5000 sync tasks.



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