Thank you for the quick answer, this is the information I wanted to know. It is well described in JavaDoc http://myfaces.apache.org/orchestra/myfaces-orchestra-core/apidocs/org/apache/myfaces/orchestra/CoreConfig.html#SERIALIZE_REQUESTS, but I didn't find this information on the project web page. Generally I also think it is bad idea to change default concurrency behavior of accessing to scoped objects and even not advise of it.
Regards Vojtech RE: Concurrent requests and Orchestra Mario Ivankovits Thu, 20 Aug 2009 02:26:25 -0700 Hi! A PersistenceContext is not thread safe, therefore, Orchestra tries to avoid that by locking the request. It would be nice, if Orchestra does this just for requests requireing a PersistenceContext. But till today, we did not manage to spend some time to optimize that code. You can set the webapp init parameter org.apache.myfaces.orchestra.CoreConfig:SERIALIZE_REQUESTS to false so that Orchestra does not check for thread safety. You then have to ensure threadsafety against the PersistenceContext yourself (which might not be easy … not to say, impossible :-( ) Ciao, Mario
