I join a zip file of my maven project which I run under Eclipse Helios. As you will see, I use the default configuration of InfiniSpan. I have tested with no L2 cache (all is good) and with Infinispan L2 cache (all is bad). I have tested with Hsqldb and MySql databases (my tests encounters the same Locks apparently). I have tested with 8 or 32 threads, and for 10 or 1000 requets per thread (cf. lines 19-23 in src/test/java/infiniSpanTest/Runner.java). Don't expect good performances ... I have added a lot of calls to System.out.println() to show my threads running (and waiting). Running the test : ------------------ You can run the Hsqldb test by : starting an Hsqldb database with startHsqldb.bat start the first node with InfiniSpanRun-1.launch start the second node with InfiniSpanRun-2.launch With a MySql database, you must obviously start this database and you must empty tables before running the test nodes (in case of a previous test didn't finished) : start the first node with InfiniSpanRun-1.launch start the second node with InfiniSpanRun-2.launch With Hsqldb or MySql database configuration : --------------------------------------------- If you want to test with MySql, you must update the following files : src/main/java/META-INF/persistence.xml change hibernate.dialect conf/openejb.xml change JdbcDriver change JdbcUrl change UserName change Password change ValidationQuery With or without infinispan configuration : ------------------------------------------ If you want to test without Infinispan, you must update the following files : src/main/java/META-INF/persistence.xml uncomment the pêrsistence unit without cache comment the persistence unit with cache