[jboss-dev-forums] [Design of JBoss Transaction Services] - Thread safety and rollback

[adrian@jboss.org]

I know this is "invalid usage", but it still shouldn't lead to broken behaviour. :-)

See the test in jboss-4.2

  | $ ./build.sh one-test -Dtest=org.jboss.test.tm.test.CompetingRollbackStressTestCase
  | 

This is stress test for a race condition (two threads invoking rollback
"at the same time"). I'm seeing the transaction synchronizations getting invoked twice.


  |   <testcase classname="org.jboss.test.tm.test.CompetingRollbackStressTestCase" name="testExecuteSQLDuringRollback" time="7.132">
  |     <error message="Synchronization invoked 2 times" type="org.jboss.test.util.ejb.RemoteTestException">java.lang.RuntimeException: Synchronization invoked 2 times
  |         at org.jboss.test.tm.test.CompetingRollbackStressTestCase$Main.test(CompetingRollbackStressTestCase.java:136)
  |         at org.jboss.test.tm.test.CompetingRollbackStressTestCase$TestRunnable.run(CompetingRollbackStressTestCase.java:193)
  |         at java.lang.Thread.run(Thread.java:595)
  | 

NOTE: This is a stress test, so you'll probably have to make it do
lots of iterations to reproduce the problem. e.g. start jboss with


  | $ ./run.sh -Djbosstest.iterationcount=10000
  | 

and maybe run it a few times?

View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4114750#4114750

Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4114750