[
https://issues.jboss.org/browse/JGRP-1759?page=com.atlassian.jira.plugin....
]
Richard Achmatowicz commented on JGRP-1759:
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Passing on Windows 7:
{noformat}
------------- testSendingOfMsgsOnUnconnectedChannel -----------
--> Creating rendezvous
--> B: installView() waiting on rendezvous until message has been received
--> A: sending message
--> B: installView() was unblocked
--> B: flushing queue (1 element(s))
A: received message from A: hello from A
B: received message from A: hello from A
A: [A|1] (2) [A, B] B: [A|1] (2) [A, B]
B: received message from B: This message would trigger an exception if the channel was
not yet connected
A: received message from B: This message would trigger an exception if the channel was
not yet connected
--> Deleting rendezvous
With org.jboss.byteman.verbose=true:
------------- testSendingOfMsgsOnUnconnectedChannel -----------
Rule.execute called for CreateRendezvous_2
HelperManager.install for helper class org.jboss.byteman.rule.helper.Helper
calling activated() for helper class org.jboss.byteman.rule.helper.Helper
Default helper activated
calling installed(CreateRendezvous) for helper classorg.jboss.byteman.rule.helper.Helper
Installed rule using default helper : CreateRendezvous
CreateRendezvous execute
--> Creating rendezvous
Rule.execute called for FlushQueue_4
HelperManager.install for helper class org.jboss.byteman.rule.helper.Helper
calling installed(FlushQueue) for helper classorg.jboss.byteman.rule.helper.Helper
Installed rule using default helper : FlushQueue
FlushQueue execute
Rule.execute called for MessageSending_1
HelperManager.install for helper class org.jboss.byteman.rule.helper.Helper
calling installed(MessageSending) for helper classorg.jboss.byteman.rule.helper.Helper
Installed rule using default helper : MessageSending
MessageSending execute
Rule.execute called for MessageReception_6
Rule.execute called for InstallView_0
HelperManager.install for helper class org.jboss.byteman.rule.helper.Helper
calling installed(InstallView) for helper classorg.jboss.byteman.rule.helper.Helper
Installed rule using default helper : InstallView
InstallView execute
HelperManager.install for helper class org.jgroups.tests.helpers.BecomeServerTestHelper
calling activated() for helper class org.jgroups.tests.helpers.BecomeServerTestHelper
Default helper activated
calling installed(MessageReception) for helper
classorg.jgroups.tests.helpers.BecomeServerTestHelper
Installed rule using default helper : MessageReception
MessageReception execute()
--> B: installView() waiting on rendezvous until message has been received
--> A: sending message
--> B: installView() was unblocked
Rule.execute called for FlushQueue_4
A: received message from A: hello from A
FlushQueue execute
--> B: flushing queue (1 element(s))
A: [A|1] (2) [A, B]
B: [A|1] (2) [A, B]
Rule.execute called for DeleteRendezvous_3
HelperManager.install for helper class org.jboss.byteman.rule.helper.Helper
calling installed(DeleteRendezvous) for helper classorg.jboss.byteman.rule.helper.Helper
Installed rule using default helper : DeleteRendezvous
DeleteRendezvous execute
--> Deleting rendezvous
B: received message from A: hello from A
B: received message from B: This message would trigger an exception if the channel was not
yet connected
{noformat}
BecomeServerTest.testSendingOfMsgsOnUnconnectedChannel deadlocks
----------------------------------------------------------------
Key: JGRP-1759
URL:
https://issues.jboss.org/browse/JGRP-1759
Project: JGroups
Issue Type: Bug
Affects Versions: 3.5
Environment: Windows 2008, x86_64
Reporter: Richard Achmatowicz
Assignee: Bela Ban
Running the Byteman tests in the QA lab, this test deadlocks in a repeatable fashion and
causes the testsuite to hang.
The test makes use of the Byteman rendezvous built-in function to suspend (and reorder)
thread execution. It appears that with threads re-ordered, certain parts of JGroups block
in such a way that no progress is made and the test deadlocks.
.
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