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Posted to jdo-dev@db.apache.org by "Jörg von Frantzius (JIRA)" <ji...@apache.org> on 2006/03/01 18:21:39 UTC
[jira] Erstellt: (JDO-324) Derby "ERROR 40XL1" in multithreaded
test "RefreshAllNoParameterSideEffects"
Derby "ERROR 40XL1" in multithreaded test "RefreshAllNoParameterSideEffects"
----------------------------------------------------------------------------
Key: JDO-324
URL: http://issues.apache.org/jira/browse/JDO-324
Project: JDO
Type: Bug
Components: tck20
Versions: JDO 2 rc1
Reporter: Jörg von Frantzius
When using latest JPOX nightly (01-Mar-2006 04:21), I get a "ERROR 40XL1: A lock could not be obtained within the time requested" Derby error (see next attachment for log file). This happens while running RefreshAllNoParameterSideEffects, which is multithreaded, and it happens for both threads.
This is with Windows XP SP2 and JDK 1.4.2_09 on a dual core machine. Maybe the fact that it is dual core leads to different timing than single core?
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[jira] Commented: (JDO-324) Derby "ERROR 40XL1" in multithreaded
test "RefreshAllNoParameterSideEffects"
Posted by "Craig Russell (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/JDO-324?page=comments#action_12368341 ]
Craig Russell commented on JDO-324:
-----------------------------------
I looked at the test, and it appears that the test is not correct. It is too complex for what it's testing, and doesn't even test what the assertion says.
For now, I propose adding the three test cases to the exclude list and fix this later.
> Derby "ERROR 40XL1" in multithreaded test "RefreshAllNoParameterSideEffects"
> ----------------------------------------------------------------------------
>
> Key: JDO-324
> URL: http://issues.apache.org/jira/browse/JDO-324
> Project: JDO
> Type: Bug
> Components: tck20
> Versions: JDO 2 rc1
> Reporter: Jörg von Frantzius
> Attachments: derby-dsid-pm-junit.txt
>
> When using latest JPOX nightly (01-Mar-2006 04:21), I get a "ERROR 40XL1: A lock could not be obtained within the time requested" Derby error (see next attachment for log file). This happens while running RefreshAllNoParameterSideEffects, which is multithreaded, and it happens for both threads.
> This is with Windows XP SP2 and JDK 1.4.2_09 on a dual core machine. Maybe the fact that it is dual core leads to different timing than single core?
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[jira] Aktualisiert: (JDO-324) Derby "ERROR 40XL1" in multithreaded
test "RefreshAllNoParameterSideEffects"
Posted by "Jörg von Frantzius (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/JDO-324?page=all ]
Jörg von Frantzius updated JDO-324:
-----------------------------------
Attachment: derby-dsid-pm-junit.txt
> Derby "ERROR 40XL1" in multithreaded test "RefreshAllNoParameterSideEffects"
> ----------------------------------------------------------------------------
>
> Key: JDO-324
> URL: http://issues.apache.org/jira/browse/JDO-324
> Project: JDO
> Type: Bug
> Components: tck20
> Versions: JDO 2 rc1
> Reporter: Jörg von Frantzius
> Attachments: derby-dsid-pm-junit.txt
>
> When using latest JPOX nightly (01-Mar-2006 04:21), I get a "ERROR 40XL1: A lock could not be obtained within the time requested" Derby error (see next attachment for log file). This happens while running RefreshAllNoParameterSideEffects, which is multithreaded, and it happens for both threads.
> This is with Windows XP SP2 and JDK 1.4.2_09 on a dual core machine. Maybe the fact that it is dual core leads to different timing than single core?
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[jira] Commented: (JDO-324) Derby "ERROR 40XL1" in multithreaded
test "RefreshAllNoParameterSideEffects"
Posted by "Michael Bouschen (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/JDO-324?page=comments#action_12368352 ]
Michael Bouschen commented on JDO-324:
--------------------------------------
I agree, the test is not correct.
I think we do not need multiple threads to test the assertion. Here is what I think the test should do:
- Setup creates a new instance, commit the trsnaction and stores the oid in an instance variable.
- Create a pm, start an optimistic transaction and read the object with pm.getObjectById using the stored oid.
- Create another pm, start a new transaction, read the same object, update it and commit the second transaction.
- The first transaction calls pm.refresh for the object, updates it and commits the transaction.
The above should not result in an exception because the refresh call synchronizes the cache with the current state of the datastore, so there is no parallel update.
> Derby "ERROR 40XL1" in multithreaded test "RefreshAllNoParameterSideEffects"
> ----------------------------------------------------------------------------
>
> Key: JDO-324
> URL: http://issues.apache.org/jira/browse/JDO-324
> Project: JDO
> Type: Bug
> Components: tck20
> Versions: JDO 2 rc1
> Reporter: Jörg von Frantzius
> Attachments: derby-dsid-pm-junit.txt
>
> When using latest JPOX nightly (01-Mar-2006 04:21), I get a "ERROR 40XL1: A lock could not be obtained within the time requested" Derby error (see next attachment for log file). This happens while running RefreshAllNoParameterSideEffects, which is multithreaded, and it happens for both threads.
> This is with Windows XP SP2 and JDK 1.4.2_09 on a dual core machine. Maybe the fact that it is dual core leads to different timing than single core?
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[jira] Assigned: (JDO-324) Derby "ERROR 40XL1" in multithreaded
test "RefreshAllNoParameterSideEffects"
Posted by "Craig Russell (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/JDO-324?page=all ]
Craig Russell reassigned JDO-324:
---------------------------------
Assignee: Michelle Caisse
> Derby "ERROR 40XL1" in multithreaded test "RefreshAllNoParameterSideEffects"
> ----------------------------------------------------------------------------
>
> Key: JDO-324
> URL: http://issues.apache.org/jira/browse/JDO-324
> Project: JDO
> Issue Type: Bug
> Components: tck20
> Affects Versions: JDO 2 rc1
> Reporter: Jörg von Frantzius
> Assigned To: Michelle Caisse
> Attachments: derby-dsid-pm-junit.txt
>
>
> When using latest JPOX nightly (01-Mar-2006 04:21), I get a "ERROR 40XL1: A lock could not be obtained within the time requested" Derby error (see next attachment for log file). This happens while running RefreshAllNoParameterSideEffects, which is multithreaded, and it happens for both threads.
> This is with Windows XP SP2 and JDK 1.4.2_09 on a dual core machine. Maybe the fact that it is dual core leads to different timing than single core?
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