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From "Craig Russell (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JDO-72) Test api.persistencemanager.OptimisticFailure hangs
Date Wed, 28 Dec 2005 06:19:33 GMT
    [ http://issues.apache.org/jira/browse/JDO-72?page=comments#action_12361304 ] 

Craig Russell commented on JDO-72:
----------------------------------

svn commit -m "JDO-72 added VersionedPCPoint with version column and version-number strategy;
changed OptimisticFailure to use versioned class"
Sending        tck20/project.properties
Sending        tck20/test/java/org/apache/jdo/tck/api/persistencemanager/OptimisticFailure.java
Adding         tck20/test/java/org/apache/jdo/tck/pc/mylib/VersionedPCPoint.java
Sending        tck20/test/jdo/applicationidentity/org/apache/jdo/tck/pc/mylib/package.jdo
Sending        tck20/test/jdo/datastoreidentity/org/apache/jdo/tck/pc/mylib/package.jdo
Sending        tck20/test/orm/applicationidentity/org/apache/jdo/tck/pc/mylib/package-derby.orm
Sending        tck20/test/orm/datastoreidentity/org/apache/jdo/tck/pc/mylib/package-derby.orm
Sending        tck20/test/sql/derby/applicationidentity/schema.sql
Sending        tck20/test/sql/derby/datastoreidentity/schema.sql
Transmitting file data .........
Committed revision 359415.

This change adds VersionedPCPoint with version columns and modifies the OptimisticFailure
test to use it. 

The test now encounters an optimistic commit failure, but incorrectly reports the failed instances.
Instead of an array with the failed instance exceptions in it, there are no nested exceptions.

"Nested exceptions[] wrong size: expected 3, got 0" for both application and datastore identity.




> Test api.persistencemanager.OptimisticFailure hangs
> ---------------------------------------------------
>
>          Key: JDO-72
>          URL: http://issues.apache.org/jira/browse/JDO-72
>      Project: JDO
>         Type: Bug
>   Components: tck20
>  Environment: JPOX, Derby
>     Reporter: Craig Russell
>     Assignee: Erik Bengtson

>
> This test is designed to create conflicts in the database from two different JDO transactions.
The changes in the cache must not be visible in the datastore or timeouts will occur. The
exception here occurs when the second optimistic JDO transaction attempts to read a row that
has been changed in the cache by the first optimistic JDO transaction.
>     private void runTestOptimistic(PersistenceManager pm1, 
>                                    PersistenceManager pm2, 
>                                    PersistenceManager pm3) {
>         if (!isOptimisticSupported()) {
>            if (debug)
>                logger.debug("OptimisticFailure tests not run; Optimistic not supported");
>            return;
>         }
>         Transaction tx1 = pm1.currentTransaction();
>         Transaction tx2 = pm2.currentTransaction();
>         Transaction tx3 = pm3.currentTransaction();
>         try {
>            tx1.setOptimistic(true);
>            tx2.setOptimistic(true);
>            
>            // create four instances to test
>            tx1.begin();
>            pm1.makePersistent(p1);
>            pm1.makePersistent(p2);
>            pm1.makePersistent(p3);
>            pm1.makePersistent(p4);
>            pm1.makePersistent(p5);
>            p1oid = pm1.getObjectId(p1);
>            p2oid = pm1.getObjectId(p2);
>            p3oid = pm1.getObjectId(p3);
>            p4oid = pm1.getObjectId(p4);
>            p5oid = pm1.getObjectId(p5);
>            tx1.commit();
>            
>            // update/delete the instances in tx1
>            tx1.begin();
>            PCPoint p1tx1 = (PCPoint)pm1.getObjectById(p1oid, true);
>            PCPoint p2tx1 = (PCPoint)pm1.getObjectById(p2oid, true);
>            PCPoint p3tx1 = (PCPoint)pm1.getObjectById(p3oid, true);
>            PCPoint p4tx1 = (PCPoint)pm1.getObjectById(p4oid, true);
>            p1tx1.setX(101);
>            p2tx1.setX(201);
>            pm1.deletePersistent(p3tx1);
>            pm1.deletePersistent(p4tx1);
>            
>            // update/delete the instances in tx2
>            tx2.begin();
> ***      PCPoint p1tx2 = (PCPoint)pm2.getObjectById(p1oid, true); *** this is where the
test hangs ***
>            PCPoint p2tx2 = (PCPoint)pm2.getObjectById(p2oid, true);
>            PCPoint p3tx2 = (PCPoint)pm2.getObjectById(p3oid, true);
>            PCPoint p4tx2 = (PCPoint)pm2.getObjectById(p4oid, true);
>            PCPoint p5tx2 = (PCPoint)pm2.getObjectById(p5oid, true);
>            p1tx2.setX(102);
> //           pm2.deletePersistent(p2tx2); // this should fail but succeeds due to an
RI bug
>            p3tx2.setX(202);
>            pm2.deletePersistent(p4tx2);
>            p5tx2.setX(502); // this change should not be committed
>            Set expectedFailedObjects = new HashSet();
>            expectedFailedObjects.add(p1tx2);
> //           expectedFailedObjects.add(p2tx2);
>            expectedFailedObjects.add(p3tx2);
>            expectedFailedObjects.add(p4tx2);
>            
>            // commit tx1 (should succeed)
>            tx1.commit();
>            tx1 = null;
>            
>            // commit tx2 (should fail)
>            try {
>                tx2.commit();
>                fail(ASSERTION_FAILED, "concurrent commit not detected");
>            } 
>            catch (JDOOptimisticVerificationException ex) {
>                // verify the correct information in the exception
> RUN OptimisticFailure.test[INFO] tck - Exception during setUp or runtest:  <javax.jdo.JDODataStoreException:
Fetch request failed: SELECT PCPOINT.X,PCPOINT.Y,PCPOINT.ID FROM PCPOINT WHERE (PCPOINT.ID
= ?)
>     [java] NestedThrowables:
>     [java] SQL Exception: A lock could not be obtained within the time requested>javax.jdo.JDODataStoreException:
Fetch request failed: SELECT PCPOINT.X,PCPOINT.Y,PCPOINT.ID FROM PCPOINT WHERE (PCPOINT.ID
= ?)
>     [java]      at org.jpox.store.rdbms.request.FetchRequest.execute(FetchRequest.java:195)
>     [java]      at org.jpox.store.rdbms.table.ClassTable.fetch(ClassTable.java:1739)
>     [java]      at org.jpox.store.StoreManager.fetch(StoreManager.java:665)
>     [java]      at org.jpox.state.StateManagerImpl.loadDFGFields(StateManagerImpl.java:1573)
>     [java]      at org.jpox.state.StateManagerImpl.loadDefaultFetchGroup(StateManagerImpl.java:1666)
>     [java]      at org.jpox.state.StateManagerImpl.validate(StateManagerImpl.java:3456)
>     [java]      at org.jpox.AbstractPersistenceManager.getObjectById(AbstractPersistenceManager.java:2204)
>     [java]      at org.jpox.AbstractPersistenceManager.getObjectById(AbstractPersistenceManager.java:2107)
>     [java]      at org.apache.jdo.tck.api.persistencemanager.OptimisticFailure.runTestOptimistic(OptimisticFailure.java:139)
>     [java]      at org.apache.jdo.tck.api.persistencemanager.OptimisticFailure.test(OptimisticFailure.java:83)
>     [java]      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>     [java]      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>     [java]      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>     [java]      at java.lang.reflect.Method.invoke(Method.java:324)
>     [java]      at junit.framework.TestCase.runTest(TestCase.java:154)
>     [java]      at org.apache.jdo.tck.JDO_Test.runBare(JDO_Test.java:181)
>     [java]      at junit.framework.TestResult$1.protect(TestResult.java:106)
>     [java]      at junit.framework.TestResult.runProtected(TestResult.java:124)
>     [java]      at junit.framework.TestResult.run(TestResult.java:109)
>     [java]      at junit.framework.TestCase.run(TestCase.java:118)
>     [java]      at junit.framework.TestSuite.runTest(TestSuite.java:208)
>     [java]      at junit.framework.TestSuite.run(TestSuite.java:203)
>     [java]      at junit.framework.TestSuite.runTest(TestSuite.java:208)
>     [java]      at junit.framework.TestSuite.run(TestSuite.java:203)
>     [java]      at junit.textui.TestRunner.doRun(TestRunner.java:116)
>     [java]      at junit.textui.TestRunner.doRun(TestRunner.java:109)
>     [java]      at org.apache.jdo.tck.util.BatchTestRunner.start(BatchTestRunner.java:128)
>     [java]      at org.apache.jdo.tck.util.BatchTestRunner.main(BatchTestRunner.java:106)
>     [java] NestedThrowablesStackTrace:
>     [java] ERROR 40XL1: A lock could not be obtained within the time requested
>     [java]      at org.apache.derby.iapi.error.StandardException.newException(StandardException.java)
>     [java]      at org.apache.derby.impl.services.locks.LockSet.lockObject(LockSet.java)
>     [java]      at org.apache.derby.impl.services.locks.SinglePool.lockAnObject(SinglePool.java)
>     [java]      at org.apache.derby.impl.services.locks.SinglePool.lockObject(SinglePool.java)
>     [java]      at org.apache.derby.impl.store.raw.xact.RowLocking2.lockRecordForRead(RowLocking2.java)
>     [java]      at org.apache.derby.impl.store.access.heap.HeapController.lockRow(HeapController.java)
>     [java]      at org.apache.derby.impl.store.access.heap.HeapController.lockRow(HeapController.java)
>     [java]      at org.apache.derby.impl.store.access.btree.index.B2IRowLocking3.lockRowOnPage(B2IRowLocking3.java)
>     [java]      at org.apache.derby.impl.store.access.btree.index.B2IRowLocking3._lockScanRow(B2IRowLocking3.java)
>     [java]      at org.apache.derby.impl.store.access.btree.index.B2IRowLockingRR.lockScanRow(B2IRowLockingRR.java)
>     [java]      at org.apache.derby.impl.store.access.btree.BTreeForwardScan.fetchRows(BTreeForwardScan.java)
>     [java]      at org.apache.derby.impl.store.access.btree.BTreeScan.fetchNext(BTreeScan.java)
>     [java]      at org.apache.derby.impl.sql.execute.TableScanResultSet.getNextRowCore(TableScanResultSet.java)
>     [java]      at org.apache.derby.impl.sql.execute.IndexRowToBaseRowResultSet.getNextRowCore(IndexRowToBaseRowResultSet.java)
>     [java]      at org.apache.derby.impl.sql.execute.ProjectRestrictResultSet.getNextRowCore(ProjectRestrictResultSet.java)
>     [java]      at org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl.getNextRow(BasicNoPutResultSetImpl.java)
>     [java]      at org.apache.derby.impl.jdbc.EmbedResultSet.movePosition(EmbedResultSet.java)
>     [java]      at org.apache.derby.impl.jdbc.EmbedResultSet.next(EmbedResultSet.java)
>     [java]      at org.jpox.store.rdbms.request.FetchRequest.execute(FetchRequest.java:157)
>     [java]      at org.jpox.store.rdbms.table.ClassTable.fetch(ClassTable.java:1739)
>     [java]      at org.jpox.store.StoreManager.fetch(StoreManager.java:665)
>     [java]      at org.jpox.state.StateManagerImpl.loadDFGFields(StateManagerImpl.java:1573)
>     [java]      at org.jpox.state.StateManagerImpl.loadDefaultFetchGroup(StateManagerImpl.java:1666)
>     [java]      at org.jpox.state.StateManagerImpl.validate(StateManagerImpl.java:3456)
>     [java]      at org.jpox.AbstractPersistenceManager.getObjectById(AbstractPersistenceManager.java:2204)
>     [java]      at org.jpox.AbstractPersistenceManager.getObjectById(AbstractPersistenceManager.java:2107)
>     [java]      at org.apache.jdo.tck.api.persistencemanager.OptimisticFailure.runTestOptimistic(OptimisticFailure.java:139)
>     [java]      at org.apache.jdo.tck.api.persistencemanager.OptimisticFailure.test(OptimisticFailure.java:83)
>     [java]      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>     [java]      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>     [java]      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>     [java]      at java.lang.reflect.Method.invoke(Method.java:324)
>     [java]      at junit.framework.TestCase.runTest(TestCase.java:154)
>     [java]      at org.apache.jdo.tck.JDO_Test.runBare(JDO_Test.java:181)
>     [java]      at junit.framework.TestResult$1.protect(TestResult.java:106)
>     [java]      at junit.framework.TestResult.runProtected(TestResult.java:124)
>     [java]      at junit.framework.TestResult.run(TestResult.java:109)
>     [java]      at junit.framework.TestCase.run(TestCase.java:118)
>     [java]      at junit.framework.TestSuite.runTest(TestSuite.java:208)
>     [java]      at junit.framework.TestSuite.run(TestSuite.java:203)
>     [java]      at junit.framework.TestSuite.runTest(TestSuite.java:208)
>     [java]      at junit.framework.TestSuite.run(TestSuite.java:203)
>     [java]      at junit.textui.TestRunner.doRun(TestRunner.java:116)
>     [java]      at junit.textui.TestRunner.doRun(TestRunner.java:109)
>     [java]      at org.apache.jdo.tck.util.BatchTestRunner.start(BatchTestRunner.java:128)
>     [java]      at org.apache.jdo.tck.util.BatchTestRunner.main(BatchTestRunner.java:106)

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