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From "Catalina Wei (JIRA)" <j...@apache.org>
Subject [jira] Commented: (OPENJPA-1752) TestPessimisticLocks JUNIT test produced inconsistent behavior with various backends
Date Tue, 03 Aug 2010 18:05:19 GMT

    [ https://issues.apache.org/jira/browse/OPENJPA-1752?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12894964#action_12894964
] 

Catalina Wei commented on OPENJPA-1752:
---------------------------------------

Test results for Oracle backend was inaccurate in previous comments, test 3.1 actually passed
with no exceptions.
Oracle server is hanging only in test 3.2. This happens to both Oracle 10g 10.2.0.1.0 and
Oracle 11g 11.1.0.6.0.

Update  test results for Oracle 10g and 11g:

Tests Derby_________________ DB2V9.7______________ Oracle10gXE & Oracle 11g ______MySQL
5.1.49/JDBC 5.1.7
====================================================================================================================================
1.1__ PessimisticLockException_ LockTimeoutException____ LockTimeoutException_________ LockTimeoutException
1.2__ No exception____________ No exception___________ No exception_________________ No exception
2.1__ PessimisticLockException_ LockTimeoutException____ LockTimeoutException_________ LockTimeoutException
2.2__ No exception____________ LockTimeoutException____ No exception________________ LockTimeoutException
3.1__ No exception____________ QueryTimeoutException___ No exception--_______________ QueryTimeoutException
3.2__ PessimisticLockException_ QueryTimeoutException____Server  hang_________________ QueryTimeoutException
4.1__ No exception___________ QueryTimeoutException____ No exception_________________ QueryTimeoutException
4.2__ PessimisticLockException_ QueryTimeoutException____ process hang________________ QueryTimeoutException


> TestPessimisticLocks JUNIT test produced inconsistent behavior with various backends
> ------------------------------------------------------------------------------------
>
>                 Key: OPENJPA-1752
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1752
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: jpa
>    Affects Versions: 2.0.1, 2.1.0
>            Reporter: Catalina Wei
>
> TestPessimisticLocks JUNIT tests pass all assertions for Derby backend, but failures
are seen on DB2, MySQL, Oracle.
> It is likely that failures may also occur on other backends.
> There could be some problem in OpenJPA code in handling pessimistic lock requests.
> There is also inconsistency in reporting exceptions - lock timout or query timeout should
be non-fatal; but with Derby the PessimisticLockException is reported  which is considered
fatal. It is also possible that the test scenarios are problematic.
> TestPessisimiticLocks has 5 test cases, the last test case worked for all backend. Problem
test cases are listed as below:
> 1.  testFindAfterQueryWithPessimisticLocks()
> 2.  testFindAfterQueryOrderByWithPessimisticLocks()
> 3.  testQueryAfterFindWithPessimisticLocks()
> 4.  testQueryOrderByAfterFindWithPessimisticLocks()
> The failure symptoms are summarized below -   Each test contains 2 variations.
> The dot notation, for example, 1.1 is the first scenario in testFindAfterQueryWithPessimisticLocks()

> Each test scenario is either expecting an exception or No exception; if no exception
is reported, the SELECT sql got results from database.
>  
> Tests       Derby                                        DB2V9.7                    
            Oracle10gXE 10.2.0.1.0            MySQL 5.1.39/JDBC 5.1.7
> ====================================================================================================================================
> 1.1         PessimisticLockException      LockTimeoutException        LockTimeoutException
             LockTimeoutException
> 1.2         No exception                              No exception                  
       No exception                                No exception
> 2.1         PessimisticLockException      LockTimeoutException        LockTimeoutException
             LockTimeoutException
> 2.2         No  exception                             LockTimeoutException        No
exception                                LockTimeoutException
> 3.1         No  exception                             QueryTimeoutException       process
hang                            PersistenceException: Server shutdown [code=1053, state=08S01]
 
> 3.2         PessimisticLockException      QueryTimeoutException       process hang  
                         PersistenceException: Server shutdown [code=1053, state=08S01]
> 4.1         No  exception                             QueryTimeoutException       No
exception                             QueryTimeoutException
> 4.2         PessimisticLockException      QueryTimeoutException       process hang  
                        QueryTimeoutException
> NOTE: for Oracle, many test scenarios caused process to hang (test 3.1, 3.2, and 4.2)
- ie. test never run to completion
>       for MySQL, Server shutdown (test 3.1 and 3.2)
>       here is the  stack trace:
> org.apache.openjpa.persistence.PersistenceException:Server shutdown in progress {prepstmnt
33525219 SELECT t1.id, t1.name FROM Employee t0 LEFT OUTER JOIN Department t1 ON t0.FK_DEPT
= t1.id WHERE (t0.id < ?) LIMIT ?, ? FOR UPDATE [params=?, ?, ?]} [code=1053, state=08S01]
> <openjpa-2.1.0-SNAPSHOT-rexported fatal general error> org.apache.openjpa.persistence.PersistenceException:
Server shutdown in progress {prepstmnt 33525219 SELECT t1.id, t1.name FROM Employee t0 LEFT
OUTER JOIN Department t1 ON t0.FK_DEPT = t1.id WHERE (t0.id < ?) LIMIT ?, ? FOR UPDATE
[params=?, ?, ?]} [code=1053, state=08S01]
> FailedObject: select e.department from Employee e where e.id < 10 [java.lang.String]
> 	at org.apache.openjpa.jdbc.sql.DBDictionary.narrow(DBDictionary.java:4855)
> 	at org.apache.openjpa.jdbc.sql.DBDictionary.newStoreException(DBDictionary.java:4815)
> 	at org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:137)
> 	at org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:118)
> 	at org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:70)
> 	at org.apache.openjpa.jdbc.kernel.SelectResultObjectProvider.handleCheckedException(SelectResultObjectProvider.java:155)
> 	at org.apache.openjpa.kernel.QueryImpl$PackingResultObjectProvider.handleCheckedException(QueryImpl.java:2109)
> 	at org.apache.openjpa.lib.rop.EagerResultList.<init>(EagerResultList.java:40)
> 	at org.apache.openjpa.kernel.QueryImpl.toResult(QueryImpl.java:1246)
> 	at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:1005)
> 	at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:861)
> 	at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:792)
> 	at org.apache.openjpa.kernel.DelegatingQuery.execute(DelegatingQuery.java:542)
> 	at org.apache.openjpa.persistence.QueryImpl.execute(QueryImpl.java:288)
> 	at org.apache.openjpa.persistence.QueryImpl.getResultList(QueryImpl.java:302)
> 	at org.apache.openjpa.persistence.lockmgr.TestPessimisticLocks.testQueryAfterFindWithPessimisticLocks(TestPessimisticLocks.java:271)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> 	at java.lang.reflect.Method.invoke(Unknown Source)
> 	at junit.framework.TestCase.runTest(TestCase.java:154)
> 	at org.apache.openjpa.persistence.test.AbstractPersistenceTestCase.runTest(AbstractPersistenceTestCase.java:516)
> 	at junit.framework.TestCase.runBare(TestCase.java:127)
> 	at org.apache.openjpa.persistence.test.AbstractPersistenceTestCase.runBare(AbstractPersistenceTestCase.java:503)
> 	at org.apache.openjpa.persistence.test.AbstractPersistenceTestCase.runBare(AbstractPersistenceTestCase.java:479)
> 	at junit.framework.TestResult$1.protect(TestResult.java:106)
> 	at junit.framework.TestResult.runProtected(TestResult.java:124)
> 	at junit.framework.TestResult.run(TestResult.java:109)
> 	at junit.framework.TestCase.run(TestCase.java:118)
> 	at org.apache.openjpa.persistence.test.AbstractPersistenceTestCase.run(AbstractPersistenceTestCase.java:179)
> 	at junit.framework.TestSuite.runTest(TestSuite.java:208)
> 	at junit.framework.TestSuite.run(TestSuite.java:203)
> 	at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:128)
> 	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
> Caused by: org.apache.openjpa.lib.jdbc.ReportingSQLException: Server shutdown in progress
{prepstmnt 33525219 SELECT t1.id, t1.name FROM Employee t0 LEFT OUTER JOIN Department t1 ON
t0.FK_DEPT = t1.id WHERE (t0.id < ?) LIMIT ?, ? FOR UPDATE [params=?, ?, ?]} [code=1053,
state=08S01]
> 	at org.apache.openjpa.lib.jdbc.LoggingConnectionDecorator.wrap(LoggingConnectionDecorator.java:274)
> 	at org.apache.openjpa.lib.jdbc.LoggingConnectionDecorator.wrap(LoggingConnectionDecorator.java:258)
> 	at org.apache.openjpa.lib.jdbc.LoggingConnectionDecorator.access$3(LoggingConnectionDecorator.java:257)
> 	at org.apache.openjpa.lib.jdbc.LoggingConnectionDecorator$LoggingConnection$LoggingPreparedStatement.executeQuery(LoggingConnectionDecorator.java:1176)
> 	at org.apache.openjpa.lib.jdbc.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:278)
> 	at org.apache.openjpa.jdbc.kernel.JDBCStoreManager$CancelPreparedStatement.executeQuery(JDBCStoreManager.java:1773)
> 	at org.apache.openjpa.lib.jdbc.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:268)
> 	at org.apache.openjpa.jdbc.sql.SelectImpl.executeQuery(SelectImpl.java:499)
> 	at org.apache.openjpa.jdbc.sql.SelectImpl.execute(SelectImpl.java:424)
> 	at org.apache.openjpa.jdbc.sql.SelectImpl.execute(SelectImpl.java:382)
> 	at org.apache.openjpa.jdbc.kernel.SelectResultObjectProvider.open(SelectResultObjectProvider.java:94)
> 	at org.apache.openjpa.kernel.QueryImpl$PackingResultObjectProvider.open(QueryImpl.java:2068)
> 	at org.apache.openjpa.lib.rop.EagerResultList.<init>(EagerResultList.java:34)
> 	... 30 more
> NestedThrowables:
> com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Server shutdown
in progress
> 	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> 	at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
> 	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
> 	at java.lang.reflect.Constructor.newInstance(Unknown Source)
> 	at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
> 	at com.mysql.jdbc.Util.getInstance(Util.java:381)
> 	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984)
> 	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
> 	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3515)
> 	at com.mysql.jdbc.MysqlIO.nextRowFast(MysqlIO.java:1545)
> 	at com.mysql.jdbc.MysqlIO.nextRow(MysqlIO.java:1401)
> 	at com.mysql.jdbc.MysqlIO.readSingleRowSet(MysqlIO.java:2829)
> 	at com.mysql.jdbc.MysqlIO.getResultSet(MysqlIO.java:468)
> 	at com.mysql.jdbc.MysqlIO.readResultsForQueryOrUpdate(MysqlIO.java:2534)
> 	at com.mysql.jdbc.MysqlIO.readAllResults(MysqlIO.java:1749)
> 	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2159)
> 	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2554)
> 	at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1761)
> 	at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1912)
> 	at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:93)
> 	at org.apache.openjpa.lib.jdbc.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:280)
> 	at org.apache.openjpa.lib.jdbc.JDBCEventConnectionDecorator$EventPreparedStatement.executeQuery(JDBCEventConnectionDecorator.java:270)
> 	at org.apache.openjpa.lib.jdbc.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:278)
> 	at org.apache.openjpa.lib.jdbc.LoggingConnectionDecorator$LoggingConnection$LoggingPreparedStatement.executeQuery(LoggingConnectionDecorator.java:1174)
> 	at org.apache.openjpa.lib.jdbc.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:278)
> 	at org.apache.openjpa.jdbc.kernel.JDBCStoreManager$CancelPreparedStatement.executeQuery(JDBCStoreManager.java:1773)
> 	at org.apache.openjpa.lib.jdbc.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:268)
> 	at org.apache.openjpa.jdbc.sql.SelectImpl.executeQuery(SelectImpl.java:499)
> 	at org.apache.openjpa.jdbc.sql.SelectImpl.execute(SelectImpl.java:424)
> 	at org.apache.openjpa.jdbc.sql.SelectImpl.execute(SelectImpl.java:382)
> 	at org.apache.openjpa.jdbc.kernel.SelectResultObjectProvider.open(SelectResultObjectProvider.java:94)
> 	at org.apache.openjpa.kernel.QueryImpl$PackingResultObjectProvider.open(QueryImpl.java:2068)
> 	at org.apache.openjpa.lib.rop.EagerResultList.<init>(EagerResultList.java:34)
> 	at org.apache.openjpa.kernel.QueryImpl.toResult(QueryImpl.java:1246)
> 	at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:1005)
> 	at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:861)
> 	at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:792)
> 	at org.apache.openjpa.kernel.DelegatingQuery.execute(DelegatingQuery.java:542)
> 	at org.apache.openjpa.persistence.QueryImpl.execute(QueryImpl.java:288)
> 	at org.apache.openjpa.persistence.QueryImpl.getResultList(QueryImpl.java:302)
> 	at org.apache.openjpa.persistence.lockmgr.TestPessimisticLocks.testQueryAfterFindWithPessimisticLocks(TestPessimisticLocks.java:271)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> 	at java.lang.reflect.Method.invoke(Unknown Source)
> 	at junit.framework.TestCase.runTest(TestCase.java:154)
> 	at org.apache.openjpa.persistence.test.AbstractPersistenceTestCase.runTest(AbstractPersistenceTestCase.java:516)
> 	at junit.framework.TestCase.runBare(TestCase.java:127)
> 	at org.apache.openjpa.persistence.test.AbstractPersistenceTestCase.runBare(AbstractPersistenceTestCase.java:503)
> 	at org.apache.openjpa.persistence.test.AbstractPersistenceTestCase.runBare(AbstractPersistenceTestCase.java:479)
> 	at junit.framework.TestResult$1.protect(TestResult.java:106)
> 	at junit.framework.TestResult.runProtected(TestResult.java:124)
> 	at junit.framework.TestResult.run(TestResult.java:109)
> 	at junit.framework.TestCase.run(TestCase.java:118)
> 	at org.apache.openjpa.persistence.test.AbstractPersistenceTestCase.run(AbstractPersistenceTestCase.java:179)
> 	at junit.framework.TestSuite.runTest(TestSuite.java:208)
> 	at junit.framework.TestSuite.run(TestSuite.java:203)
> 	at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:128)
> 	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)

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