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From "Mamta A. Satoor (JIRA)" <j...@apache.org>
Subject [jira] Created: (DERBY-4273) A lock could not be obtained within the time requested error in testBTreeForwardScan_fetchRows_resumeAfterWait_nonUnique_split
Date Mon, 15 Jun 2009 23:52:07 GMT
A lock could not be obtained within the time requested error in testBTreeForwardScan_fetchRows_resumeAfterWait_nonUnique_split
------------------------------------------------------------------------------------------------------------------------------

                 Key: DERBY-4273
                 URL: https://issues.apache.org/jira/browse/DERBY-4273
             Project: Derby
          Issue Type: Bug
          Components: Regression Test Failure
    Affects Versions: 10.5.1.2
            Reporter: Mamta A. Satoor


I recently merged changes for DERBY-3926 into 10.5.1.2 codeline (revision 784809) and I ran
the junit tests on the merged code. The tests finished with one "A lock could not be obtained
within the time requested". Knut suggested that I open a new jira entry for this issue. Copying
his comment from DERBY-2991 here "Yes, that test was added for DERBY-2991.. It requires some
coordination between two threads, so my first guess would be that there is a timing issue
in the test. Please file a separate JIRA issue for this failure. Thanks. "

Following is the stack track for the failure
There was 1 error: 
1) testBTreeForwardScan_fetchRows_resumeAfterWait_nonUnique_split(org.apache.derbyTesting.functionTests.tests.store.IndexSplitDeadlockTest)java.sql.SQLException:
A lock could not be obtained within the time requested 
        at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(SQLExceptionFactory.java:45)

        at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Util.java:201) 
        at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(TransactionResourceImpl.java:391)

        at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(TransactionResourceImpl.java:346)

        at org.apache.derby.impl.jdbc.EmbedConnection.handleException(EmbedConnection.java:2201)

        at org.apache.derby.impl.jdbc.ConnectionChild.handleException(ConnectionChild.java:81)

        at org.apache.derby.impl.jdbc.EmbedResultSet.closeOnTransactionError(EmbedResultSet.java:4338)

        at org.apache.derby.impl.jdbc.EmbedResultSet.movePosition(EmbedResultSet.java:467)

        at org.apache.derby.impl.jdbc.EmbedResultSet.next(EmbedResultSet.java:371) 
        at org.apache.derbyTesting.functionTests.tests.store.IndexSplitDeadlockTest.testBTreeForwardScan_fetchRows_resumeAfterWait_nonUnique_split(IndexSplitDeadlockTest.java:489)

        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79) 
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

        at org.apache.derbyTesting.junit.BaseTestCase.runBare(BaseTestCase.java:106) 
        at junit.extensions.TestDecorator.basicRun(TestDecorator.java:22) 
        at junit.extensions.TestSetup$1.protect(TestSetup.java:19) 
        at junit.extensions.TestSetup.run(TestSetup.java:23) 
        at org.apache.derbyTesting.junit.BaseTestSetup.run(BaseTestSetup.java:57) 
        at junit.extensions.TestDecorator.basicRun(TestDecorator.java:22) 
        at junit.extensions.TestSetup$1.protect(TestSetup.java:19) 
        at junit.extensions.TestSetup.run(TestSetup.java:23) 
        at org.apache.derbyTesting.junit.BaseTestSetup.run(BaseTestSetup.java:57) 
Caused by: ERROR 40XL1: A lock could not be obtained within the time requested at org.apache.derby.iapi.error.StandardException.newException(StandardException.java:276)

        at org.apache.derby.impl.services.locks.ConcurrentLockSet.lockObject(ConcurrentLockSet.java:602)

        at org.apache.derby.impl.services.locks.ConcurrentLockSet.zeroDurationLockObject(ConcurrentLockSet.java:855)

        at org.apache.derby.impl.services.locks.AbstractPool.zeroDurationlockObject(AbstractPool.java:297)

        at org.apache.derby.impl.store.raw.xact.RowLocking2nohold.lockRecordForRead(RowLocking2nohold.java:89)

        at org.apache.derby.impl.store.access.heap.HeapController.lockRow(HeapController.java:520)

        at org.apache.derby.impl.store.access.heap.HeapController.lockRow(HeapController.java:638)

        at org.apache.derby.impl.store.access.btree.index.B2IRowLocking3.lockRowOnPage(B2IRowLocking3.java:309)

        at org.apache.derby.impl.store.access.btree.index.B2IRowLocking3._lockScanRow(B2IRowLocking3.java:599)

        at org.apache.derby.impl.store.access.btree.index.B2IRowLockingRR.lockScanRow(B2IRowLockingRR.java:105)

        at org.apache.derby.impl.store.access.btree.BTreeForwardScan.fetchRows(BTreeForwardScan.java:305)

        at org.apache.derby.impl.store.access.btree.BTreeScan.fetchNextGroup(BTreeScan.java:1585)

        at org.apache.derby.impl.sql.execute.BulkTableScanResultSet.reloadArray(BulkTableScanResultSet.java:327)

        at org.apache.derby.impl.sql.execute.BulkTableScanResultSet.getNextRowCore(BulkTableScanResultSet.java:282)

        at org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl.getNextRow(BasicNoPutResultSetImpl.java:460)

        at org.apache.derby.impl.jdbc.EmbedResultSet.movePosition(EmbedResultSet.java:427)

        ... 34 more 

FAILURES!!! 
Tests run: 9258, Failures: 0, Errors: 1 

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