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From "Andi Abes" <aa...@progress.com>
Subject RE: Lock exceptions
Date Thu, 19 Feb 2009 20:46:04 GMT
Based on Alex's advice, I've replaced the derby DB, and made sure to
specify  (from ODE-507)
openjpa.jdbc.TransactionIsolation= read-committed

But I'm still not quite out of the woods:
FATAL - GeronimoLog.fatal(116) | Engine requested response while the
message exchange hqejbhcnphr423h3vathv3 was in the state COMPLETED_OK
ERROR - GeronimoLog.error(104) | The message exchange seems to be in an
unconsistent state, you're probably missing a reply on a
request/response interaction.
INFO - GeronimoLog.info(79) | ActivityRecovery: Registering activity 43,
failure reason: org.apache.ode.bpel.iapi.BpelEngineException: Engine
requested response
 while the message exchange hqejbhcnphr423h3vathv3 was in the state
COMPLETED_OK on channel 75


This does not happen if there's just 1 branch in the parallel for-each
loop, but wholly reproducible when the count is 2 or more.

Any advice?




From: Andi Abes 
Sent: Wednesday, February 18, 2009 6:47 PM
To: 'user@ode.apache.org'
Subject: Lock exceptions

Setting - ODE 1.2, Tomcat, Derby JPA (out of box config).

I'm getting the following in the log...Any pointers?

The BPEL process uses a for-each (parallel = yes) loop to invoke a few
instances in parallel (5 in this case) and correlate responses which are
performed using 1-way invocations into the BPEL engine.
The exceptions start showing up shortly after the last response was sent
back from the called services.


WARN - GeronimoLog.warn(96) | connectionErrorOccurred called with null
java.sql.SQLException: A lock could not be obtained due to a deadlock,
cycle of locks and waiters is:
Lock : ROW, ODE_JOB, (1,7)
  Waiting XID : {522, X} , SA, delete from ODE_JOB where jobid = ? and
nodeid = ?
  Granted XID : {512, X} 
Lock : ROW, ODE_JOB, (1,21)
  Waiting XID : {512, X} , SA, delete from ODE_JOB where jobid = ? and
nodeid = ?
  Granted XID : {522, X} 
. The selected victim is XID : 522.
            at
org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown
Source)
            at
org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unknown Source)
            at
org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Un
known Source)
            at
org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unkno
wn Source)
            at
org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown
Source)
            at
org.apache.derby.impl.jdbc.ConnectionChild.handleException(Unknown
Source)
            at
org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unknown
Source)
            at
org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeStatement(Unkno
wn Source)
            at
org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeUpdate(Unknown
Source)
            at
org.tranql.connector.jdbc.PreparedStatementHandle.executeUpdate(Prepared
StatementHandle.java:103)
            at
org.apache.ode.scheduler.simple.JdbcDelegate.deleteJob(JdbcDelegate.java
:92)
            at
org.apache.ode.scheduler.simple.SimpleScheduler$4$1.call(SimpleScheduler
.java:339)
            at
org.apache.ode.scheduler.simple.SimpleScheduler$4$1.call(SimpleScheduler
.java:336)
            at
org.apache.ode.scheduler.simple.SimpleScheduler.execTransaction(SimpleSc
heduler.java:174)
            at
org.apache.ode.scheduler.simple.SimpleScheduler$4.call(SimpleScheduler.j
ava:335)
            at
org.apache.ode.scheduler.simple.SimpleScheduler$4.call(SimpleScheduler.j
ava:332)
            at
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:269)
            at java.util.concurrent.FutureTask.run(FutureTask.java:123)
            at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecuto
r.java:650)
            at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.ja
va:675)
            at java.lang.Thread.run(Thread.java:595)
Caused by: ERROR 40001: A lock could not be obtained due to a deadlock,
cycle of locks and waiters is:
Lock : ROW, ODE_JOB, (1,7)
  Waiting XID : {522, X} , SA, delete from ODE_JOB where jobid = ? and
nodeid = ?
  Granted XID : {512, X} 
Lock : ROW, ODE_JOB, (1,21)
  Waiting XID : {512, X} , SA, delete from ODE_JOB where jobid = ? and
nodeid = ?
  Granted XID : {522, X} 
. The selected victim is XID : 522.
            at
org.apache.derby.iapi.error.StandardException.newException(Unknown
Source)
            at
org.apache.derby.impl.services.locks.Deadlock.buildException(Unknown
Source)
            at
org.apache.derby.impl.services.locks.ConcurrentLockSet.lockObject(Unknow
n Source)
            at
org.apache.derby.impl.services.locks.AbstractPool.lockObject(Unknown
Source)
            at
org.apache.derby.impl.services.locks.ConcurrentPool.lockObject(Unknown
Source)
            at
org.apache.derby.impl.store.raw.xact.RowLocking3.lockRecordForWrite(Unkn
own Source)
            at
org.apache.derby.impl.store.access.heap.HeapController.lockRow(Unknown
Source)
            at
org.apache.derby.impl.store.access.heap.HeapController.lockRow(Unknown
Source)
            at
org.apache.derby.impl.store.access.btree.index.B2IRowLocking3.lockRowOnP
age(Unknown Source)
            at
org.apache.derby.impl.store.access.btree.index.B2IRowLocking3._lockScanR
ow(Unknown Source)
            at
org.apache.derby.impl.store.access.btree.index.B2IRowLockingRR.lockScanR
ow(Unknown Source)
            at
org.apache.derby.impl.store.access.btree.BTreeForwardScan.fetchRows(Unkn
own Source)
            at
org.apache.derby.impl.store.access.btree.BTreeScan.fetchNext(Unknown
Source)
            at
org.apache.derby.impl.sql.execute.TableScanResultSet.getNextRowCore(Unkn
own Source)
            at
org.apache.derby.impl.sql.execute.IndexRowToBaseRowResultSet.getNextRowC
ore(Unknown Source)
            at
org.apache.derby.impl.sql.execute.ProjectRestrictResultSet.getNextRowCor
e(Unknown Source)
            at
org.apache.derby.impl.sql.execute.ProjectRestrictResultSet.getNextRowCor
e(Unknown Source)
            at
org.apache.derby.impl.sql.execute.DMLWriteResultSet.getNextRowCore(Unkno
wn Source)
            at
org.apache.derby.impl.sql.execute.DeleteResultSet.setup(Unknown Source)
            at
org.apache.derby.impl.sql.execute.DeleteResultSet.open(Unknown Source)
            at
org.apache.derby.impl.sql.GenericPreparedStatement.execute(Unknown
Source)
            ... 15 more
ERROR - GeronimoLog.error(108) | Unexpected exception rolling back
org.apache.geronimo.connector.outbound.LocalXAResource@109dafc;
continuing with rollback
javax.transaction.xa.XAException
            at
org.apache.geronimo.connector.outbound.LocalXAResource.rollback(LocalXAR
esource.java:88)
            at
org.apache.geronimo.transaction.manager.TransactionImpl.rollbackResource
s(TransactionImpl.java:581)
            at
org.apache.geronimo.transaction.manager.TransactionImpl.rollback(Transac
tionImpl.java:475)
            at
org.apache.geronimo.transaction.manager.TransactionManagerImpl.rollback(
TransactionManagerImpl.java:250)
            at
org.apache.ode.scheduler.simple.SimpleScheduler.execTransaction(SimpleSc
heduler.java:183)
            at
org.apache.ode.scheduler.simple.SimpleScheduler$4.call(SimpleScheduler.j
ava:335)
            at
org.apache.ode.scheduler.simple.SimpleScheduler$4.call(SimpleScheduler.j
ava:332)
            at
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:269)
            at java.util.concurrent.FutureTask.run(FutureTask.java:123)
            at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecuto
r.java:650)
            at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.ja
va:675)
            at java.lang.Thread.run(Thread.java:595)
Caused by: Unable to rollback
            at
org.tranql.connector.jdbc.ManagedJDBCConnection.localTransactionRollback
(ManagedJDBCConnection.java:113)
            at
org.tranql.connector.AbstractManagedConnection$LocalTransactionImpl.roll
back(AbstractManagedConnection.java:196)
            at
org.apache.geronimo.connector.outbound.LocalXAResource.rollback(LocalXAR
esource.java:86)
            ... 11 more
Caused by: java.sql.SQLException: No current connection.
            at
org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown
Source)
            at
org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Unknown Source)
            at
org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Unknown Source)
            at
org.apache.derby.impl.jdbc.Util.noCurrentConnection(Unknown Source)
            at
org.apache.derby.impl.jdbc.EmbedConnection.checkIfClosed(Unknown Source)
            at
org.apache.derby.impl.jdbc.EmbedConnection.setupContextStack(Unknown
Source)
            at
org.apache.derby.impl.jdbc.EmbedConnection.rollback(Unknown Source)
            at
org.tranql.connector.jdbc.ManagedJDBCConnection.localTransactionRollback
(ManagedJDBCConnection.java:111)
            ... 13 more
ERROR - GeronimoLog.error(108) | Error while executing transaction
javax.transaction.SystemException
            at
org.apache.geronimo.transaction.manager.TransactionImpl.rollbackResource
s(TransactionImpl.java:585)
            at
org.apache.geronimo.transaction.manager.TransactionImpl.rollback(Transac
tionImpl.java:475)
            at
org.apache.geronimo.transaction.manager.TransactionManagerImpl.rollback(
TransactionManagerImpl.java:250)
            at
org.apache.ode.scheduler.simple.SimpleScheduler.execTransaction(SimpleSc
heduler.java:183)
            at
org.apache.ode.scheduler.simple.SimpleScheduler$4.call(SimpleScheduler.j
ava:335)
            at
org.apache.ode.scheduler.simple.SimpleScheduler$4.call(SimpleScheduler.j
ava:332)
            at
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:269)
            at java.util.concurrent.FutureTask.run(FutureTask.java:123)
            at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecuto
r.java:650)
            at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.ja
va:675)
            at java.lang.Thread.run(Thread.java:595)



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