[Hibernate-JIRA] Created: (HHH-2131) SYBASE +select for update is showing deadlock because lock is not working properly
by George Thomas (JIRA)
SYBASE +select for update is showing deadlock because lock is not working properly
----------------------------------------------------------------------------------
Key: HHH-2131
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2131
Project: Hibernate3
Type: Bug
Components: core
Versions: 3.1.3
Environment: sybaseASE 12.5.03 in solaris +hibernate3.1.3
Reporter: George Thomas
I am connecting to Sybase database from hibernate.I tried setting locks using while selecting rows
1.session.load(class,id,LOCKMODE.UPGRADE)
2.session.lock(obj,LOCKMODE.UPGRADE)
I am attaching a sample code while updating a field in table fund after selecting it.
{
Fund fund = null;
ClientCredential credential = new ClientCredential("testDatabase", fund);
org.hibernate.Session session = SessionFactoryManager.getSessionFactory(credential).getCurrentSession();
Transaction transaction = session.beginTransaction();
log.info("Run by " + Thread.currentThread().getName());
fund = (Fund) session.get(Fund.class, new Short((short)12), LockMode.UPGRADE);
fund.setLegalEntityOrgId(fund.getLegalEntityOrgId()+1);
transaction.commit();
}
my requirement was that i wanted to do a select for update.I should acquire lock on certain rows and do a matching and if concurrent request comes ,it should wait till transaction is over that is lock is released.
When I went through the hibernate code,the hibernate is making static queries in the beginning while loading session factory.Since we are appending the holdlock during execution,the sybase dialect is not appending.
As a work around I tested with native sql with holdlock but when I test concurrent request using threads its bombing.Its throwing LockAcquisitionException.( Your server command (family id #0, process id #3777) encountered a deadlock situation.).can anyone give a solution to this problem???
org.hibernate.exception.LockAcquisitionException: could not update: [com.citco.aexeo.common.dataaccess.domain.Fund#12]
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:84)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2223)
at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2118)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2375)
at org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:91)
at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:250)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:233)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:140)
at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:297)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:985)
at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:333)
at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:107)
at com.satyam.Testing.doTransaction(Testing.java:103)
at com.satyam.MyRunnable.run(MyRunnable.java:13)
at java.lang.Thread.run(Thread.java:568)
Caused by: com.sybase.jdbc2.jdbc.SybSQLException: Your server command (family id #0, process id #3777) encountered a deadlock situation. Please re-run your command.
at com.sybase.jdbc2.tds.Tds.processEed(Tds.java:2636)
at com.sybase.jdbc2.tds.Tds.nextResult(Tds.java:1996)
at com.sybase.jdbc2.jdbc.ResultGetter.nextResult(ResultGetter.java:69)
at com.sybase.jdbc2.jdbc.SybStatement.nextResult(SybStatement.java:204)
at com.sybase.jdbc2.jdbc.SybStatement.nextResult(SybStatement.java:187)
at com.sybase.jdbc2.jdbc.SybStatement.updateLoop(SybStatement.java:1642)
at com.sybase.jdbc2.jdbc.SybStatement.executeUpdate(SybStatement.java:1625)
at com.sybase.jdbc2.jdbc.SybPreparedStatement.executeUpdate(SybPreparedStatement.java:91)
at org.hibernate.jdbc.NonBatchingBatcher.addToBatch(NonBatchingBatcher.java:23)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2205)
... 14 more
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15 years, 3 months
[Hibernate-JIRA] Created: (HHH-2691) Insert Into Select command outputs incorrect exception
by John Aylward (JIRA)
Insert Into Select command outputs incorrect exception
------------------------------------------------------
Key: HHH-2691
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2691
Project: Hibernate3
Issue Type: Bug
Components: query-hql
Affects Versions: 3.2.4.sp1
Environment: Hibernate 3.2.4.sp1 with Annotations 3.3.0 And Validator 3.0.0
MySQL 5.0.42
Reporter: John Aylward
receive following exception:
org.hibernate.QueryException: number of select types did not match those for insert [INSERT INTO ProviderInvoiceLineItem (amount,billingAccount,circuit,description,invoice,type) SELECT pili.amount,pili.billingAccount,pili.circuit,pili.description,:newInvoice,pili.type) FROM com.cicat.bedrock.billing.model.ProviderInvoiceLineItem pili WHERE pili.invoice = :oldInvoice]
exception should be that token ')' is not excepected near "pili.type"
Should not have gotten as far as it did, should have blown up on parsing the HQL
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15 years, 4 months
[Hibernate-JIRA] Created: (HHH-2374) setFetchMode() ignore incorect path
by Baptiste MATHUS (JIRA)
setFetchMode() ignore incorect path
-----------------------------------
Key: HHH-2374
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2374
Project: Hibernate3
Type: Bug
Versions: 3.2.0.ga
Environment: All DB I guess
Reporter: Baptiste MATHUS
This bug report is in fact a copy of the one that was already present in H2 : http://opensource.atlassian.com/projects/hibernate/browse/HB-763 . It does not seem to have changed in H3.
When calling setFetchMode("path", FetchMode.JOIN) on a criteria, even if the path is not correct, Hibernate does not complain. Its behaviour seems to be to simply ignore this bad path. I guess this should throw an exception. In fact, the bad thing of ignoring bad path is that if the developer was wrong specifying the path (typo, for example), then the join simply won't happen :-/.
I wrote a very simple testcase :
public void testFindClients()
{
Session session = HibernateUtil.currentSession();
session.beginTransaction();
Client c = (Client)session.createCriteria(Client.class).setFetchMode("foo", FetchMode.JOIN)
.setFetchMode("foo.bar", FetchMode.JOIN).uniqueResult();
session.getTransaction().commit();
}
My Client class has some relationships with other classes, but obviously none named "foo". The code above just issue the following select :
select
this_.ID as ID0_0_,
this_.nom as nom0_0_,
this_.prenom as prenom0_0_,
this_.age as age0_0_
from
Client this_
Thanks again for your great work, guys!
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15 years, 4 months
[Hibernate-JIRA] Created: (HHH-2344) Persistent collection queued operation ignored with lazy inverse one-to-many collection.
by Sebastien Robert (JIRA)
Persistent collection queued operation ignored with lazy inverse one-to-many collection.
----------------------------------------------------------------------------------------
Key: HHH-2344
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2344
Project: Hibernate3
Type: Bug
Components: core
Versions: 3.2.1
Environment: Hibernate 3.2.1
Reporter: Sebastien Robert
I load an Object that contains a lazy inverse collection (one-to-many).
Hibernate wrap my collection with a PersistentMap
There is objects in the collection in the database but in my case the PersistentMap is not yet initialized.
I perform a remove operation on the persistentMap with a known key of one of the objects.
The map is not initialized (and the relation is an inverse one-to-many) so the map queue the removeOperation.
I perform a get operation with the same key and the value is still returned.
If we look closer at what happened in the PersistentMap, it's look like this.
//*****
public Object remove(Object key) {
if ( isPutQueueEnabled() ) { // This returned true, the
// map is not yet
// initialized
Object old = readElementByIndex( key ); // This method triggered
// an initialization of the
// map.
// Queued operation are
// processed in the after
// init method
queueOperation( new Remove( key, old ) ); // The remove operation
// is queued.
return old;
}
....
//*******
When i perform the get operation on the map the map is now initialized. The get is processed by the underlying map and the value is returned. The queued operation is completely ignored.
Currently i fixed my code by performing a containsKey before the remove . The containsKey initialize the map and then the remove do not queue the operation. But by looking at all the PersistentCollection it seem that i may have the same problem using put and remove with other persistentCollection.
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15 years, 4 months
[Hibernate-JIRA] Created: (HHH-2068) TransientObjectException : object references an unsaved transient instance ...
by Ales PROCHAZKA (JIRA)
TransientObjectException : object references an unsaved transient instance ...
------------------------------------------------------------------------------
Key: HHH-2068
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2068
Project: Hibernate3
Type: Bug
Components: core
Versions: 3.2.0.cr4
Environment: Windows, Hibernate 3.2.0.cr4, Oracle 9.2.0.1
Reporter: Ales PROCHAZKA
Attachments: XTest.zip
I found this problem:
If I create new object 'o1', which associate another persistent object 'o2' and by calling saveOrUpdate Hibernate throws PropertyValueException,
then when I corresct this property and try call saveOrUpdate in another session (in which 'o2' was not saved or loaded) Hibernate throws TransientObjectException.
Please see attached code :-)
This is a log :
Hibernate: select hibernate_sequence.nextval from dual
Hibernate: insert into T_TEST (A_POKUS, A_POKUS_LONG, CID, PK) values (?, ?, 3, ?)
Hibernate: insert into T_TEST3 (PK) values (?)
Hibernate: select hibernate_sequence.nextval from dual
Hibernate: select hibernate_sequence.nextval from dual
org.hibernate.PropertyValueException: not-null property references a null or transient value: persistent.Test5.pokus
at org.hibernate.engine.Nullability.checkNullability(Nullability.java:72)
at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:284)
at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:180)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:121)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:186)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:175)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:98)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70)
at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:509)
at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:501)
at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:497)
at test.MainTest.test(MainTest.java:71)
at test.MainTest.main(MainTest.java:42)
org.hibernate.TransientObjectException: persistent.Test3
at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:216)
at org.hibernate.type.EntityType.getIdentifier(EntityType.java:108)
at org.hibernate.type.ManyToOneType.isDirty(ManyToOneType.java:221)
at org.hibernate.type.TypeFactory.findDirty(TypeFactory.java:476)
at org.hibernate.persister.entity.AbstractEntityPersister.findDirty(AbstractEntityPersister.java:2900)
at org.hibernate.event.def.DefaultFlushEntityEventListener.dirtyCheck(DefaultFlushEntityEventListener.java:474)
at org.hibernate.event.def.DefaultFlushEntityEventListener.isUpdateNecessary(DefaultFlushEntityEventListener.java:197)
at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:120)
at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:195)
at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:76)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:993)
at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:340)
at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
at test.MainTest.test(MainTest.java:87)
at test.MainTest.main(MainTest.java:42)
Thanx
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15 years, 4 months
[Hibernate-JIRA] Created: (HHH-3006) ConcurrentModificationException in AbstractBatcher results in infinite loop
by Stefan Hauk (JIRA)
ConcurrentModificationException in AbstractBatcher results in infinite loop
---------------------------------------------------------------------------
Key: HHH-3006
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3006
Project: Hibernate3
Issue Type: Bug
Components: core
Affects Versions: 3.2.5, 3.2.4.sp1, 3.2.4, 3.2.3
Environment: Hibernate 3.2.5.ga
MySQL 5.0.42
Reporter: Stefan Hauk
Priority: Minor
Here is a piece of code from org.hibernate.jdbc.AbstractBatcher's closeStatements() method:
Iterator iter = resultSetsToClose.iterator();
while ( iter.hasNext() ) {
try {
logCloseResults();
( (ResultSet) iter.next() ).close();
}
catch (SQLException e) {
// no big deal
log.warn("Could not close a JDBC result set", e);
}
catch (Throwable e) {
// sybase driver (jConnect) throwing NPE here in certain cases
log.warn("Could not close a JDBC result set", e);
}
}
resultSetsToClose.clear();
In case there is a ConcurrentModificationException thrown when iterating over the resultSetsToClose HashSet the exception will be caught by the catch(Throwable) clause. However, the iteration may continue infinitely because of the corrupted HashSet. This pegs one CPU and logs the following stack trace over and over again:
28/11 20:16:50 WARN AbstractBatcher [resin-tcp-connection-myserver:6001-15] Could not close a JDBC result set
java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextEntry(HashMap.java:841)
at java.util.HashMap$KeyIterator.next(HashMap.java:877)
at org.hibernate.jdbc.AbstractBatcher.closeStatements(AbstractBatcher.java:314)
at org.hibernate.jdbc.ConnectionManager.cleanup(ConnectionManager.java:382)
at org.hibernate.jdbc.ConnectionManager.close(ConnectionManager.java:324)
at org.hibernate.impl.SessionImpl.close(SessionImpl.java:298)
at org.springframework.orm.hibernate3.SessionFactoryUtils.closeSession(SessionFactoryUtils.java:774)
at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.closeSession(OpenSessionInViewFilter.java:252)
at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:183)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75)
at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:70)
at com.caucho.server.cache.CacheFilterChain.doFilter(CacheFilterChain.java:188)
at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:178)
at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229)
at com.caucho.server.hmux.HmuxRequest.handleRequest(HmuxRequest.java:419)
at com.caucho.server.port.TcpConnection.run(TcpConnection.java:389)
at com.caucho.util.ThreadPool.runTasks(ThreadPool.java:492)
at com.caucho.util.ThreadPool.run(ThreadPool.java:425)
at java.lang.Thread.run(Thread.java:595)
The catch(Throwable) block was added in Hibernate 3.2.3 if I saw that correctly. Apparently the reason was to catch a NPE thrown by a sybase driver here, but catching Throwable catches more than that and produces this side-effect.
Now I do realize that the ConcurrentModificationException might be caused by not using Hibernate in a correct way, but I haven't determined the cause for it yet. However, I do think that Hibernate should fail more gracefully than it currently does.
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15 years, 4 months