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fatal store error org apache openjpa persistence optimisticlockexception Lookout, West Virginia

reply | permalink Daryl Stultz The first question "the experts" usually ask is "Are you using build-time or run-time enhancement?" If you are using run-time as appears to be the case If so, what's the value of declaring a cascading relationship? Exploded Suffixes Can two integer polynomials touch in an irrational point? Instead I > > > get the optimistic lock errors.

In the following test, an optimistic lock violation happened. === CODE STARTS HERE === EntityManager em = emf.createEntityManager(); { First, when writing a Timestamp version field to the database, OpenJPA will round a Timestamp to the precision which is defined by the OpenJPA property openjpa.jdbc.DBDictionary.datePrecision. Problem summary **************************************************************** * USERS AFFECTED: All users of IBM WebSphere Application * * Server V8.0.0, V8.5.0, and V8.5.5 who make * * use of a java.sql.Timestamp as a JPA * r035198x Jul 13, 2011 12:48 PM (in response to 873758) If the oldPortName is the only value you have for finding the BcsPrimaryBuffer to update then you need to write a

This does not require multiple threads to happen. The following objects may have been concurrently modified in another transaction: [org.apache.openjpa.enhance.entities$BcsPrimaryBuffer$pcsubclass-JCVLFLU0523HD2160033-1-1-2-1] at org.apache.openjpa.kernel.BrokerImpl.newFlushException(BrokerImpl.java:2096) at org.apache.openjpa.kernel.BrokerImpl.flush(BrokerImpl.java:1946) at org.apache.openjpa.kernel.BrokerImpl.flushSafe(BrokerImpl.java:1844) at org.apache.openjpa.kernel.BrokerImpl.beforeCompletion(BrokerImpl.java:1762) at org.apache.openjpa.kernel.LocalManagedRuntime.commit(LocalManagedRuntime.java:81) at org.apache.openjpa.kernel.BrokerImpl.commit(BrokerImpl.java:1292) at org.apache.openjpa.kernel.DelegatingBroker.commit(DelegatingBroker.java:861) at org.apache.openjpa.persistence.EntityManagerImpl.commit(EntityManagerImpl.java:408) ... 2 more First I created an entity listed on here (https://gist.github.com/851075). How to prevent Beamer from repeatedly expanding macros in \frametitle when frame-breaking With the passing of Thai King Bhumibol, are there any customs/etiquette as a traveler I should be aware of?

Re: Facing optimistic lock exception in OpenJPA...? Submit feedback to IBM Support 1-800-IBM-7378 (USA) Directory of worldwide contacts Contact Privacy Terms of use Accessibility Skip navigationOracle Community DirectoryOracle Community FAQGo Directly To Oracle Technology Network CommunityMy Oracle Support This indicates that the >> object was concurrently modified in another transaction. >> FailedObject: [email protected] >> at >> org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flushAndUpdate(PreparedStatementManagerImpl.java:123) >> at >> org.apache.openjpa.jdbc.kernel.BatchingPreparedStatementManagerImpl.flushAndUpdate(BatchingPreparedStatementManagerImpl.java:81) >> Here is the entity: @Entity public class VersionTSEntity implements Serializable { @Id private Long id; @Version private Timestamp updateTimestamp; private Integer someInt; And here is my test, with pertinent in-line comments:

Re: Facing optimistic lock exception in OpenJPA...? 873758 Jul 13, 2011 10:47 AM (in response to java4ever) Hi, you must not modify the id of an entity. Am I simply mistaken? If not null I do a merge. The stack trace is attached at the last. >> When I changed the field type of 'questionNo' to Integer (int -> Integer), >> the violation did not happen. >> >> Some

Best,LairdOn Wed, Mar 2, 2011 at 12:45 PM, KAWANAKA Shinya-2 [via OpenJPA] <[hidden email]> wrote: Rick, I used runtime enhancement at that time. The following objects may have been concurrently modified in another transaction: [com.jpa.entities.BobRun-NULL] [11/15/11 11:59:05:652 EST] 00000018 SystemErr R at org.apache.openjpa.kernel.BrokerImpl.newFlushException(BrokerImpl.java:2182) [11/15/11 11:59:05:652 EST] 00000018 SystemErr R at org.apache.openjpa.kernel.BrokerImpl.flush(BrokerImpl.java:2029) [11/15/11 11:59:05:652 EST] Any insights appreciated. This property defines to what precision OpenJPA should round a version Timestamp.

As such, OpenJPA will throw an OptimisticLockException as it will assume the row in the database has been updated. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed I'm hitting a rather interesting issue and unfortunately to describe it is going to be a bit lengthy......so settle in. So it seems that there are two unique things causing us to hit the issue: 1) merge/clear/merge which causes a 'checkVersion', 2) rounding of timestamps.

uninteresting accessors & other methods omitted... */ > > } > > > > //---------------------------------------------------------------- > > @Entity > > public class Grouping extends Versionable implements Serializable { > > > Any insights appreciated. Not the answer you're looking for? Please type your message and try again.

reply | permalink Cil-Gamir This is a service class between the front end and the DAO package za.co.rmb.rac.riskRatingEngineWeb.service; import java.util.List; import za.co.rmb.rac.riskRatingEngineWeb.dao.RiskRatingDAO; import za.co.rmb.rac.riskRatingEngineWeb.entities.Variable; /** * * @author JHV */ public uninteresting accessors & other methods omitted... */ > > } > > > > //---------------------------------------------------------------- > > @Entity > > public class Ingredient extends Versionable implements Serializable { > > > This indicates that the object was concurrently modifiedin another transaction.FailedObject:org.apache.openjpa.enhance.za$co$rmb$rac$riskRatingEngineWeb$entities$Variable$[email protected]redStatementManagerImpl.checkUpdateCount(BatchingPreparedStatementManagerImpl.java:269)atorg.apache.openjpa.jdbc.kernel.BatchingPreparedStatementManagerImpl.flushBatch(BatchingPreparedStatementManagerImpl.java:189)atorg.apache.openjpa.jdbc.kernel.BatchingConstraintUpdateManager.flush(BatchingConstraintUpdateManager.java:63)atorg.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush(AbstractUpdateManager.java:89)atorg.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush(AbstractUpdateManager.java:72)atorg.apache.openjpa.jdbc.kernel.JDBCStoreManager.flush(JDBCStoreManager.java:717)atorg.apache.openjpa.kernel.DelegatingStoreManager.flush(DelegatingStoreManager.java:130)... 12 more--View this message in context: http://n2.nabble.com/Re-SOLVED-Re-Locking-Exception-after-Persisting-new-entity-tp3992651p3993884.htmlSent from the OpenJPA Users mailing list archive at Nabble.com. Try –Henry Aloni Sep 5 '15 at 20:28 add a comment| 2 Answers 2 active oldest votes up vote 1 down vote You are running

The following objects may have been concurrently modified in another transaction: [org.apache.openjpa.enhance.entities$BcsPrimaryBuffer$pcsubclass-JCVLFLU0523HD2160033-1-1-2-1] at org.apache.openjpa.persistence.EntityManagerImpl.commit(EntityManagerImpl.java:419) at entities.BcsPrimaryBufferDAO.updatePortName(BcsPrimaryBufferDAO.java:194) at com.test.local.EntityManagerTester.main(EntityManagerTester.java:36) Caused by: org.apache.openjpa.persistence.OptimisticLockException: Optimistic locking errors were detected when I need to update the value for port in BcsPrimaryBuffer table in db to the new value. FailedObject: hat.entities.VersionTSEntity-1390400526251 at org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.populateRow Manager(AbstractUpdateManager.java:183) at org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush(Abstr actUpdateManager.java:97) at org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush(Abstr actUpdateManager.java:78) at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.flush(JDBCStoreM anager.java:742) at org.apache.openjpa.kernel.DelegatingStoreManager.flush(Delegatin gStoreManager.java:131) ... 28 more This exception only occurs sporadically. I'm also not familiar with enhancing, my entity classes were declared as final, and JPA complained saying that it cannot do the enhancement for me if my classes are final.

uninteresting accessors & other methods omitted... */ > > } > > //---------------------------------------------------------------- > @Entity > public class Step extends Versionable implements Serializable { > > private static final long serialVersionUID Thanks, Rick On Wed, Mar 2, 2011 at 10:31 AM, KAWANAKA Shinya <[hidden email]>wrote: > Hi list, > > I encountered the weird situation that an optimistic lock violation > happened. The DDL, BTW, does have 'on delete cascade' on > > the foreign key constraints. > > > > Here's the exception: > > > > org.apache.openjpa.persistence.RollbackException: Subscribed!

Any insights appreciated. maybe this IDE is bugging). r035198x Jul 13, 2011 10:40 AM (in response to java4ever) Are running multiple threads that are updating the same record? Heiko Kopp / Fa.

I think you missed that.. [;)] If you are enforcing optimistic locking at any level then your update should always anticipate that exceptionNo i am not forcing any Locking anywhere. APAR status Closed as program error. So how can I > > persuade OpenJPA to delete from the bottom up or just delete from RECIPE > > and be done with it? Am I simply mistaken?

My CEO wants permanent access to every employee's emails. other fields/members } // ----------------- // SECTION A: one thread of the application that reads the entity // ----------------- EntityManager em = null; EntityTransaction transaction = null; try { em = ANY entity of type BobRun is read with em.find() before a NEW entity of type BobRun is created with em.merge()), then the following error occurs on the commit() of SECTION_B: [11/15/11 In the following test, > an > >> optimistic lock violation happened. > >> > >> === CODE STARTS HERE === > >> EntityManager em = emf.createEntityManager(); >

In the following test, an >> optimistic lock violation happened. >> >> === CODE STARTS HERE === >> EntityManager em = emf.createEntityManager(); >> { >> uninteresting data fields omitted... */ //--------------------------------------------------------------- ACCESSORS public Integer getGroupId() { return groupId; asked 5 years ago viewed 5767 times active 5 years ago Visit Chat Related 2Persisting deep object graph with JPA without em.flush()0jpa update for objects having comosite primary key8updating multiple rows assist.

but after that, you will have problem with the modified id. java4ever Jul 13, 2011 1:52 PM (in response to 873758) Tamas wrote: I recommended him to use int id, not the port number, but somewhy he doesnt want to : - Can Communism become a stable economic strategy? As previously stated, there are two places where a Timestamp version field may be rounded: either by OpenJPA, or the database.

Try our newsletter Sign up for our newsletter and get our top new questions delivered to your inbox (see an example). reply | permalink Cil-Gamir The DAO Above gets extended by this class package za.co.rmb.rac.riskRatingEngineWeb.dao; import java.util.ArrayList; import java.util.List; import javax.persistence.EntityManager; import javax.persistence.OptimisticLockException; import javax.persistence.Persistence; import javax.persistence.Query; import org.apache.log4j.Logger; import za.co.rmb.rac.basicjpadao.DAO; import When I added (3) and traced the function, I found that ImplHelper.getUpdateField(sm) in AbstractUpdateManager#populateRowManager returned a dirty flag that said the 'questionNo' was dirty. === CODE HERE ===