Actually, it's way simpler. My question is just why, under a PESSIMISTIC lock management, I do get an OPTIMISTIC locking error.
[] Leo On Sat, Oct 24, 2015 at 3:35 AM, Hal Hildebrand <hal.hildebr...@me.com> wrote: > So, You’ll have to learn about transaction and how that all works. > Because if you don’t know why it happened in the first place, I certainly > can’t tell you how to avoid it > > -Hal > > > On Oct 23, 2015, at 4:07 AM, Leonardo K. Shikida <shik...@gmail.com> > wrote: > > > > how can I avoid it? > > > > [] > > > > Leo > > > > On Thu, Oct 22, 2015 at 1:08 PM, Hal Hildebrand <hal.hildebr...@me.com> > > wrote: > > > >> It means you are using optimistic concurrency control with JPA, and > that a > >> modification has been detected that aborted the transaction. Something > >> modified what you were reading in another txn, and - well - this txn > tried > >> to commit and found a different version for something it depended upon > in > >> the txn. Thus the error. > >> > >>> On Oct 22, 2015, at 5:33 AM, Leonardo K. Shikida <shik...@gmail.com> > >> wrote: > >>> > >>> Hi > >>> > >>> I've got this error in my web app. > >>> > >>> <openjpa-2.3.0-nonfinal-1540826-r422266:1542644 fatal store error> > >>> org.apache.openjpa.persistence.OptimisticLockException: Optimistic > >> locking > >>> errors were detected when flushing to the data store. The following > >>> objects may have been concurrently modified in another transaction: > >>> [com.ericsson.neas.tomee.entity.DriverJob-516036] > >>> at > >>> > >> > org.apache.openjpa.kernel.BrokerImpl.newFlushException(BrokerImpl.java:2359) > >>> at > >> org.apache.openjpa.kernel.BrokerImpl.flush(BrokerImpl.java:2207) > >>> at > >>> org.apache.openjpa.kernel.BrokerImpl.flushSafe(BrokerImpl.java:2105) > >>> at > >> org.apache.openjpa.kernel.BrokerImpl.flush(BrokerImpl.java:1876) > >>> at > >>> org.apache.openjpa.kernel.QueryImpl.isInMemory(QueryImpl.java:973) > >>> at > org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:853) > >>> at > org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:794) > >>> at > >>> > >> > org.apache.openjpa.kernel.DelegatingQuery.execute(DelegatingQuery.java:542) > >>> at > >>> org.apache.openjpa.persistence.QueryImpl.execute(QueryImpl.java:275) > >>> at > >>> > >> > org.apache.openjpa.persistence.QueryImpl.getResultList(QueryImpl.java:291) > >>> at > >>> > >> > org.apache.openjpa.persistence.QueryImpl.getSingleResult(QueryImpl.java:319) > >>> > >>> but openjpa.LockManager is set to pessimistic > >>> > >>> what does it mean and how can I avoid it? > >>> > >>> [] > >>> > >>> Leo > >> > >> > >
