About concurrency

11-20 of 110Refresh
JDO Doc
4

javax.jdo.Transaction

javax.jdo Interface Transaction The JDO Transaction interface provides for initiation and completion of transactions under user control. It is a sub-interface of the PersistenceManager that deals with options and transaction demarcation. Transaction options include whether optimistic concurrency
Forum
3

Failed to generate dynamic type objectdb.java.util.ArrayList

) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown
Forum
3

Glassfish 3.1.2.1 and ObjectDB 2.4.3

.Parser$3.call(Parser.java:296) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run
Issue
3

each 1-2 days objects on some objectdb level lock/block each other

(0x00000000bc88c318) is related to reading from the database file using the new "objectdb.temp.concurrent ... to block the same query from executing concurrently. But for this to work on the ObjectDB ... with an execution time above that Build 2.7.5_03 includes an attempt to improve concurrency by replacing
Forum
3

Adding EntityListener Throws Unexpected Internal Exception

$get$1.apply(ApplicationProvider.scala:105) at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24) at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24) at scala.concurrent.forkjoin.ForkJoinTask$AdaptedRunnableAction.exec(ForkJoinTask.java
Forum
3

Where Does ObjectDB Block/Lock?

blocking/locking so I might adapt to achieve better concurrency. 1) Where are locks when accessing ... optimistic=true to get more concurrency?   All relevant PersistenceManager / Transaction methods ... against the same database concurrently (not in a queue) you will need multiple PersistenceManager
Forum
3

JBoss 7 startup fails

(ServiceControllerImpl.java:2291) 13:49:37,714 ERROR [stderr] (MSC service thread 1-3) at java.util.concurrent ... thread 1-3) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) 13 ... .ServiceControllerImpl$ClearTCCLTask.run(ServiceControllerImpl.java:2291) at java.util.concurrent.ThreadPoolExecutor
Forum
3

Database is erased after deploying a new web application version

list? Do you have several such processes running concurrently? > When should I use the close method ... .apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor
Forum
3

Apache Tomee 1.5.2: Failed to use JTA (TransactionManager is not found)

(HostConfig.java:1637) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker
Issue
3

Exception occurs on Linux during commit

.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1301) at java.util.concurrent.Semaphore.acquire(Semaphore.java:317) at com ... ) at com.golocal.MiningTask.run(MiningTask.java:65) at java.util.concurrent