Problem with hibernate FetchType.Lazy and Backup spaces
Hi,
I am using initial load to fetch huge amount of data to partitioned space. I have to join a lot of tables and because of performance I am using fetch = FetchType.LAZY when I want to join some more complex objects. I develop some kind of workaround to have all objects in space without LAZY fetching on getters:
Load all very complex object (which have
FetchType.LAZY) separately.@SpaceClass @Entity @Table(name = "A") public class A { @OneToOne(fetch = FetchType.LAZY) @JoinColumns({@JoinColumn(name = "b_Id", referencedColumnName ="id"), @JoinColumn(name = "b_ValidFrom", referencedColumnName = "validFrom") }) private B b;in this example I fetch class B and A to space separately.
Creating bean with
@PostPrimarymethod which triggersAggregateObjectsTaskwhich performs joins manually meaning it joins columns inside space :B bTemplate = new B(); bTemplate .setId(a.getId()); bTemplate .setValidFrom.(a.getB_ValidFrom()); bObj = gigaSpace.read(bTemplate); a.setB(bObj); gigaspace.write(a);Primary spaces starts normally but while creating backup space I got these ugly exceptions:
at com.mypackage.B_$$_javassist_23.equals(B$$_javassist_23.java) [4/8000] at com.gigaspaces.internal.cluster.node.impl.packets.data.operations.UpdateReplicationPacketData.serializePreviousFixedValues(UpdateReplicationPacketData.java:400) [4/8000] at com.gigaspaces.internal.cluster.node.impl.packets.data.operations.UpdateReplicationPacketData.serializePreviousEntryData(UpdateReplicationPacketData.java:374) [3/15352] at com.gigaspaces.internal.cluster.node.impl.router.spacefinder.ConnectionReference.dispatch(ConnectionReference.java:53) [5/10616] at java.lang.Thread.run(Thread.java:662) [4/8000] at com.gigaspaces.internal.cluster.node.impl.packets.data.operations.UpdateReplicationPacketData.writeExternalPost91(UpdateReplicationPacketData.java:365) [5/10616] Caused by: org.hibernate.LazyInitializationException: could not initialize proxy - no Session [5/10616] at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:167) [3/15352] at com.gigaspaces.internal.cluster.node.impl.groups.AbstractReplicationSourceChannel$IterativeHandshakeHandler.call(AbstractReplicationSourceChannel.java:1388) [5/10616] at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:215) [4/8000] at com.gigaspaces.internal.cluster.node.impl.packets.data.operations.UpdateReplicationPacketData.writeExternal(UpdateReplicationPacketData.java:327) [5/10616] at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:190) [3/15352] at com.gigaspaces.internal.cluster.node.impl.groups.AbstractReplicationSourceChannel$IterativeHandshakeHandler.call(AbstractReplicationSourceChannel.java:1362) [5/10616] at com.mypackage.B_$$_javassist_23.equals(B_$$_javassist_23.java) [4/8000] at java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1429) [5/10616] at com.gigaspaces.internal.cluster.node.impl.packets.data.operations.UpdateReplicationPacketData.serializePreviousFixedValues(UpdateReplicationPacketData.java:400) [5/10616] at com.gigaspaces.internal.cluster.node.impl.packets.data.operations.UpdateReplicationPacketData.serializePreviousEntryData(UpdateReplicationPacketData.java:374) [3/15352] at com.gigaspaces.internal.utils.concurrent.ScheduledThreadPoolAsyncHandlerProvider$AsyncRunnableWrapper$ExecutionTask.run(ScheduledThreadPoolAsyncHandlerProvider.java:342) [5/10616] at com.gigaspaces.internal.cluster.node.impl.packets.data.operations.UpdateReplicationPacketData.writeExternalPost91(UpdateReplicationPacketData.java:365) [4/8000] at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1398) [5/10616] at com.gigaspaces.internal.cluster.node.impl.packets.data.operations.UpdateReplicationPacketData.writeExternal(UpdateReplicationPacketData.java:327) [3/15352] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) [5/10616] at java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1429) [5/10616] at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1398) [5/10616] at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158) [5/10616] at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:330) [5/10616] at com.gigaspaces.internal.cluster.node.impl.backlog.globalorder.GlobalOrderOperationPacket.writeExternal(GlobalOrderOperationPacket.java:113) [4/8000] at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158) [5/10616] at java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1429) [3/15352] at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) [5/10616] at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1398) [4/8000] at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:330) [5/10616] at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158) [3/15352] at java.util.concurrent.FutureTask.run(FutureTask.java:138) [5/10616] at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:330) [4/8000] at com.gigaspaces.internal.cluster.node.impl.backlog.globalorder.GlobalOrderOperationPacket.writeExternal(GlobalOrderOperationPacket.java:113) [5/10616] at java.util.LinkedList.writeObject(LinkedList.java:943) [3/15352] at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98) [5/10616] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [4/8000] at java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1429) [5/10616] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [3/15352] [5/10616] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [4/8000] at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1398) [4/8000] at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158) [5/10616] at java.lang.reflect.Method.invoke(Method.java:597) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:206) [5/10616] at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945) [4/8000] at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:330) [5/10616] at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1469) [3/15352] [5/10616] at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400) [4/8000] at java.util.LinkedList.writeObject(LinkedList.java:943) [4/8000] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [5/10616] at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [5/10616] at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:330) [5/10616] at com.gigaspaces.internal.serialization.ObjectClassSerializer.write(ObjectClassSerializer.java:36) [5/10616] [4/8000] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [4/8000] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at com.gigaspaces.internal.io.IOUtils.writeObject(IOUtils.java:668) [3/15352] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [5/10616] at com.gigaspaces.internal.cluster.node.impl.backlog.reliableasync.ReliableAsyncHandshakeIteration.writeExternal(ReliableAsyncHandshakeIteration.java:44) [4/8000] at java.lang.reflect.Method.invoke(Method.java:597) [5/10616] at java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1429) [3/15352] at java.lang.Thread.run(Thread.java:662) [5/10616] at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1398) [5/10616] at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158) [4/8000] at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945) [5/10616] at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:330) [5/10616] at com.gigaspaces.internal.serialization.ObjectClassSerializer.write(ObjectClassSerializer.java:36) [5/10616] at com.gigaspaces.internal.io.IOUtils.writeObject(IOUtils.java:668)
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