Problem with hibernate FetchType.Lazy and Backup spaces

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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:

1. 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.

2. Creating bean with @PostPrimary method which triggers AggregateObjectsTask which 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);
   

3. 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)