org.infinispan.statetransfer
Class ReplicatedStateTransferTask

java.lang.Object
  org.infinispan.statetransfer.BaseStateTransferTask
      org.infinispan.statetransfer.ReplicatedStateTransferTask

public class ReplicatedStateTransferTask
extends BaseStateTransferTask

Task which pushes keys to new nodes during join.

To reduce the duration of the state transfer, all the existing members participate in the state transfer.

We use a ConsistentHash to decide which existing node is supposed to push a certain key.

Example:

 - The membership is {A,B,C,D}
 - The new view is {A,B,C,D,E,F}
 - For K, the old CH is A,B and the new CH is A,C
 - A (since it is K's owner) now pushes K to C
 - For K2, the old CH is A,B and the new CH is B,C
 - B (since it is the backup owner and A left) pushes K2 to C
 

Since:

4.2

Author:

Bela Ban, Dan Berindei

Field Summary

Fields inherited from class org.infinispan.statetransfer.BaseStateTransferTask

cacheNotifier, chNew, chOld, configuration, dataContainer, initialView, members, newViewId, self, stateTransferChunkSize, stateTransferLock, trace

Constructor Summary

ReplicatedStateTransferTask(RpcManager rpcManager, Configuration configuration, DataContainer dataContainer, ReplicatedStateTransferManagerImpl stateTransferManager, StateTransferLock stateTransferLock, CacheNotifier cacheNotifier, int newViewId, Collection<Address> members, ConsistentHash chOld, ConsistentHash chNew, boolean initialView)

Method Summary

void	doPerformStateTransfer()

Methods inherited from class org.infinispan.statetransfer.BaseStateTransferTask

cancelStateTransfer, checkIfCancelled, commitStateTransfer, finishPushingState, performStateTransfer, pushPartialState

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ReplicatedStateTransferTask

public ReplicatedStateTransferTask(RpcManager rpcManager,
                                   Configuration configuration,
                                   DataContainer dataContainer,
                                   ReplicatedStateTransferManagerImpl stateTransferManager,
                                   StateTransferLock stateTransferLock,
                                   CacheNotifier cacheNotifier,
                                   int newViewId,
                                   Collection<Address> members,
                                   ConsistentHash chOld,
                                   ConsistentHash chNew,
                                   boolean initialView)

Method Detail

doPerformStateTransfer

public void doPerformStateTransfer()
                            throws Exception

Specified by:

doPerformStateTransfer in class BaseStateTransferTask

Throws:

Exception