private FabricTestAction GetMoveSecondaryReplicaAction(MoveSecondaryReplicaStateTransitionAction ragAction)
{
Requires.Argument("moveSecondaryReplicaStateTransitionAction", ragAction).NotNull();
Uri serviceUri = ragAction.ServiceUri;
Guid guid = ragAction.PartitionId;
string currentNodeName = ragAction.NodeFrom;
string newNodeName = ragAction.NodeTo;
string report = StringHelper.Format(
"Generating Action: {0}\n\t\tService: {1}\n\t\tPartition: {2}\n\t\tFrom: {3} To: {4}",
ragAction.ActionType,
serviceUri,
guid,
currentNodeName,
newNodeName);
Log.WriteInfo(TraceType, report);
if (this.reportFunction != null)
{
this.reportFunction(report);
}
var partitionSelector = PartitionSelector.PartitionIdOf(serviceUri, guid);
return(new MoveSecondaryAction(currentNodeName, newNodeName, partitionSelector, ragAction.ForceMove));
}
private StateTransitionAction GenerateOneMoveSecondaryAction(Guid activityId = default(Guid))
{
var availableSecondaryReplicas = this.stateSnapshot.GetFaultableReplicas(true /*IsStateful*/).Where(r => this.SelectReadySecondary(r));
if (availableSecondaryReplicas.Count() <= 0)
{
return(null);
}
var secondaryChosen = availableSecondaryReplicas.ElementAt(this.Random.Next(availableSecondaryReplicas.Count()));
var partitionEntities = secondaryChosen.ParentPartitionEntity.ReplicaList.Select <ReplicaEntity, string>(r => r.Replica.NodeName);
var availableNodesToMove = this.stateSnapshot.GetFaultableNodes().Where(n => !partitionEntities.Contains(n.CurrentNodeInfo.NodeName));
if (availableNodesToMove.Count() <= 0)
{
return(null);
}
var newSecondaryNode = availableNodesToMove.ElementAt(this.Random.Next(availableNodesToMove.Count()));
TestabilityTrace.TraceSource.WriteInfo(
this.TraceType,
"{0}: Replica '{1}' has been chosen for MoveSecondary to '{2}'.",
activityId,
secondaryChosen,
newSecondaryNode.CurrentNodeInfo.NodeName);
secondaryChosen.MoveReplica(newSecondaryNode.CurrentNodeInfo.NodeName, activityId);
var replicaAction = new MoveSecondaryReplicaStateTransitionAction(
secondaryChosen.ParentPartitionEntity.ParentServiceEntity.ServiceName(),
secondaryChosen.ParentPartitionEntity.Guid,
secondaryChosen.Replica.NodeName,
newSecondaryNode.CurrentNodeInfo.NodeName,
this.stateSnapshot.ClusterSnapshotId);
return(replicaAction);
}