private FabricTestAction GetMovePrimaryReplicaAction(MovePrimaryReplicaStateTransitionAction ragAction)
{
Uri serviceUri = ragAction.ServiceUri;
Guid guid = ragAction.PartitionId;
string newNodeName = ragAction.NodeTo;
string report = StringHelper.Format(
"Generating Action: {0}\n\t\tService: {1}\n\t\tPartition: {2}\n\t\tTo: {3}",
ragAction.ActionType,
serviceUri,
guid,
newNodeName);
Log.WriteInfo(TraceType, report);
if (this.reportFunction != null)
{
this.reportFunction(report);
}
var partitionSelector = PartitionSelector.PartitionIdOf(serviceUri, guid);
return(new MovePrimaryAction(newNodeName, partitionSelector, ragAction.ForceMove));
}
private StateTransitionAction GenerateOneMovePrimaryAction(Guid activityId = default(Guid))
{
var availablePrimaryReplicas = this.stateSnapshot.GetFaultableReplicas(true /*IsStateful*/).Where(r => this.SelectReadyPrimary(r));
if (availablePrimaryReplicas.Count() <= 0)
{
return(null);
}
var primaryChosen = availablePrimaryReplicas.ElementAt(this.Random.Next(availablePrimaryReplicas.Count()));
var availableNodesToMove = this.stateSnapshot.GetFaultableNodes().Where(n => n.CurrentNodeInfo.NodeName != primaryChosen.Replica.NodeName);
if (availableNodesToMove.Count() <= 0)
{
return(null);
}
var newPrimaryNode = availableNodesToMove.ElementAt(this.Random.Next(availableNodesToMove.Count()));
TestabilityTrace.TraceSource.WriteInfo(
this.TraceType,
"{0}: Replica:'{1}' has been chosen for MovePrimary to '{2}'.",
activityId,
primaryChosen,
newPrimaryNode.CurrentNodeInfo.NodeName);
primaryChosen.MoveReplica(newPrimaryNode.CurrentNodeInfo.NodeName, activityId);
var replicaAction = new MovePrimaryReplicaStateTransitionAction(
primaryChosen.ParentPartitionEntity.ParentServiceEntity.ServiceName(),
primaryChosen.ParentPartitionEntity.Guid,
newPrimaryNode.CurrentNodeInfo.NodeName,
this.stateSnapshot.ClusterSnapshotId);
return(replicaAction);
}
