public StatelessServiceScaler(CancellationToken cancellationToken, ScalingRule rule, params string[] servicesNames)
{
this.rule = rule;
this.serviceNameToScale = servicesNames;
this.lastScaleDate = DateTime.MinValue;
cancelSource = new CancellationTokenSource();
}
/// <summary>
/// This is the main entry point for your service replica.
/// This method executes when this replica of your service becomes primary and has write status.
/// </summary>
/// <param name="cancellationToken">Canceled when Service Fabric needs to shut down this service replica.</param>
protected override async Task RunAsync(CancellationToken cancellationToken)
{
var rule = new ScalingRule()
{
MinimalInstanceCount = 1, // always maintain 1 instance up
MaximalInstanceCount = 5, // maximum is 5 instance count
DecreaseThreshold = 1, // decrease instance count if less than 1 message in queue
IncreaseThreshold = 10, // increase +1 instance count if higher than 10 message in queue
DelayBetweenScaling = 10
};
// TODO : replace the services names to scale by dynamic name constructing/retrieving.
scaler = new StatelessServiceScaler(cancellationToken, rule, "fabric://Hackfest/generator");
await base.RunAsync(cancellationToken);
}
