private static async Task MainAsync(string[] args)
{
//// App Metrics configuration
// Build metrics root
var metrics =
new MetricsBuilder()
.Report.ToGraphite($"net.tcp://{Program.GraphiteEndpoint}")
.Build();
// Build and run scheduler
var scheduler = new AppMetricsTaskScheduler(
TimeSpan.FromMilliseconds(Program.GraphiteUpdateIntervalMilliseconds),
async() => { await Task.WhenAll(metrics.ReportRunner.RunAllAsync()); });
scheduler.Start();
//// DataStax C# Driver configuration
Cassandra.Diagnostics.CassandraTraceSwitch.Level = TraceLevel.Warning;
Trace.Listeners.Add(new TextWriterTraceListener(Console.Out));
var cluster = Cluster.Builder()
.AddContactPoint(Program.ContactPoint)
.WithSessionName(Program.SessionName)
.WithMetrics(
metrics.CreateDriverMetricsProvider(),
new DriverMetricsOptions()
.SetEnabledNodeMetrics(NodeMetric.AllNodeMetrics)
.SetEnabledSessionMetrics(SessionMetric.AllSessionMetrics))
.Build();
var session = await cluster.ConnectAsync().ConfigureAwait(false);
//// Run some queries to have metrics data
var cts = new CancellationTokenSource();
var task = Task.Run(async() =>
{
while (!cts.IsCancellationRequested)
{
try
{
await session.ExecuteAsync(new SimpleStatement("SELECT * FROM system.local"));
}
catch (Exception ex)
{
Console.WriteLine($"ERROR: {ex}");
}
}
});
Console.WriteLine("Press enter to shutdown the session and exit.");
Console.ReadLine();
cts.Cancel();
await task.ConfigureAwait(false);
await cluster.ShutdownAsync().ConfigureAwait(false);
}
