private async Task Should_collect_and_publish_metrics_and_gossip_them_around_the_node_ring()
{
await AwaitAssertAsync(() =>
{
AwaitClusterUp(Roles.ToArray());
}, TimeSpan.FromSeconds(30));
EnterBarrier("cluster_started");
await AwaitAssertAsync(() =>
{
Cluster.State.Members.Count(m => m.Status == MemberStatus.Up).Should().Be(Roles.Count);
}, TimeSpan.FromSeconds(30));
await AwaitAssertAsync(() =>
{
MetricsView.ClusterMetrics.Count.Should().Be(Roles.Count);
}, TimeSpan.FromSeconds(30));
await WithinAsync(10.Seconds(), async() =>
{
var collector = new MetricsCollectorBuilder().Build(Cluster.System);
collector.Sample().Metrics.Count.Should().BeGreaterThan(3);
EnterBarrier("after");
});
}
public static IServiceCollection AddBuiltInMetrics(this IServiceCollection services, MetricsCollectorBuilder?builder = null)
{
services.TryAddSingleton <ICpuUsageMonitor, CpuUsageMonitor>();
services.AddHostedService(sp => (CpuUsageMonitor)sp.GetRequiredService <ICpuUsageMonitor>());
if (builder == null)
{
builder = MetricsCollectorBuilder.Default();
}
services.AddHostedService(sp => ActivatorUtilities.CreateInstance <MetricsCollectorService>(sp, builder.Build(sp)));
return(services);
}
/// <summary>
/// Configures a <see cref="IMetricsCollector" /> and adds it to the service collection.
/// </summary>
/// <param name="services">
/// An <see cref="IServiceCollection" /> to add the collector to.
/// </param>
public static IMetricsCollectorBuilder AddMetricsCollector(this IServiceCollection services)
{
var builder = new MetricsCollectorBuilder(services);
services
.AddSingleton <MetricsCollector>()
.AddSingleton <IMetricsCollector>(s => s.GetService <MetricsCollector>())
.AddSingleton <IHostedService>(s => s.GetService <MetricsCollector>())
.AddSingleton <MetricSourceOptions>()
.AddSingleton <MetricsCollectorOptions>(s => builder.Build(s));
#if NETCOREAPP
services
.AddSingleton <DiagnosticsCollector>()
.AddSingleton <IDiagnosticsCollector>(s => s.GetService <DiagnosticsCollector>())
.AddSingleton <IHostedService>(s => s.GetService <DiagnosticsCollector>());
#endif
return(builder);
}
