C# Aspnetcore healthchecks已忽略降级状态
我是根据MSDN网站上发布的信息了解健康检查的: 下面的代码片段告诉我们,如果一个不健康的检查返回,我可以通过说它已降级来覆盖该值C# Aspnetcore healthchecks已忽略降级状态,c#,asp.net-core,health-check,C#,Asp.net Core,Health Check,我是根据MSDN网站上发布的信息了解健康检查的: 下面的代码片段告诉我们,如果一个不健康的检查返回,我可以通过说它已降级来覆盖该值 services.AddHealthChecks() .AddCheck<ExampleHealthCheck>( "example_health_check", failureStatus: HealthStatus.Degraded, tags: new[] { "
services.AddHealthChecks()
.AddCheck<ExampleHealthCheck>(
"example_health_check",
failureStatus: HealthStatus.Degraded,
tags: new[] { "example" });
services.AddHealthChecks()
.AddCheck(
“健康检查示例”,
故障状态:HealthStatus.Degraded,
标签:新[]{“示例”});
因此,我尝试了这个实现,假设我会得到一个降级的结果,而不是一个不健康的结果:
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
public void ConfigureServices(IServiceCollection services)
{
services.AddHealthChecks().AddCheck<ExampleHealthCheck>("ExampleHealthCheck", failureStatus: HealthStatus.Degraded);
}
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
app.UseRouting();
app.UseEndpoints(endpoints =>
{
endpoints.MapHealthChecks("/health");
});
}
}
internal class ExampleHealthCheck : IHealthCheck
{
public Task<HealthCheckResult> CheckHealthAsync(HealthCheckContext context, CancellationToken cancellationToken = default(CancellationToken))
{
return Task.FromResult(HealthCheckResult.Unhealthy("An unhealthy result."));
}
}
公共类启动
{
公共启动(IConfiguration配置)
{
配置=配置;
}
公共IConfiguration配置{get;}
public void配置服务(IServiceCollection服务)
{
services.AddHealthChecks().AddCheck(“ExampleHealthCheck”,failureStatus:HealthStatus.Degraded);
}
public void配置(IApplicationBuilder应用程序、IWebHostEnvironment环境)
{
app.UseRouting();
app.UseEndpoints(端点=>
{
端点。MapHealthChecks(“/health”);
});
}
}
内部类示例HealthCheck:IHealthCheck
{
公共任务CheckHealthAsync(HealthCheckContext上下文,CancellationToken CancellationToken=default(CancellationToken))
{
返回Task.FromResult(HealthCheckResult.unhealth(“一个不健康的结果”);
}
}
有人能解释一下为什么这不起作用或者我哪里弄错了吗?这很让人困惑,因为您希望HealthCheck会自动返回您在
failureStatus
属性上定义的结果,但HealthCheck会显式返回Unhealth
如果查看上的AddHealthCheck
方法,您将看到中仅创建了HealthCheckRegistration
的实例
public static IHealthChecksBuilder AddCheck(
this IHealthChecksBuilder builder,
string name,
IHealthCheck instance,
HealthStatus? failureStatus = null,
IEnumerable<string>? tags = null,
TimeSpan? timeout = null)
{
if (builder == null)
{
throw new ArgumentNullException(nameof(builder));
}
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
if (instance == null)
{
throw new ArgumentNullException(nameof(instance));
}
return builder.Add(new HealthCheckRegistration(name, instance, failureStatus, tags, timeout));
}
您是否尝试过更改
示例healthcheck
的checkhealthsync
的返回值?因此,与其返回不健康
,不如让代码返回例如健康
?
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
public void ConfigureServices(IServiceCollection services)
{
services.AddHealthChecks().AddCheck<ExampleHealthCheck>("ExampleHealthCheck", failureStatus: HealthStatus.Degraded);
}
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
app.UseRouting();
app.UseEndpoints(endpoints =>
{
endpoints.MapHealthChecks("/health");
});
}
}
internal class ExampleHealthCheck : IHealthCheck
{
public Task<HealthCheckResult> CheckHealthAsync(HealthCheckContext context, CancellationToken cancellationToken = default(CancellationToken))
{
return Task.FromResult(new HealthCheckResult(context.Registration.FailureStatus));
}
}