HealthCheck

Namespace: Wisej.Core

Assembly: Wisej.Framework (4.1.0.0)

Handler for healthcheck requests sent by load balancers.

C#

public class HealthCheck

VB.NET

Public Class HealthCheck

Configure the load balancer to use "http://your-server/healthcheck.wx" as the health check URL.

You can modify the default healthcheck value either by placing a Healthcheck.json file in the root of your project, or programmatically assigning the values to Wisej.Core.HealthCheck properties. See load-balancing.

static class Program {

  // static constructor.
  static Program() {

    Wisej.Core.HealthCheck.MaxCPU = 0; // ignore
    Wisej.Core.HealthCheck.MaxMemory = 85;
    
  }
}

Fields

Name	Type	Description
IsServerAvailable	Func<Boolean>	Custom function placeholder assignable by the application to determine when a server should return that it's not available to receive more sessions.

Properties

Enabled

Boolean: Returns or sets whether the load balancing features are enabled.

MaxCPU

Int32: Maximum CPU load in percentage: Default: 100; 0 = unlimited.

MaxMemory

Int32: Maximum percentage of allocated memory. Default: 70; 0 = unlimited.

MaxSessions

Int32: Maximum number of active sessions: Default: 0; 0 = unlimited.

ResponseHeader

String: Returns or sets the response header to return to the browser.

Can be used in conjunction with the ReturnCode set to 200 (OK) and the value of the return header set to "Refresh: 0; Set-Cookie: AffinityCookie=" to cause the client browser to load the affinity cookie and reload the page to (hopefully) reach another server.

RetryAfter

Int32: Value for the Retry-After header in minutes. Default: 10.

ReturnCode

Int32: Http return code to signal that this server is not available. Default: 503.

ReturnUrl

String: Redirection Url in alternative to the error return code. Default: null.