public override async Task PerformExecuteAsync(object?state)
{
if (_healthChecksSettings.Notification.Enabled == false)
{
return;
}
if (_runtimeState.Level != RuntimeLevel.Run)
{
return;
}
switch (_serverRegistrar.CurrentServerRole)
{
case ServerRole.Subscriber:
_logger.LogDebug("Does not run on subscriber servers.");
return;
case ServerRole.Unknown:
_logger.LogDebug("Does not run on servers with unknown role.");
return;
}
// Ensure we do not run if not main domain, but do NOT lock it
if (_mainDom.IsMainDom == false)
{
_logger.LogDebug("Does not run if not MainDom.");
return;
}
// Ensure we use an explicit scope since we are running on a background thread and plugin health
// checks can be making service/database calls so we want to ensure the CallContext/Ambient scope
// isn't used since that can be problematic.
using (ICoreScope scope = _scopeProvider.CreateCoreScope())
using (_profilingLogger.DebugDuration <HealthCheckNotifier>("Health checks executing", "Health checks complete"))
{
// Don't notify for any checks that are disabled, nor for any disabled just for notifications.
Guid[] disabledCheckIds = _healthChecksSettings.Notification.DisabledChecks
.Select(x => x.Id)
.Union(_healthChecksSettings.DisabledChecks
.Select(x => x.Id))
.Distinct()
.ToArray();
IEnumerable <HealthCheck> checks = _healthChecks
.Where(x => disabledCheckIds.Contains(x.Id) == false);
var results = await HealthCheckResults.Create(checks);
results.LogResults();
// Send using registered notification methods that are enabled.
foreach (IHealthCheckNotificationMethod notificationMethod in _notifications.Where(x => x.Enabled))
{
await notificationMethod.SendAsync(results);
}
}
}
public override async Task <bool> PerformRunAsync(CancellationToken token)
{
if (_runtimeState.Level != RuntimeLevel.Run)
{
return(true); // repeat...
}
switch (_runtimeState.ServerRole)
{
case ServerRole.Replica:
_logger.Debug <HealthCheckNotifier>("Does not run on replica servers.");
return(true); // DO repeat, server role can change
case ServerRole.Unknown:
_logger.Debug <HealthCheckNotifier>("Does not run on servers with unknown role.");
return(true); // DO repeat, server role can change
}
// ensure we do not run if not main domain, but do NOT lock it
if (_runtimeState.IsMainDom == false)
{
_logger.Debug <HealthCheckNotifier>("Does not run if not MainDom.");
return(false); // do NOT repeat, going down
}
// Ensure we use an explicit scope since we are running on a background thread and plugin health
// checks can be making service/database calls so we want to ensure the CallContext/Ambient scope
// isn't used since that can be problematic.
using (var scope = _scopeProvider.CreateScope())
using (_logger.DebugDuration <HealthCheckNotifier>("Health checks executing", "Health checks complete"))
{
var healthCheckConfig = Current.Configs.HealthChecks();
// Don't notify for any checks that are disabled, nor for any disabled
// just for notifications
var disabledCheckIds = healthCheckConfig.NotificationSettings.DisabledChecks
.Select(x => x.Id)
.Union(healthCheckConfig.DisabledChecks
.Select(x => x.Id))
.Distinct()
.ToArray();
var checks = _healthChecks
.Where(x => disabledCheckIds.Contains(x.Id) == false);
var results = new HealthCheckResults(checks);
results.LogResults();
// Send using registered notification methods that are enabled
foreach (var notificationMethod in _notifications.Where(x => x.Enabled))
{
await notificationMethod.SendAsync(results, token);
}
}
return(true); // repeat
}
public override async Task <bool> PerformRunAsync(CancellationToken token)
{
if (_runtimeState.Level != RuntimeLevel.Run)
{
return(true); // repeat...
}
switch (_runtimeState.ServerRole)
{
case ServerRole.Replica:
_logger.Debug <HealthCheckNotifier>("Does not run on replica servers.");
return(true); // DO repeat, server role can change
case ServerRole.Unknown:
_logger.Debug <HealthCheckNotifier>("Does not run on servers with unknown role.");
return(true); // DO repeat, server role can change
}
// ensure we do not run if not main domain, but do NOT lock it
if (_runtimeState.IsMainDom == false)
{
_logger.Debug <HealthCheckNotifier>("Does not run if not MainDom.");
return(false); // do NOT repeat, going down
}
using (_logger.DebugDuration <HealthCheckNotifier>("Health checks executing", "Health checks complete"))
{
var healthCheckConfig = Current.Configs.HealthChecks();
// Don't notify for any checks that are disabled, nor for any disabled
// just for notifications
var disabledCheckIds = healthCheckConfig.NotificationSettings.DisabledChecks
.Select(x => x.Id)
.Union(healthCheckConfig.DisabledChecks
.Select(x => x.Id))
.Distinct()
.ToArray();
var checks = _healthChecks
.Where(x => disabledCheckIds.Contains(x.Id) == false);
var results = new HealthCheckResults(checks);
results.LogResults();
// Send using registered notification methods that are enabled
foreach (var notificationMethod in _notifications.Where(x => x.Enabled))
{
await notificationMethod.SendAsync(results, token);
}
}
return(true); // repeat
}