/// <summary>
/// Reports health of all the Azure roleinstances corresponding to the Windows Fabric nodes
/// to the Windows Fabric health store.
/// </summary>
/// <param name="validityPeriod">Serves as an indication to the watchdog as to how long the reported health is valid for.</param>
public void ReportHealth(TimeSpan validityPeriod)
{
// start with an initial assumption that health is okay.
const HealthState InputHealthState = HealthState.Ok;
try
{
IList <RoleInstance> roleInstances = GetRoleInstances();
HealthState serviceHealthState = roleInstances == null
? HealthState.Warning
: GetRoleInstanceHealth(roleInstances, InputHealthState, healthPolicyManager);
string description = GetServiceHealthDescription(roleInstances, serviceHealthState);
// Specify a time to live. In case infrastructure service is down, the health report shows up as warning (or error)
var hi = new HealthInformation(
HealthConstants.HealthReportSourceId,
HealthConstants.HealthReportReplicaHealthWatchdogStatus,
serviceHealthState)
{
Description = description,
TimeToLive = validityPeriod != TimeSpan.Zero ? validityPeriod : TimeSpan.MaxValue,
RemoveWhenExpired = true
};
// Construct this name ourselves since there is currently a bug where the service Uri which
// could have been passed in all the way from ServiceFactory's CreateReplica is an empty string.
var serviceUri = new Uri(ServiceNamePrefix + coordinator.ConfigSectionName);
// We'll roll up the health to the service level bypassing the replica and partition health.
// Since only 1 replica is actively doing something and there is only a single partition of
// this service, rolling up health higher is preferred since it can catch the user's eyes a
// little bit faster.
var healthReport = new ServiceHealthReport(serviceUri, hi);
healthClient.ReportHealth(healthReport);
}
catch (Exception ex)
{
Trace.WriteWarning(
HealthConstants.TraceType,
"Unable to report health from role instance health watchdog. Error(s): {0}",
ex.GetMessage());
}
}
/// <inheritdoc/>
public void ReportHealth(HealthReport healthReport, HealthReportSendOptions sendOptions)
{
_healthClient.ReportHealth(healthReport, sendOptions);
}
public void ReportHealth(HealthReport healthReport)
{
healthReport.Validate("healthReport");
healthClient.ReportHealth(healthReport);
}