public RoleInstanceHealthWatchdog(IConfigSection configSection, string configKeyPrefix, IHealthClient healthClient)
{
this.configSection = configSection.Validate("configSection");
this.configKeyPrefix = configKeyPrefix.Validate("configKeyPrefix");
this.healthClient = healthClient.Validate("healthClient");
healthPolicyManager = new DynamicRoleInstanceHealthPolicyManager(configSection, configKeyPrefix);
}
public RoleInstanceHealthWatchdog(WindowsAzureInfrastructureCoordinator coordinator)
{
coordinator.ThrowIfNull("coordinator");
this.coordinator = coordinator;
healthPolicyManager = new DynamicRoleInstanceHealthPolicyManager(coordinator);
}
private HealthState GetRoleInstanceHealth(
IList <RoleInstance> roleInstances,
HealthState inputHealthState,
IRoleInstanceHealthPolicyManager manager)
{
bool enableTracing = this.configSection.ReadConfigValue($"{this.configKeyPrefix}Health.TracingEnabled", false);
bool enableReportHealth = this.configSection.ReadConfigValue($"{this.configKeyPrefix}Health.ReportHealthEnabled", true);
var serviceHealthState = HealthState.Ok;
foreach (RoleInstance roleInstance in roleInstances)
{
var outputHealthState = inputHealthState;
try
{
outputHealthState = manager.Execute(roleInstance, inputHealthState);
}
catch (Exception ex)
{
// no choice but to catch everything since we don't know what to expect from each policy implementation
string text = ex.GetMessage();
Trace.WriteWarning(
RoleInstanceHealthConstants.TraceType,
"Unable to apply health policies on role instance '{0}'. Error(s): {1}",
roleInstance.Id,
text);
outputHealthState = HealthState.Warning;
serviceHealthState = HealthState.Warning;
}
finally
{
AddReport(roleInstance, outputHealthState, enableTracing, enableReportHealth);
}
}
return(serviceHealthState);
}
private HealthState GetRoleInstanceHealth(
IList <RoleInstance> roleInstances,
HealthState inputHealthState,
IRoleInstanceHealthPolicyManager healthPolicyManager)
{
var serviceHealthState = HealthState.Ok;
foreach (RoleInstance roleInstance in roleInstances)
{
var outputHealthState = inputHealthState;
try
{
outputHealthState = healthPolicyManager.Execute(roleInstance, inputHealthState);
}
catch (Exception ex)
{
// no choice but to catch everything since we don't know what to expect from each policy implementation
string text = ex.GetMessage();
Trace.WriteWarning(
HealthConstants.TraceType,
"Unable to apply health policies on role instance '{0}'. Error(s): {1}",
roleInstance.Id,
text);
outputHealthState = HealthState.Warning;
serviceHealthState = HealthState.Warning;
}
finally
{
AddReport(roleInstance, outputHealthState);
}
}
return(serviceHealthState);
}