FabricClient.HealthClient.GetClusterHealthAsync Method
Definition
Important
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Overloads
| GetClusterHealthAsync(ClusterHealthQueryDescription, TimeSpan, CancellationToken) |
Asynchronously gets the health of a Service Fabric cluster by using a query description, a timeout and cancellation token. |
| GetClusterHealthAsync(TimeSpan, CancellationToken) |
Asynchronously gets the health of a Service Fabric cluster by using the specified timeout and cancellation token. |
| GetClusterHealthAsync(ClusterHealthPolicy, TimeSpan, CancellationToken) |
Asynchronously gets the health of a Service Fabric cluster by using the specified health policy, timeout and cancellation token. |
| GetClusterHealthAsync(ClusterHealthQueryDescription) |
Asynchronously gets the health of a Service Fabric cluster by using a query description. |
| GetClusterHealthAsync() |
Asynchronously gets the health of a Service Fabric cluster. |
| GetClusterHealthAsync(ClusterHealthPolicy) |
Asynchronously gets the health of a Service Fabric cluster, evaluating it using the specified policy. |
GetClusterHealthAsync(ClusterHealthQueryDescription, TimeSpan, CancellationToken)
Asynchronously gets the health of a Service Fabric cluster by using a query description, a timeout and cancellation token.
public System.Threading.Tasks.Task<System.Fabric.Health.ClusterHealth> GetClusterHealthAsync (System.Fabric.Description.ClusterHealthQueryDescription queryDescription, TimeSpan timeout, System.Threading.CancellationToken cancellationToken);member this.GetClusterHealthAsync : System.Fabric.Description.ClusterHealthQueryDescription * TimeSpan * System.Threading.CancellationToken -> System.Threading.Tasks.Task<System.Fabric.Health.ClusterHealth>Public Function GetClusterHealthAsync (queryDescription As ClusterHealthQueryDescription, timeout As TimeSpan, cancellationToken As CancellationToken) As Task(Of ClusterHealth)Parameters
- queryDescription
- ClusterHealthQueryDescription
The query description that defined query parameters like health policies, filters etc.
- timeout
- TimeSpan
The maximum amount of time Service Fabric will allow this operation to continue before returning a TimeoutException.
- cancellationToken
- CancellationToken
The optional cancellation token that the operation is observing. It can be used to send a notification that the operation should be canceled. Note that cancellation is advisory and that the operation may still be completed even if it is canceled.
Returns
The health of a Service Fabric cluster.
Exceptions
The FabricClient object is in a closed state. Dispose of the FabricClient object you are using and instantiate a new FabricClient object.
Returned when a null reference is passed to a method that does not accept it as a valid argument.
Caused by one of the following:
E_INVALIDARG is returned when one or more arguments are not valid.
Caused by one of the following:
OperationTimedOut is returned when the operation takes more than the user provided timeout to complete.
Caused by one of the following:
CommunicationError is returned when a communication error caused the operation to fail.
Caused by one of the following:
ServiceTooBusy is returned when the service is too busy to process the operation.
Caused by one of the following:
E_ACCESSDENIED is returned when the access check has failed for this operation.
Applies to
GetClusterHealthAsync(TimeSpan, CancellationToken)
Asynchronously gets the health of a Service Fabric cluster by using the specified timeout and cancellation token.
public System.Threading.Tasks.Task<System.Fabric.Health.ClusterHealth> GetClusterHealthAsync (TimeSpan timeout, System.Threading.CancellationToken cancellationToken);member this.GetClusterHealthAsync : TimeSpan * System.Threading.CancellationToken -> System.Threading.Tasks.Task<System.Fabric.Health.ClusterHealth>Public Function GetClusterHealthAsync (timeout As TimeSpan, cancellationToken As CancellationToken) As Task(Of ClusterHealth)Parameters
- timeout
- TimeSpan
The maximum amount of time Service Fabric will allow this operation to continue before returning a TimeoutException.
- cancellationToken
- CancellationToken
The optional cancellation token that the operation is observing. It can be used to send a notification that the operation should be canceled. Note that cancellation is advisory and that the operation may still be completed even if it is canceled.
Returns
The health of a Service Fabric cluster.
Exceptions
The FabricClient object is in a closed state. Dispose of the FabricClient object you are using and instantiate a new FabricClient object.
Returned when a null reference is passed to a method that does not accept it as a valid argument.
Caused by one of the following:
E_INVALIDARG is returned when one or more arguments are not valid.
Caused by one of the following:
OperationTimedOut is returned when the operation takes more than the user provided timeout to complete.
Caused by one of the following:
CommunicationError is returned when a communication error caused the operation to fail.
Caused by one of the following:
ServiceTooBusy is returned when the service is too busy to process the operation.
Caused by one of the following:
E_ACCESSDENIED is returned when the access check has failed for this operation.
Applies to
GetClusterHealthAsync(ClusterHealthPolicy, TimeSpan, CancellationToken)
Asynchronously gets the health of a Service Fabric cluster by using the specified health policy, timeout and cancellation token.
public System.Threading.Tasks.Task<System.Fabric.Health.ClusterHealth> GetClusterHealthAsync (System.Fabric.Health.ClusterHealthPolicy healthPolicy, TimeSpan timeout, System.Threading.CancellationToken cancellationToken);member this.GetClusterHealthAsync : System.Fabric.Health.ClusterHealthPolicy * TimeSpan * System.Threading.CancellationToken -> System.Threading.Tasks.Task<System.Fabric.Health.ClusterHealth>Public Function GetClusterHealthAsync (healthPolicy As ClusterHealthPolicy, timeout As TimeSpan, cancellationToken As CancellationToken) As Task(Of ClusterHealth)Parameters
- healthPolicy
- ClusterHealthPolicy
The cluster health policy used to evaluate cluster health.
- timeout
- TimeSpan
The maximum amount of time Service Fabric will allow this operation to continue before returning a TimeoutException.
- cancellationToken
- CancellationToken
The optional cancellation token that the operation is observing. It can be used to send a notification that the operation should be canceled. Note that cancellation is advisory and that the operation may still be completed even if it is canceled.
Returns
The health of a Service Fabric cluster.
Exceptions
The FabricClient object is in a closed state. Dispose of the FabricClient object you are using and instantiate a new FabricClient object.
Returned when a null reference is passed to a method that does not accept it as a valid argument.
Caused by one of the following:
E_INVALIDARG is returned when one or more arguments are not valid.
Caused by one of the following:
OperationTimedOut is returned when the operation takes more than the user provided timeout to complete.
Caused by one of the following:
CommunicationError is returned when a communication error caused the operation to fail.
Caused by one of the following:
ServiceTooBusy is returned when the service is too busy to process the operation.
Caused by one of the following:
E_ACCESSDENIED is returned when the access check has failed for this operation.
Applies to
GetClusterHealthAsync(ClusterHealthQueryDescription)
Asynchronously gets the health of a Service Fabric cluster by using a query description.
public System.Threading.Tasks.Task<System.Fabric.Health.ClusterHealth> GetClusterHealthAsync (System.Fabric.Description.ClusterHealthQueryDescription queryDescription);member this.GetClusterHealthAsync : System.Fabric.Description.ClusterHealthQueryDescription -> System.Threading.Tasks.Task<System.Fabric.Health.ClusterHealth>Public Function GetClusterHealthAsync (queryDescription As ClusterHealthQueryDescription) As Task(Of ClusterHealth)Parameters
- queryDescription
- ClusterHealthQueryDescription
The query description that defines query parameters like health policies, filters etc.
Returns
The health of a Service Fabric cluster.
Exceptions
The FabricClient object is in a closed state. Dispose of the FabricClient object you are using and instantiate a new FabricClient object.
Returned when a null reference is passed to a method that does not accept it as a valid argument.
Caused by one of the following:
E_INVALIDARG is returned when one or more arguments are not valid.
Caused by one of the following:
OperationTimedOut is returned when the operation takes more than the specified time to complete.
Caused by one of the following:
CommunicationError is returned when a communication error caused the operation to fail.
Caused by one of the following:
ServiceTooBusy is returned when the service is too busy to process the operation.
Caused by one of the following:
E_ACCESSDENIED is returned when the access check has failed for this operation.
Applies to
GetClusterHealthAsync()
Asynchronously gets the health of a Service Fabric cluster.
public System.Threading.Tasks.Task<System.Fabric.Health.ClusterHealth> GetClusterHealthAsync ();member this.GetClusterHealthAsync : unit -> System.Threading.Tasks.Task<System.Fabric.Health.ClusterHealth>Public Function GetClusterHealthAsync () As Task(Of ClusterHealth)Returns
The health of a Service Fabric cluster.
Exceptions
The FabricClient object is in a closed state. Dispose of the FabricClient object you are using and instantiate a new FabricClient object.
Returned when a null reference is passed to a method that does not accept it as a valid argument.
Caused by one of the following:
E_INVALIDARG is returned when one or more arguments are not valid.
Caused by one of the following:
OperationTimedOut is returned when the operation takes more than the specified time to complete.
Caused by one of the following:
CommunicationError is returned when a communication error caused the operation to fail.
Caused by one of the following:
ServiceTooBusy is returned when the service is too busy to process the operation.
Caused by one of the following:
E_ACCESSDENIED is returned when the access check has failed for this operation.
Remarks
The following example gets the health of the cluster.
public static bool GetClusterHealth(string clusterConnection)
{
ClusterHealth clusterHealth;
// Connect to the cluster.
FabricClient fabricClient = new FabricClient(clusterConnection);
// Get the cluster health.
try
{
clusterHealth = fabricClient.HealthManager.GetClusterHealthAsync().Result;
}
catch (Exception e)
{
Console.WriteLine("Error: " + e.Message);
if (e.InnerException != null)
Console.WriteLine(" Inner Exception: " + e.InnerException.Message);
return false;
}
// Display the cluster health state.
Console.WriteLine("Cluster Health:");
Console.WriteLine(" Aggregated Health State: " + clusterHealth.AggregatedHealthState);
Console.WriteLine();
// Display the application health states on the cluster.
Console.WriteLine(" Application Health States:");
IList<ApplicationHealthState> applicationHealthStateList = clusterHealth.ApplicationHealthStates;
foreach(ApplicationHealthState applicationHealthState in applicationHealthStateList)
{
Console.WriteLine(" Application {0}: {1}", applicationHealthState.ApplicationName, applicationHealthState.AggregatedHealthState);
}
// Display Node Health States on the cluster.
Console.WriteLine(" Node Health States:");
IList<NodeHealthState> nodeHealthStateList = clusterHealth.NodeHealthStates;
foreach (NodeHealthState nodeHealthState in nodeHealthStateList)
{
Console.WriteLine(" Node Name: " + nodeHealthState.NodeName);
Console.WriteLine(" Aggregated Health State: " + nodeHealthState.AggregatedHealthState);
}
// Display Health Events.
Console.WriteLine(" Health Events:");
IList<HealthEvent> healthEventList = clusterHealth.HealthEvents;
foreach(HealthEvent healthEvent in healthEventList)
{
Console.WriteLine(" Health Event:");
Console.WriteLine(" Last Modified: " + healthEvent.LastModifiedUtcTimestamp);
Console.WriteLine(" Source UTC Timestamp: " + healthEvent.SourceUtcTimestamp);
Console.WriteLine(" Is Expired: " + healthEvent.IsExpired);
Console.WriteLine(" Health Information:");
Console.WriteLine(" Description: " + healthEvent.HealthInformation.Description);
Console.WriteLine(" Source ID: " + healthEvent.HealthInformation.SourceId);
Console.WriteLine(" Health State: " + healthEvent.HealthInformation.HealthState);
Console.WriteLine(" Property: " + healthEvent.HealthInformation.Property);
Console.WriteLine(" Remove When Expired: " + healthEvent.HealthInformation.RemoveWhenExpired);
Console.WriteLine(" Sequence Number: " + healthEvent.HealthInformation.SequenceNumber);
Console.WriteLine(" Time to Live: " + healthEvent.HealthInformation.TimeToLive);
}
Console.WriteLine(" Unhealthy Evaluations:");
IList<HealthEvaluation> healthEvaluationList = clusterHealth.UnhealthyEvaluations;
foreach(HealthEvaluation healthEvaluation in healthEvaluationList)
{
Console.WriteLine(" Kind: " + healthEvaluation.Kind);
Console.WriteLine(" Aggregated Health State: " + healthEvaluation.AggregatedHealthState);
Console.WriteLine(" Description: " + healthEvaluation.Description);
}
return true;
}
Applies to
GetClusterHealthAsync(ClusterHealthPolicy)
Asynchronously gets the health of a Service Fabric cluster, evaluating it using the specified policy.
public System.Threading.Tasks.Task<System.Fabric.Health.ClusterHealth> GetClusterHealthAsync (System.Fabric.Health.ClusterHealthPolicy healthPolicy);member this.GetClusterHealthAsync : System.Fabric.Health.ClusterHealthPolicy -> System.Threading.Tasks.Task<System.Fabric.Health.ClusterHealth>Public Function GetClusterHealthAsync (healthPolicy As ClusterHealthPolicy) As Task(Of ClusterHealth)Parameters
- healthPolicy
- ClusterHealthPolicy
The cluster health policy used to evaluate cluster health.
Returns
The health of a Service Fabric cluster.
Exceptions
The FabricClient object is in a closed state. Dispose of the FabricClient object you are using and instantiate a new FabricClient object.
Returned when a null reference is passed to a method that does not accept it as a valid argument.
Caused by one of the following:
E_INVALIDARG is returned when one or more arguments are not valid.
Caused by one of the following:
OperationTimedOut is returned when the operation takes more than the specified time to complete.
Caused by one of the following:
CommunicationError is returned when a communication error caused the operation to fail.
Caused by one of the following:
ServiceTooBusy is returned when the service is too busy to process the operation.
Caused by one of the following:
E_ACCESSDENIED is returned when the access check has failed for this operation.
Applies to
Azure SDK for .NET