public async Task ProcessStartClusterConfigurationUpgradeAsync(ConfigurationUpgradeDescription configUpgradeDesc, TimeSpan timeout, CancellationToken cancellationToken)
{
/* The cancellation token passed in this API call is not used (by design). This token corresponds to the client side call.
* The global this.cancellationToken is initialised in RunAsync() and is honored in every API call. */
UpgradeOrchestrationTrace.TraceSource.WriteInfo(TraceType, "Entering ProcessStartUpgradeAsync.");
try
{
UpgradeOrchestrationTrace.TraceSource.WriteInfo(TraceType, "Deserializing input json config string.");
StandAloneInstallerJsonModelBase targetJsonConfig = StandAloneInstallerJsonModelBase.GetJsonConfigFromString(configUpgradeDesc.ClusterConfiguration);
if (targetJsonConfig == null)
{
throw new ArgumentException("The input cluster configuration is not in a valid json format or supported apiVersion.");
}
UpgradeOrchestrationTrace.TraceSource.WriteInfo(TraceType, "Retrieve current cluster resource from StoreManager.");
StandAloneCluster cluster = await this.storeManager.GetClusterResourceAsync(
Constants.ClusterReliableDictionaryKey, this.cancellationToken).ConfigureAwait(false);
bool isInDataLossState = await DatalossHelper.IsInDatalossStateAsync(this.cancellationToken).ConfigureAwait(false);
if (!isInDataLossState)
{
if (cluster == null || cluster.Current == null)
{
UpgradeOrchestrationTrace.TraceSource.WriteWarning(TraceType, "Persisted cluster resource is not ready: {0}", cluster == null ? "null" : "current = null");
throw new FabricException("UpgradeOrchestrationService is not ready.");
}
UpgradeOrchestrationTrace.TraceSource.WriteInfo(TraceType, "Setting target config and topology based on new input json config.");
if (cluster.Pending != null && !this.IsInterruptibleAsync(cluster.Pending).Result)
{
throw new FabricException(string.Format("Cluster configuration upgrade of type {0} is already in progress and cannot be interrupted.", cluster.Pending.GetType().Name));
}
StandaloneSettingsValidator validator = new StandaloneSettingsValidator(targetJsonConfig);
await UpgradeOrchestrationMessageProcessor.ValidateModel(targetJsonConfig, validator, cluster, true).ConfigureAwait(false);
var removedNodes = validator.GetRemovedNodes(cluster.Topology);
var addedNodes = validator.GetAddedNodes(cluster.Topology);
if (addedNodes.Any() && StandaloneUtility.CheckFabricRunningAsGMSA(cluster.Current.CSMConfig))
{
/* Need to resolve assembly so that FabricDeployer can load the right binaries from FabricCodePath since not all binaries required by FabricDeployer are present in UOS.Current folder.*/
AppDomain.CurrentDomain.AssemblyResolve += new ResolveEventHandler(this.LoadFromFabricCodePath);
try
{
await this.PerformAddNodeOperationGMSAAsync(addedNodes, this.fabricClient, validator.ClusterProperties.NodeTypes).ConfigureAwait(false);
}
catch (AggregateException ex)
{
UpgradeOrchestrationTrace.TraceSource.WriteError(TraceType, "Adding nodes for GMSA scenario failed with exception: {0}", ex);
throw;
}
finally
{
AppDomain.CurrentDomain.AssemblyResolve -= new ResolveEventHandler(this.LoadFromFabricCodePath);
}
}
if (addedNodes.Any())
{
cluster.TargetNodeConfig = GetTargetNodeConfigAddNode(validator.Topology, cluster.Current.NodeConfig.Version);
}
if (removedNodes.Any())
{
cluster.TargetNodeConfig = GetTargetNodeConfigRemoveNode(cluster.Topology, removedNodes, cluster.Current.NodeConfig.Version);
}
else
{
cluster.Topology = validator.Topology;
}
cluster.TargetCsmConfig = validator.ClusterProperties;
// Cluster is updated above so persist it.
await this.storeManager.PersistClusterResourceAsync(Constants.ClusterReliableDictionaryKey, cluster, cancellationToken).ConfigureAwait(false);
await this.UpdatePersistedCodeUpgradePackage(validator).ConfigureAwait(false);
UpgradeOrchestrationTrace.TraceSource.WriteInfo(TraceType, "Invoking Orchestrator");
await this.orchestrator.StartUpgradeAsync(cluster, this.cancellationToken, configUpgradeDesc).ContinueWith(t =>
{
if (t.Exception != null)
{
UpgradeOrchestrationTrace.TraceSource.WriteWarning(TraceType, "Orchestrator completed with status: {0} exception: {1}", t.Status, t.Exception);
}
else
{
UpgradeOrchestrationTrace.TraceSource.WriteInfo(TraceType, "Orchestrator completed with status: {0}", t.Status);
}
});
}
else
{
StandaloneSettingsValidator validator = new StandaloneSettingsValidator(targetJsonConfig);
await UpgradeOrchestrationMessageProcessor.ValidateModel(targetJsonConfig, validator, cluster, false).ConfigureAwait(false);
cluster = FabricUpgradeOrchestrationService.ConstructClusterFromJson(targetJsonConfig, FabricNativeConfigStore.FabricGetConfigStore());
DatalossHelper.DryRunConfigUpgrade(cluster);
await this.storeManager.PersistClusterResourceAsync(Constants.ClusterReliableDictionaryKey, cluster, this.cancellationToken);
await DatalossHelper.UpdateHeathStateAsync(isHealthy : true).ConfigureAwait(false);
}
}
catch (Exception e)
{
UpgradeOrchestrationTrace.TraceSource.WriteWarning(TraceType, "ProcessStartUpgradeAsync exception: {0}", e);
throw UpgradeOrchestrationMessageProcessor.ConvertToComException(e);
}
UpgradeOrchestrationTrace.TraceSource.WriteInfo(TraceType, "Exiting ProcessStartUpgradeAsync.");
}