/// <summary>
/// Sets the Instances property
/// </summary>
/// <param name="instances">The value to set for the Instances property </param>
/// <returns>this instance</returns>
public RunJobFlowRequest WithInstances(JobFlowInstancesConfig instances)
{
this.instances = instances;
return this;
}
/// <summary>
/// Instantiates RunJobFlowRequest with the parameterized properties
/// </summary>
/// <param name="name">The name of the job flow.</param>
/// <param name="instances">A specification of the number and type of Amazon EC2 instances.</param>
public RunJobFlowRequest(string name, JobFlowInstancesConfig instances)
{
_name = name;
_instances = instances;
}
public RunJobFlowRequest WithInstances(JobFlowInstancesConfig instances)
{
this.instances = instances;
return(this);
}
/// <summary>
/// Instantiates RunJobFlowRequest with the parameterized properties
/// </summary>
/// <param name="name">The name of the job flow.</param>
/// <param name="instances"> A specification of the number and type of Amazon EC2 instances on which to run the job flow. </param>
public RunJobFlowRequest(string name, JobFlowInstancesConfig instances)
{
_name = name;
_instances = instances;
}
public override ProvisionAddOnResult Provision(AddonProvisionRequest request)
{
var provisionResult = new ProvisionAddOnResult("") { IsSuccess = true };
AddonManifest manifest = request.Manifest;
string developerOptions = request.DeveloperOptions;
try
{
IAmazonElasticMapReduce client;
EMRDeveloperOptions devOptions;
var parseOptionsResult = ParseDevOptions(developerOptions, out devOptions);
if (!parseOptionsResult.IsSuccess)
{
provisionResult.EndUserMessage = parseOptionsResult.EndUserMessage;
return provisionResult;
}
var establishClientResult = EstablishClient(manifest, EMRDeveloperOptions.Parse(developerOptions), out client);
if (!establishClientResult.IsSuccess)
{
provisionResult.EndUserMessage = establishClientResult.EndUserMessage;
return provisionResult;
}
var stepFactory = new StepFactory();
StepConfig enabledebugging = null;
if (devOptions.EnableDebugging)
{
enabledebugging = new StepConfig
{
Name = "Enable debugging",
ActionOnFailure = "TERMINATE_JOB_FLOW",
HadoopJarStep = stepFactory.NewEnableDebuggingStep()
};
}
var installHive = new StepConfig
{
Name = "Install Hive",
ActionOnFailure = "TERMINATE_JOB_FLOW",
HadoopJarStep = stepFactory.NewInstallHiveStep()
};
var instanceConfig = new JobFlowInstancesConfig
{
Ec2KeyName = devOptions.Ec2KeyName,
HadoopVersion = "0.20",
InstanceCount = devOptions.InstanceCount,
// this is important. the EMR job flow must be kept alive for the application to see it during provisioning
KeepJobFlowAliveWhenNoSteps = true,
MasterInstanceType = devOptions.MasterInstanceType,
SlaveInstanceType = devOptions.SlaveInstanceType
};
var _request = new RunJobFlowRequest
{
Name = devOptions.JobFlowName,
Steps = { enabledebugging, installHive },
// revisit this one in ne
LogUri = "s3://myawsbucket",
Instances = instanceConfig
};
// if debugging is enabled, add to top of the list of steps.
if (devOptions.EnableDebugging)
{
_request.Steps.Insert(0, enabledebugging);
}
var result = client.RunJobFlow(_request);
// wait for JobFlowID to come back.
while (result.JobFlowId == null)
{
Thread.Sleep(1000);
}
provisionResult.IsSuccess = true;
provisionResult.ConnectionData = string.Format(result.JobFlowId);
}
catch (Exception e)
{
provisionResult.EndUserMessage = e.Message;
}
return provisionResult;
}
