private static void AddWork(IBatchClient client)
{
using (IWorkItemManager wm = client.OpenWorkItemManager())
{
//The toolbox contains some helper mechanisms to ease submission and monitoring of tasks.
IToolbox toolbox = client.OpenToolbox();
// to submit a batch of tasks, the TaskSubmissionHelper is useful.
ITaskSubmissionHelper taskSubmissionHelper = toolbox.CreateTaskSubmissionHelper(wm, Program.PoolName);
// workitem is uniquely identified by its name so we will use a timestamp as suffix
taskSubmissionHelper.WorkItemName = Environment.GetEnvironmentVariable("USERNAME") + DateTime.Now.ToString("yyyyMMdd-HHmmss");
Console.WriteLine("Creating work item: {0}", taskSubmissionHelper.WorkItemName);
// add 2 quick tasks. Tasks within a job must have unique names
taskSubmissionHelper.AddTask(new CloudTask("task1", "hostname"));
taskSubmissionHelper.AddTask(new CloudTask("task2", "cmd /c dir /s"));
//Commit the tasks to the Batch Service
IJobCommitUnboundArtifacts artifacts = taskSubmissionHelper.Commit() as IJobCommitUnboundArtifacts;
// TaskSubmissionHelper commit artifacts returns the workitem and job name
ICloudJob job = wm.GetJob(artifacts.WorkItemName, artifacts.JobName);
Console.WriteLine("Waiting for all tasks to complete on work item: {0}, Job: {1} ...", artifacts.WorkItemName, artifacts.JobName);
//We use the task state monitor to monitor the state of our tasks -- in this case we will wait for them all to complete.
ITaskStateMonitor taskStateMonitor = toolbox.CreateTaskStateMonitor();
// blocking wait on the list of tasks until all tasks reach completed state
bool timedOut = taskStateMonitor.WaitAll(job.ListTasks(), TaskState.Completed, new TimeSpan(0, 20, 0));
if (timedOut)
{
throw new TimeoutException("Timed out waiting for tasks");
}
// dump task output
foreach (var t in job.ListTasks())
{
Console.WriteLine("Task " + t.Name + " says:\n" + t.GetTaskFile(Constants.StandardOutFileName).ReadAsString());
}
// remember to delete the workitem before exiting
Console.WriteLine("Deleting work item: {0}", artifacts.WorkItemName);
wm.DeleteWorkItem(artifacts.WorkItemName);
}
}
/// <summary>
/// Populates Azure Storage with the required files, and
/// submits the work item to the Azure Batch service.
/// </summary>
public async Task RunAsync()
{
Console.WriteLine("Running with the following settings: ");
Console.WriteLine("----------------------------------------");
Console.WriteLine(this.configurationSettings.ToString());
//Upload resources if required.
if (this.configurationSettings.ShouldUploadResources)
{
Console.WriteLine("Splitting file: {0} into {1} subfiles",
Constants.TextFilePath,
this.configurationSettings.NumberOfMapperTasks);
//Split the text file into the correct number of files for consumption by the mapper tasks.
FileSplitter splitter = new FileSplitter();
List <string> mapperTaskFiles = await splitter.SplitAsync(
Constants.TextFilePath,
this.configurationSettings.NumberOfMapperTasks);
await this.UploadResourcesAsync(mapperTaskFiles);
}
//Generate a SAS for the container.
string containerSasUrl = Helpers.ConstructContainerSas(
this.configurationSettings.StorageAccountName,
this.configurationSettings.StorageAccountKey,
this.configurationSettings.StorageServiceUrl,
this.configurationSettings.BlobContainer);
//Set up the Batch Service credentials used to authenticate with the Batch Service.
BatchCredentials batchCredentials = new BatchCredentials(
this.configurationSettings.BatchAccountName,
this.configurationSettings.BatchAccountKey);
using (IBatchClient batchClient = BatchClient.Connect(this.configurationSettings.BatchServiceUrl, batchCredentials))
{
using (IWorkItemManager workItemManager = batchClient.OpenWorkItemManager())
{
//Create the unbound work item in local memory. An object which exists only in local memory (and not on the Batch Service) is "unbound".
string workItemName = Environment.GetEnvironmentVariable("USERNAME") + DateTime.UtcNow.ToString("yyyyMMdd-HHmmss");
ICloudWorkItem unboundWorkItem = workItemManager.CreateWorkItem(workItemName);
//
// Construct the work item properties in local memory before commiting them to the Batch Service.
//
//Allow enough VMs in the pool to run each mapper task, and 1 extra to run the job manager.
int numberOfPoolVMs = 1 + this.configurationSettings.NumberOfMapperTasks;
//Define the pool specification for the pool which the work item will run on.
IPoolSpecification poolSpecification = new PoolSpecification()
{
TargetDedicated = numberOfPoolVMs,
VMSize = "small",
//You can learn more about os families and versions at:
//http://msdn.microsoft.com/en-us/library/azure/ee924680.aspx
OSFamily = "4",
TargetOSVersion = "*"
};
//Use the auto pool feature of the Batch Service to create a pool when the work item is created.
//This creates a new pool for each work item which is added.
IAutoPoolSpecification autoPoolSpecification = new AutoPoolSpecification()
{
AutoPoolNamePrefix = "TextSearchPool",
KeepAlive = false,
PoolLifeTimeOption = PoolLifeTimeOption.WorkItem,
PoolSpecification = poolSpecification
};
//Define the execution environment for this work item -- it will run on the pool defined by the auto pool specification above.
unboundWorkItem.JobExecutionEnvironment = new JobExecutionEnvironment()
{
AutoPoolSpecification = autoPoolSpecification
};
//Define the job manager for this work item. This job manager will run when any job is created and will submit the tasks for
//the work item. The job manager is the executable which manages the lifetime of the job
//and all tasks which should run for the job. In this case, the job manager submits the mapper and reducer tasks.
string jobManagerCommandLine = string.Format("{0} -JobManagerTask", Constants.TextSearchExe);
List <IResourceFile> jobManagerResourceFiles = Helpers.GetResourceFiles(containerSasUrl, Constants.RequiredExecutableFiles);
const string jobManagerTaskName = "JobManager";
unboundWorkItem.JobSpecification = new JobSpecification()
{
JobManager = new JobManager()
{
ResourceFiles = jobManagerResourceFiles,
CommandLine = jobManagerCommandLine,
//Determines if the job should terminate when the job manager process exits
KillJobOnCompletion = false,
Name = jobManagerTaskName
}
};
try
{
//Commit the unbound work item to the Batch Service.
Console.WriteLine("Adding work item: {0} to the Batch Service.", unboundWorkItem.Name);
await unboundWorkItem.CommitAsync(); //Issues a request to the Batch Service to add the work item which was defined above.
//
// Wait for the job manager task to complete.
//
//An object which is backed by a corresponding Batch Service object is "bound."
ICloudWorkItem boundWorkItem = await workItemManager.GetWorkItemAsync(workItemName);
//Wait for the job to be created automatically by the Batch Service.
string boundJobName = await Helpers.WaitForActiveJobAsync(boundWorkItem);
ICloudTask boundJobManagerTask = await workItemManager.GetTaskAsync(
workItemName,
boundJobName,
jobManagerTaskName);
TimeSpan maxJobCompletionTimeout = TimeSpan.FromMinutes(30);
IToolbox toolbox = batchClient.OpenToolbox();
ITaskStateMonitor monitor = toolbox.CreateTaskStateMonitor();
bool timedOut = await monitor.WaitAllAsync(new List <ICloudTask> {
boundJobManagerTask
}, TaskState.Completed, maxJobCompletionTimeout);
Console.WriteLine("Done waiting for job manager task.");
await boundJobManagerTask.RefreshAsync();
//Check to ensure the job manager task exited successfully.
await Helpers.CheckForTaskSuccessAsync(boundJobManagerTask, dumpStandardOutOnTaskSuccess : true);
if (timedOut)
{
throw new TimeoutException(string.Format("Timed out waiting for job manager task to complete."));
}
}
catch (AggregateException e)
{
e.Handle(
(innerE) =>
{
//We print all the inner exceptions for debugging purposes.
Console.WriteLine(innerE.ToString());
return(false);
});
throw;
}
catch (Exception e)
{
Console.WriteLine("Hit unexpected exception: {0}", e.ToString());
throw;
}
finally
{
//Delete the work item.
//This will delete the auto pool associated with the work item as long as the pool
//keep alive property is set to false.
if (this.configurationSettings.ShouldDeleteWorkItem)
{
Console.WriteLine("Deleting work item {0}", workItemName);
workItemManager.DeleteWorkItem(workItemName);
}
//Note that there were files uploaded to a container specified in the
//configuration file. This container will not be deleted or cleaned up by this sample.
}
}
}
}
/// <summary>
/// Runs the job manager task.
/// </summary>
public async Task RunAsync()
{
Console.WriteLine("JobManager for account: {0}, work item: {1}, job: {2} has started...",
this.accountName,
this.workItemName,
this.jobName);
Console.WriteLine();
Console.WriteLine("JobManager running with the following settings: ");
Console.WriteLine("----------------------------------------");
Console.WriteLine(this.configurationSettings.ToString());
//Set up the Batch Service credentials used to authenticate with the Batch Service.
BatchCredentials batchCredentials = new BatchCredentials(
this.configurationSettings.BatchAccountName,
this.configurationSettings.BatchAccountKey);
using (IBatchClient batchClient = BatchClient.Connect(this.configurationSettings.BatchServiceUrl, batchCredentials))
{
using (IWorkItemManager workItemManager = batchClient.OpenWorkItemManager())
{
IToolbox toolbox = batchClient.OpenToolbox();
//Construct a container SAS to provide the Batch Service access to the files required to
//run the mapper and reducer tasks.
string containerSas = Helpers.ConstructContainerSas(
this.configurationSettings.StorageAccountName,
this.configurationSettings.StorageAccountKey,
this.configurationSettings.StorageServiceUrl,
this.configurationSettings.BlobContainer);
//
// Submit mapper tasks.
//
Console.WriteLine("Submitting {0} mapper tasks.", this.configurationSettings.NumberOfMapperTasks);
//The collection of tasks to add to the Batch Service.
List <ICloudTask> tasksToAdd = new List <ICloudTask>();
for (int i = 0; i < this.configurationSettings.NumberOfMapperTasks; i++)
{
string taskName = Helpers.GetMapperTaskName(i);
string fileBlobName = Helpers.GetSplitFileName(i);
string fileBlobPath = Helpers.ConstructBlobSource(containerSas, fileBlobName);
string commandLine = string.Format("{0} -MapperTask {1}", Constants.TextSearchExe, fileBlobPath);
ICloudTask unboundMapperTask = new CloudTask(taskName, commandLine);
//The set of files (exe's, dll's and configuration files) required to run the mapper task.
IReadOnlyList <string> mapperTaskRequiredFiles = Constants.RequiredExecutableFiles;
List <IResourceFile> mapperTaskResourceFiles = Helpers.GetResourceFiles(containerSas, mapperTaskRequiredFiles);
unboundMapperTask.ResourceFiles = mapperTaskResourceFiles;
tasksToAdd.Add(unboundMapperTask);
}
//Submit the unbound task collection to the Batch Service.
//Use the AddTask method which takes a collection of ICloudTasks for the best performance.
await workItemManager.AddTaskAsync(this.workItemName, this.jobName, tasksToAdd);
//
// Wait for the mapper tasks to complete.
//
Console.WriteLine("Waiting for the mapper tasks to complete...");
//List all the mapper tasks using a name filter.
DetailLevel mapperTaskNameFilter = new ODATADetailLevel()
{
FilterClause = string.Format("startswith(name, '{0}')", Constants.MapperTaskPrefix)
};
List <ICloudTask> tasksToMonitor = workItemManager.ListTasks(
this.workItemName,
this.jobName,
detailLevel: mapperTaskNameFilter).ToList();
//Use the task state monitor to wait for the tasks to complete.
ITaskStateMonitor taskStateMonitor = toolbox.CreateTaskStateMonitor();
bool timedOut = await taskStateMonitor.WaitAllAsync(tasksToMonitor, TaskState.Completed, TimeSpan.FromMinutes(5));
//Get the list of mapper tasks in order to analyze their state and ensure they completed successfully.
IEnumerableAsyncExtended <ICloudTask> asyncEnumerable = workItemManager.ListTasks(
this.workItemName,
this.jobName,
detailLevel: mapperTaskNameFilter);
IAsyncEnumerator <ICloudTask> asyncEnumerator = asyncEnumerable.GetAsyncEnumerator();
//Dump the status of each mapper task.
while (await asyncEnumerator.MoveNextAsync())
{
ICloudTask cloudTask = asyncEnumerator.Current;
Console.WriteLine("Task {0} is in state: {1}", cloudTask.Name, cloudTask.State);
await Helpers.CheckForTaskSuccessAsync(cloudTask, dumpStandardOutOnTaskSuccess : false);
Console.WriteLine();
}
//If not all the tasks reached the desired state within the timeout then the job manager
//cannot continue.
if (timedOut)
{
const string errorMessage = "Mapper tasks did not complete within expected timeout.";
Console.WriteLine(errorMessage);
throw new TimeoutException(errorMessage);
}
//
// Create the reducer task.
//
string reducerTaskCommandLine = string.Format("{0} -ReducerTask", Constants.TextSearchExe);
Console.WriteLine("Adding the reducer task: {0}", Constants.ReducerTaskName);
ICloudTask unboundReducerTask = new CloudTask(Constants.ReducerTaskName, reducerTaskCommandLine);
//The set of files (exe's, dll's and configuration files) required to run the reducer task.
List <IResourceFile> reducerTaskResourceFiles = Helpers.GetResourceFiles(containerSas, Constants.RequiredExecutableFiles);
unboundReducerTask.ResourceFiles = reducerTaskResourceFiles;
//Send the request to the Batch Service to add the reducer task.
await workItemManager.AddTaskAsync(this.workItemName, this.jobName, unboundReducerTask);
//
//Wait for the reducer task to complete.
//
//Get the bound reducer task and monitor it for completion.
ICloudTask boundReducerTask = await workItemManager.GetTaskAsync(this.workItemName, this.jobName, Constants.ReducerTaskName);
timedOut = await taskStateMonitor.WaitAllAsync(new List <ICloudTask> {
boundReducerTask
}, TaskState.Completed, TimeSpan.FromMinutes(2));
//Refresh the reducer task to get the most recent information about it from the Batch Service.
await boundReducerTask.RefreshAsync();
//Dump the reducer tasks exit code and scheduling error for debugging purposes.
await Helpers.CheckForTaskSuccessAsync(boundReducerTask, dumpStandardOutOnTaskSuccess : true);
//Handle the possibilty that the reducer task did not complete in the expected timeout.
if (timedOut)
{
const string errorMessage = "Reducer task did not complete within expected timeout.";
Console.WriteLine("Task {0} is in state: {1}", boundReducerTask.Name, boundReducerTask.State);
Console.WriteLine(errorMessage);
throw new TimeoutException(errorMessage);
}
//The job manager has completed.
Console.WriteLine("JobManager completed successfully.");
}
}
}
private static void AddWork(IBatchClient client)
{
using (var wm = client.OpenWorkItemManager())
{
//The toolbox contains some helper mechanisms to ease submission and monitoring of tasks.
var toolbox = client.OpenToolbox();
//Create a work item
var workItemName = Environment.GetEnvironmentVariable("USERNAME") +
DateTime.Now.ToString("yyyyMMdd-HHmmss");
Console.WriteLine("Creating work item {0}", workItemName);
var cloudWorkItem = wm.CreateWorkItem(workItemName);
cloudWorkItem.JobExecutionEnvironment = new JobExecutionEnvironment {
PoolName = PoolName
};
cloudWorkItem.JobSpecification = new JobSpecification()
{
JobPreparationTask = new JobPreparationTask()
{
Name = "jobprep",
CommandLine = "cmd /c ping 127.0.0.1"
}
};
cloudWorkItem.Commit();
//Wait for an active job
var maxJobCreationTimeout = TimeSpan.FromSeconds(90);
var jobCreationStartTime = DateTime.Now;
var jobCreationTimeoutTime = jobCreationStartTime.Add(maxJobCreationTimeout);
cloudWorkItem = wm.GetWorkItem(workItemName);
Console.WriteLine("Waiting for a job to become active...");
while (cloudWorkItem.ExecutionInformation?.RecentJob == null)
{
cloudWorkItem.Refresh();
if (DateTime.Now > jobCreationTimeoutTime)
{
throw new TimeoutException("Timed out waiting for job.");
}
Thread.Sleep(TimeSpan.FromSeconds(5));
}
var jobName = cloudWorkItem.ExecutionInformation.RecentJob.Name;
Console.WriteLine("Found job {0}. Adding task objects...", jobName);
var job = wm.GetJob(workItemName, jobName);
job.AddTask(new CloudTask("task1", "hostname"));
job.AddTask(new CloudTask("task2", "cmd /c dir /s ..\\.."));
var haveEnoughSuccessJobPrepTask = WaitAllJobPrepTask(
client,
PoolName,
workItemName,
jobName,
(succ, fail) => succ >= 2 || fail > 0, // stop indicator
(succ, fail) => succ >= 2, // success indicator
TimeSpan.FromMinutes(5), TimeSpan.FromSeconds(5), 10
);
if (haveEnoughSuccessJobPrepTask) // got enough nodes, continue
{
//We use the task state monitor to monitor the state of our tasks -- in this case we will wait for them all to complete.
var taskStateMonitor = toolbox.CreateTaskStateMonitor();
// blocking wait on the list of tasks until all tasks reach completed state
var timedOut = taskStateMonitor.WaitAll(job.ListTasks(), TaskState.Completed,
TimeSpan.FromMinutes(20));
if (timedOut)
{
throw new TimeoutException("Timed out waiting for tasks");
}
// dump task output
foreach (var t in job.ListTasks())
{
Console.WriteLine("Task " + t.Name + " output:\n" +
t.GetTaskFile(Constants.StandardOutFileName).ReadAsString());
}
}
else // too much failure, abort
{
Console.WriteLine("too much failure, abort.");
}
// remember to delete the workitem before exiting
Console.WriteLine("Deleting work item: {0}", workItemName);
wm.DeleteWorkItem(workItemName);
}
}
/// <summary>
/// Submit a work item with tasks which have dependant files.
/// The files are automatically uploaded to Azure Storage using the FileStaging feature of the Azure.Batch client library.
/// </summary>
/// <param name="client"></param>
private static void AddWorkWithFileStaging(IBatchClient client)
{
using (IWorkItemManager wm = client.OpenWorkItemManager())
{
IToolbox toolbox = client.OpenToolbox();
ITaskSubmissionHelper taskSubmissionHelper = toolbox.CreateTaskSubmissionHelper(wm, Program.PoolName);
taskSubmissionHelper.WorkItemName = Environment.GetEnvironmentVariable("USERNAME") + DateTime.Now.ToString("yyyyMMdd-HHmmss");
Console.WriteLine("Creating work item: {0}", taskSubmissionHelper.WorkItemName);
ICloudTask taskToAdd1 = new CloudTask("task_with_file1", "cmd /c type *.txt");
ICloudTask taskToAdd2 = new CloudTask("task_with_file2", "cmd /c dir /s");
//Set up a collection of files to be staged -- these files will be uploaded to Azure Storage
//when the tasks are submitted to the Azure Batch service.
taskToAdd1.FilesToStage = new List <IFileStagingProvider>();
taskToAdd2.FilesToStage = new List <IFileStagingProvider>();
// generate a local file in temp directory
Process cur = Process.GetCurrentProcess();
string path = Path.Combine(Environment.GetEnvironmentVariable("TEMP"), cur.Id.ToString() + ".txt");
System.IO.File.WriteAllText(path, "hello from " + cur.Id.ToString());
// add file as task dependency so it'll be uploaded to storage before task
// is submitted and download onto the VM before task starts execution
FileToStage file = new FileToStage(path, new StagingStorageAccount(Program.StorageAccount, Program.StorageKey, Program.StorageBlobEndpoint));
taskToAdd1.FilesToStage.Add(file);
taskToAdd2.FilesToStage.Add(file); // filetostage object can be reused
taskSubmissionHelper.AddTask(taskToAdd1);
taskSubmissionHelper.AddTask(taskToAdd2);
IJobCommitUnboundArtifacts artifacts = null;
bool errors = false;
try
{
//Stage the files to Azure Storage and add the tasks to Azure Batch.
artifacts = taskSubmissionHelper.Commit() as IJobCommitUnboundArtifacts;
}
catch (AggregateException ae)
{
errors = true;
// Go through all exceptions and dump useful information
ae.Handle((x) =>
{
if (x is BatchException)
{
BatchException be = x as BatchException;
if (null != be.RequestInformation && null != be.RequestInformation.AzureError)
{
// Write the server side error information
Console.Error.WriteLine(be.RequestInformation.AzureError.Code);
Console.Error.WriteLine(be.RequestInformation.AzureError.Message.Value);
if (null != be.RequestInformation.AzureError.Values)
{
foreach (var v in be.RequestInformation.AzureError.Values)
{
Console.Error.WriteLine(v.Key + " : " + v.Value);
}
}
}
}
else
{
Console.WriteLine(x);
}
// Indicate that the error has been handled
return(true);
});
}
// if there is no exception, wait for job response
if (!errors)
{
List <ICloudTask> tasksToMonitorForCompletion = wm.ListTasks(artifacts.WorkItemName, artifacts.JobName).ToList();
Console.WriteLine("Waiting for all tasks to complete on work item: {0}, Job: {1} ...", artifacts.WorkItemName, artifacts.JobName);
client.OpenToolbox().CreateTaskStateMonitor().WaitAll(tasksToMonitorForCompletion, TaskState.Completed, TimeSpan.FromMinutes(30));
foreach (ICloudTask task in wm.ListTasks(artifacts.WorkItemName, artifacts.JobName))
{
Console.WriteLine("Task " + task.Name + " says:\n" + task.GetTaskFile(Constants.StandardOutFileName).ReadAsString());
Console.WriteLine(task.GetTaskFile(Constants.StandardErrorFileName).ReadAsString());
}
}
Console.WriteLine("Deleting work item: {0}", artifacts.WorkItemName);
wm.DeleteWorkItem(artifacts.WorkItemName); //Don't forget to delete the work item before you exit
}
}
public static void JobMain(string[] args)
{
//Load the configuration
TopNWordsConfiguration configuration = TopNWordsConfiguration.LoadConfigurationFromAppConfig();
StagingStorageAccount stagingStorageAccount = new StagingStorageAccount(
configuration.StorageAccountName,
configuration.StorageAccountKey,
configuration.StorageAccountBlobEndpoint);
IBatchClient client = BatchClient.Connect(configuration.BatchServiceUrl, new BatchCredentials(configuration.BatchAccountName, configuration.BatchAccountKey));
string stagingContainer = null;
//Create a pool (if user hasn't provided one)
if (configuration.ShouldCreatePool)
{
using (IPoolManager pm = client.OpenPoolManager())
{
//OSFamily 4 == OS 2012 R2
//You can learn more about os families and versions at:
//http://msdn.microsoft.com/en-us/library/azure/ee924680.aspx
ICloudPool pool = pm.CreatePool(configuration.PoolName, targetDedicated: configuration.PoolSize, osFamily: "4", vmSize: "small");
Console.WriteLine("Adding pool {0}", configuration.PoolName);
pool.Commit();
}
}
try
{
using (IWorkItemManager wm = client.OpenWorkItemManager())
{
IToolbox toolbox = client.OpenToolbox();
//Use the TaskSubmissionHelper to help us create a WorkItem and add tasks to it.
ITaskSubmissionHelper taskSubmissionHelper = toolbox.CreateTaskSubmissionHelper(wm, configuration.PoolName);
taskSubmissionHelper.WorkItemName = configuration.WorkItemName;
FileToStage topNWordExe = new FileToStage(TopNWordsExeName, stagingStorageAccount);
FileToStage storageDll = new FileToStage(StorageClientDllName, stagingStorageAccount);
string bookFileUri = UploadBookFileToCloudBlob(configuration, configuration.BookFileName);
Console.WriteLine("{0} uploaded to cloud", configuration.BookFileName);
for (int i = 1; i <= configuration.NumberOfTasks; i++)
{
ICloudTask task = new CloudTask("task_no_" + i, String.Format("{0} --Task {1} {2} {3} {4}",
TopNWordsExeName,
bookFileUri,
configuration.NumberOfTopWords,
configuration.StorageAccountName,
configuration.StorageAccountKey));
//This is the list of files to stage to a container -- for each TaskSubmissionHelper one container is created and
//files all resolve to Azure Blobs by their name (so two tasks with the same named file will create just 1 blob in
//the TaskSubmissionHelper's container).
task.FilesToStage = new List <IFileStagingProvider>
{
topNWordExe,
storageDll
};
taskSubmissionHelper.AddTask(task);
}
//Commit all the tasks to the Batch Service.
IJobCommitUnboundArtifacts artifacts = taskSubmissionHelper.Commit() as IJobCommitUnboundArtifacts;
foreach (var fileStagingArtifact in artifacts.FileStagingArtifacts)
{
SequentialFileStagingArtifact stagingArtifact = fileStagingArtifact.Value as SequentialFileStagingArtifact;
if (stagingArtifact != null)
{
stagingContainer = stagingArtifact.BlobContainerCreated;
Console.WriteLine("Uploaded files to container: {0} -- you will be charged for their storage unless you delete them.",
stagingArtifact.BlobContainerCreated);
}
}
//Get the job to monitor status.
ICloudJob job = wm.GetJob(artifacts.WorkItemName, artifacts.JobName);
Console.Write("Waiting for tasks to complete ...");
// Wait 1 minute for all tasks to reach the completed state
client.OpenToolbox().CreateTaskStateMonitor().WaitAll(job.ListTasks(), TaskState.Completed, TimeSpan.FromMinutes(20));
Console.WriteLine("Done.");
foreach (ICloudTask task in job.ListTasks())
{
Console.WriteLine("Task " + task.Name + " says:\n" + task.GetTaskFile(Constants.StandardOutFileName).ReadAsString());
Console.WriteLine(task.GetTaskFile(Constants.StandardErrorFileName).ReadAsString());
}
}
}
finally
{
//Delete the pool that we created
if (configuration.ShouldCreatePool)
{
using (IPoolManager pm = client.OpenPoolManager())
{
Console.WriteLine("Deleting pool: {0}", configuration.PoolName);
pm.DeletePool(configuration.PoolName);
}
}
//Delete the workitem that we created
if (configuration.ShouldDeleteWorkItem)
{
using (IWorkItemManager wm = client.OpenWorkItemManager())
{
Console.WriteLine("Deleting work item: {0}", configuration.WorkItemName);
wm.DeleteWorkItem(configuration.WorkItemName);
}
}
//Delete the containers we created
if (configuration.ShouldDeleteContainer)
{
DeleteContainers(configuration, stagingContainer);
}
}
}
private static void AddWork(IBatchClient client)
{
using (var wm = client.OpenWorkItemManager())
{
//The toolbox contains some helper mechanisms to ease submission and monitoring of tasks.
var toolbox = client.OpenToolbox();
//Create a work item
var workItemName = Environment.GetEnvironmentVariable("USERNAME") +
DateTime.Now.ToString("yyyyMMdd-HHmmss");
Console.WriteLine("Creating work item {0}", workItemName);
var cloudWorkItem = wm.CreateWorkItem(workItemName);
cloudWorkItem.JobExecutionEnvironment = new JobExecutionEnvironment { PoolName = PoolName };
cloudWorkItem.JobSpecification = new JobSpecification()
{
JobPreparationTask = new JobPreparationTask()
{
Name = "jobprep",
CommandLine = "cmd /c ping 127.0.0.1"
}
};
cloudWorkItem.Commit();
//Wait for an active job
var maxJobCreationTimeout = TimeSpan.FromSeconds(90);
var jobCreationStartTime = DateTime.Now;
var jobCreationTimeoutTime = jobCreationStartTime.Add(maxJobCreationTimeout);
cloudWorkItem = wm.GetWorkItem(workItemName);
Console.WriteLine("Waiting for a job to become active...");
while (cloudWorkItem.ExecutionInformation?.RecentJob == null)
{
cloudWorkItem.Refresh();
if (DateTime.Now > jobCreationTimeoutTime)
{
throw new TimeoutException("Timed out waiting for job.");
}
Thread.Sleep(TimeSpan.FromSeconds(5));
}
var jobName = cloudWorkItem.ExecutionInformation.RecentJob.Name;
Console.WriteLine("Found job {0}. Adding task objects...", jobName);
var job = wm.GetJob(workItemName, jobName);
job.AddTask(new CloudTask("task1", "hostname"));
job.AddTask(new CloudTask("task2", "cmd /c dir /s ..\\.."));
var haveEnoughSuccessJobPrepTask = WaitAllJobPrepTask(
client,
PoolName,
workItemName,
jobName,
(succ, fail) => succ >= 2 || fail > 0, // stop indicator
(succ, fail) => succ >= 2, // success indicator
TimeSpan.FromMinutes(5), TimeSpan.FromSeconds(5), 10
);
if (haveEnoughSuccessJobPrepTask) // got enough nodes, continue
{
//We use the task state monitor to monitor the state of our tasks -- in this case we will wait for them all to complete.
var taskStateMonitor = toolbox.CreateTaskStateMonitor();
// blocking wait on the list of tasks until all tasks reach completed state
var timedOut = taskStateMonitor.WaitAll(job.ListTasks(), TaskState.Completed,
TimeSpan.FromMinutes(20));
if (timedOut)
{
throw new TimeoutException("Timed out waiting for tasks");
}
// dump task output
foreach (var t in job.ListTasks())
{
Console.WriteLine("Task " + t.Name + " output:\n" +
t.GetTaskFile(Constants.StandardOutFileName).ReadAsString());
}
}
else // too much failure, abort
{
Console.WriteLine("too much failure, abort.");
}
// remember to delete the workitem before exiting
Console.WriteLine("Deleting work item: {0}", workItemName);
wm.DeleteWorkItem(workItemName);
}
}
/// <summary>
/// Submit a work item with tasks which have dependant files.
/// The files are automatically uploaded to Azure Storage using the FileStaging feature of the Azure.Batch client library.
/// </summary>
/// <param name="client"></param>
private static void AddWorkWithFileStaging(IBatchClient client)
{
using (IWorkItemManager wm = client.OpenWorkItemManager())
{
IToolbox toolbox = client.OpenToolbox();
ITaskSubmissionHelper taskSubmissionHelper = toolbox.CreateTaskSubmissionHelper(wm, PoolName);
taskSubmissionHelper.WorkItemName = Environment.GetEnvironmentVariable("USERNAME") + DateTime.Now.ToString("yyyyMMdd-HHmmss");
Console.WriteLine("Creating work item: {0}", taskSubmissionHelper.WorkItemName);
ICloudTask taskToAdd1 = new CloudTask("task_with_file1", "cmd /c type *.txt");
ICloudTask taskToAdd2 = new CloudTask("task_with_file2", "cmd /c dir /s");
//Set up a collection of files to be staged -- these files will be uploaded to Azure Storage
//when the tasks are submitted to the Azure Batch service.
taskToAdd1.FilesToStage = new List<IFileStagingProvider>();
taskToAdd2.FilesToStage = new List<IFileStagingProvider>();
// generate a local file in temp directory
Process cur = Process.GetCurrentProcess();
string path = Path.Combine(Environment.GetEnvironmentVariable("TEMP"), cur.Id + ".txt");
File.WriteAllText(path, "hello from " + cur.Id);
// add file as task dependency so it'll be uploaded to storage before task
// is submitted and download onto the VM before task starts execution
FileToStage file = new FileToStage(path, new StagingStorageAccount(StorageAccount, StorageKey, StorageBlobEndpoint));
taskToAdd1.FilesToStage.Add(file);
taskToAdd2.FilesToStage.Add(file); // filetostage object can be reused
taskSubmissionHelper.AddTask(taskToAdd1);
taskSubmissionHelper.AddTask(taskToAdd2);
IJobCommitUnboundArtifacts artifacts = null;
bool errors = false;
try
{
//Stage the files to Azure Storage and add the tasks to Azure Batch.
artifacts = taskSubmissionHelper.Commit() as IJobCommitUnboundArtifacts;
}
catch (AggregateException ae)
{
errors = true;
// Go through all exceptions and dump useful information
ae.Handle(x =>
{
if (x is BatchException)
{
BatchException be = x as BatchException;
if (null != be.RequestInformation && null != be.RequestInformation.AzureError)
{
// Write the server side error information
Console.Error.WriteLine(be.RequestInformation.AzureError.Code);
Console.Error.WriteLine(be.RequestInformation.AzureError.Message.Value);
if (null != be.RequestInformation.AzureError.Values)
{
foreach (var v in be.RequestInformation.AzureError.Values)
{
Console.Error.WriteLine(v.Key + " : " + v.Value);
}
}
}
}
else
{
Console.WriteLine(x);
}
// Indicate that the error has been handled
return true;
});
}
// if there is no exception, wait for job response
if (!errors)
{
List<ICloudTask> tasksToMonitorForCompletion = wm.ListTasks(artifacts.WorkItemName, artifacts.JobName).ToList();
Console.WriteLine("Waiting for all tasks to complete on work item: {0}, Job: {1} ...", artifacts.WorkItemName, artifacts.JobName);
client.OpenToolbox().CreateTaskStateMonitor().WaitAll(tasksToMonitorForCompletion, TaskState.Completed, TimeSpan.FromMinutes(30));
foreach (ICloudTask task in wm.ListTasks(artifacts.WorkItemName, artifacts.JobName))
{
Console.WriteLine("Task " + task.Name + " says:\n" + task.GetTaskFile(Constants.StandardOutFileName).ReadAsString());
Console.WriteLine(task.GetTaskFile(Constants.StandardErrorFileName).ReadAsString());
}
}
Console.WriteLine("Deleting work item: {0}", artifacts.WorkItemName);
wm.DeleteWorkItem(artifacts.WorkItemName); //Don't forget to delete the work item before you exit
}
}
private static void AddWork(IBatchClient client)
{
using (IWorkItemManager wm = client.OpenWorkItemManager())
{
//The toolbox contains some helper mechanisms to ease submission and monitoring of tasks.
IToolbox toolbox = client.OpenToolbox();
// to submit a batch of tasks, the TaskSubmissionHelper is useful.
ITaskSubmissionHelper taskSubmissionHelper = toolbox.CreateTaskSubmissionHelper(wm, PoolName);
// workitem is uniquely identified by its name so we will use a timestamp as suffix
taskSubmissionHelper.WorkItemName = Environment.GetEnvironmentVariable("USERNAME") + DateTime.Now.ToString("yyyyMMdd-HHmmss");
Console.WriteLine("Creating work item: {0}", taskSubmissionHelper.WorkItemName);
// add 2 quick tasks. Tasks within a job must have unique names
taskSubmissionHelper.AddTask(new CloudTask("task1", "hostname"));
taskSubmissionHelper.AddTask(new CloudTask("task2", "cmd /c dir /s"));
//Commit the tasks to the Batch Service
IJobCommitUnboundArtifacts artifacts = taskSubmissionHelper.Commit() as IJobCommitUnboundArtifacts;
// TaskSubmissionHelper commit artifacts returns the workitem and job name
if (artifacts != null)
{
ICloudJob job = wm.GetJob(artifacts.WorkItemName, artifacts.JobName);
Console.WriteLine("Waiting for all tasks to complete on work item: {0}, Job: {1} ...",
artifacts.WorkItemName, artifacts.JobName);
//We use the task state monitor to monitor the state of our tasks -- in this case we will wait for them all to complete.
ITaskStateMonitor taskStateMonitor = toolbox.CreateTaskStateMonitor();
// blocking wait on the list of tasks until all tasks reach completed state
bool timedOut = taskStateMonitor.WaitAll(job.ListTasks(), TaskState.Completed,
new TimeSpan(0, 20, 0));
if (timedOut)
{
throw new TimeoutException("Timed out waiting for tasks");
}
// dump task output
foreach (var t in job.ListTasks())
{
Console.WriteLine("Task " + t.Name + " says:\n" +
t.GetTaskFile(Constants.StandardOutFileName).ReadAsString());
}
// remember to delete the workitem before exiting
Console.WriteLine("Deleting work item: {0}", artifacts.WorkItemName);
wm.DeleteWorkItem(artifacts.WorkItemName);
}
}
}
