TaskDependencies

This C# console application demonstrates the use of task dependencies in Azure Batch. With task dependencies, you can configure scenarios such as the following:

• taskB depends on taskA (taskB will not begin execution until taskA has completed)
• taskC depends on both taskA and taskB
• taskD depends on a range of tasks, such as tasks 1 through 10, before it executes

Requirements

• Task dependencies require a job with BatchJobCreateOptions.UsesTaskDependencies set to true (the default is false). You must set this property value to true to use task dependencies.

  var jobOptions = new BatchJobCreateOptions(
      "MyJob",
      new BatchPoolInfo { PoolId = "MyPool" })
  {
      UsesTaskDependencies = true,
  };
  await batchClient.CreateJobAsync(jobOptions);

• When using task ranges for your dependencies, your task IDs must be string representations of integer values.

  var tasks = new List<BatchTaskCreateOptions>
  {
      new BatchTaskCreateOptions("1", "cmd.exe /c MyTaskExecutable.exe -process data1"),
      new BatchTaskCreateOptions("2", "cmd.exe /c MyTaskExecutable.exe -process data2"),
  };