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   /*
    * Copyright 2010-2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
    * 
    * Licensed under the Apache License, Version 2.0 (the "License").
    * You may not use this file except in compliance with the License.
    * A copy of the License is located at
    * 
    *  http://aws.amazon.com/apache2.0
    * 
   * or in the "license" file accompanying this file. This file is distributed
   * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
   * express or implied. See the License for the specific language governing
   * permissions and limitations under the License.
   */
  package com.amazonaws.services.elasticmapreduce;
  
  
  
Asynchronous client for accessing AmazonElasticMapReduce. All asynchronous calls made using this client are non-blocking. Callers could either process the result and handle the exceptions in the worker thread by providing a callback handler when making the call, or use the returned Future object to check the result of the call in the calling thread.

Amazon Elastic MapReduce (Amazon EMR) is a web service that makes it easy to process large amounts of data efficiently. Amazon EMR uses Hadoop processing combined with several AWS products to do tasks such as web indexing, data mining, log file analysis, machine learning, scientific simulation, and data warehousing.

  
          implements AmazonElasticMapReduceAsync {

    
Executor service for executing asynchronous requests.
  
      private ExecutorService executorService;
  
      private static final int DEFAULT_THREAD_POOL_SIZE = 50;

    
Constructs a new asynchronous client to invoke service methods on AmazonElasticMapReduce. A credentials provider chain will be used that searches for credentials in this order:
  • Environment Variables - AWS_ACCESS_KEY_ID and AWS_SECRET_KEY
  • Java System Properties - aws.accessKeyId and aws.secretKey
  • Instance profile credentials delivered through the Amazon EC2 metadata service

All service calls made using this new client object are blocking, and will not return until the service call completes.

  
      public AmazonElasticMapReduceAsyncClient() {
          this(new DefaultAWSCredentialsProviderChain());
      }

    
Constructs a new asynchronous client to invoke service methods on AmazonElasticMapReduce. A credentials provider chain will be used that searches for credentials in this order:
  • Environment Variables - AWS_ACCESS_KEY_ID and AWS_SECRET_KEY
  • Java System Properties - aws.accessKeyId and aws.secretKey
  • Instance profile credentials delivered through the Amazon EC2 metadata service

All service calls made using this new client object are blocking, and will not return until the service call completes.

Parameters:
clientConfiguration The client configuration options controlling how this client connects to AmazonElasticMapReduce (ex: proxy settings, retry counts, etc.).
See also:
com.amazonaws.auth.DefaultAWSCredentialsProviderChain
  
      public AmazonElasticMapReduceAsyncClient(ClientConfiguration clientConfiguration) {
          this(new DefaultAWSCredentialsProviderChain(), clientConfiguration, Executors.newFixedThreadPool(clientConfiguration.getMaxConnections()));
      }

    
Constructs a new asynchronous client to invoke service methods on AmazonElasticMapReduce using the specified AWS account credentials. Default client settings will be used, and a fixed size thread pool will be created for executing the asynchronous tasks.

All calls made using this new client object are non-blocking, and will immediately return a Java Future object that the caller can later check to see if the service call has actually completed.

Parameters:
awsCredentials The AWS credentials (access key ID and secret key) to use when authenticating with AWS services.
 
     public AmazonElasticMapReduceAsyncClient(AWSCredentials awsCredentials) {
         this(awsCredentials, Executors.newFixedThreadPool());
     }

    
Constructs a new asynchronous client to invoke service methods on AmazonElasticMapReduce using the specified AWS account credentials and executor service. Default client settings will be used.

All calls made using this new client object are non-blocking, and will immediately return a Java Future object that the caller can later check to see if the service call has actually completed.

Parameters:
awsCredentials The AWS credentials (access key ID and secret key) to use when authenticating with AWS services.
executorService The executor service by which all asynchronous requests will be executed.
 
     public AmazonElasticMapReduceAsyncClient(AWSCredentials awsCredentialsExecutorService executorService) {
         super(awsCredentials);
         this. = executorService;
     }

    
Constructs a new asynchronous client to invoke service methods on AmazonElasticMapReduce using the specified AWS account credentials, executor service, and client configuration options.

All calls made using this new client object are non-blocking, and will immediately return a Java Future object that the caller can later check to see if the service call has actually completed.

Parameters:
awsCredentials The AWS credentials (access key ID and secret key) to use when authenticating with AWS services.
clientConfiguration Client configuration options (ex: max retry limit, proxy settings, etc).
executorService The executor service by which all asynchronous requests will be executed.
 
     public AmazonElasticMapReduceAsyncClient(AWSCredentials awsCredentials,
                 ClientConfiguration clientConfigurationExecutorService executorService) {
         super(awsCredentialsclientConfiguration);
         this. = executorService;
     }

    
Constructs a new asynchronous client to invoke service methods on AmazonElasticMapReduce using the specified AWS account credentials provider. Default client settings will be used, and a fixed size thread pool will be created for executing the asynchronous tasks.

All calls made using this new client object are non-blocking, and will immediately return a Java Future object that the caller can later check to see if the service call has actually completed.

Parameters:
awsCredentialsProvider The AWS credentials provider which will provide credentials to authenticate requests with AWS services.
 
     public AmazonElasticMapReduceAsyncClient(AWSCredentialsProvider awsCredentialsProvider) {
         this(awsCredentialsProvider, Executors.newFixedThreadPool());
     }

    
Constructs a new asynchronous client to invoke service methods on AmazonElasticMapReduce using the specified AWS account credentials provider and executor service. Default client settings will be used.

All calls made using this new client object are non-blocking, and will immediately return a Java Future object that the caller can later check to see if the service call has actually completed.

Parameters:
awsCredentialsProvider The AWS credentials provider which will provide credentials to authenticate requests with AWS services.
executorService The executor service by which all asynchronous requests will be executed.
 
     public AmazonElasticMapReduceAsyncClient(AWSCredentialsProvider awsCredentialsProviderExecutorService executorService) {
         this(awsCredentialsProvidernew ClientConfiguration(), executorService);
     }

    
Constructs a new asynchronous client to invoke service methods on AmazonElasticMapReduce using the specified AWS account credentials provider and client configuration options.

All calls made using this new client object are non-blocking, and will immediately return a Java Future object that the caller can later check to see if the service call has actually completed.

Parameters:
awsCredentialsProvider The AWS credentials provider which will provide credentials to authenticate requests with AWS services.
clientConfiguration Client configuration options (ex: max retry limit, proxy settings, etc).
 
     public AmazonElasticMapReduceAsyncClient(AWSCredentialsProvider awsCredentialsProvider,
                 ClientConfiguration clientConfiguration) {
         this(awsCredentialsProviderclientConfiguration, Executors.newFixedThreadPool(clientConfiguration.getMaxConnections()));
     }

    
Constructs a new asynchronous client to invoke service methods on AmazonElasticMapReduce using the specified AWS account credentials provider, executor service, and client configuration options.

All calls made using this new client object are non-blocking, and will immediately return a Java Future object that the caller can later check to see if the service call has actually completed.

Parameters:
awsCredentialsProvider The AWS credentials provider which will provide credentials to authenticate requests with AWS services.
clientConfiguration Client configuration options (ex: max retry limit, proxy settings, etc).
executorService The executor service by which all asynchronous requests will be executed.
 
     public AmazonElasticMapReduceAsyncClient(AWSCredentialsProvider awsCredentialsProvider,
                 ClientConfiguration clientConfigurationExecutorService executorService) {
         super(awsCredentialsProviderclientConfiguration);
         this. = executorService;
     }

    
Returns the executor service used by this async client to execute requests.

Returns:
The executor service used by this async client to execute requests.
 
     public ExecutorService getExecutorService() {
         return ;
     }

    
Shuts down the client, releasing all managed resources. This includes forcibly terminating all pending asynchronous service calls. Clients who wish to give pending asynchronous service calls time to complete should call getExecutorService().shutdown() followed by getExecutorService().awaitTermination() prior to calling this method.
 
     @Override
     public void shutdown() {
         super.shutdown();
         .shutdownNow();
     }
            
    

Provides information about the bootstrap actions associated with a cluster.

Parameters:
listBootstrapActionsRequest Container for the necessary parameters to execute the ListBootstrapActions operation on AmazonElasticMapReduce.
Returns:
A Java Future object containing the response from the ListBootstrapActions service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
 
     public Future<ListBootstrapActionsResultlistBootstrapActionsAsync(final ListBootstrapActionsRequest listBootstrapActionsRequest
             throws AmazonServiceExceptionAmazonClientException {
         return .submit(new Callable<ListBootstrapActionsResult>() {
             public ListBootstrapActionsResult call() throws Exception {
                 return listBootstrapActions(listBootstrapActionsRequest);
         }
     });
     }

    

Provides information about the bootstrap actions associated with a cluster.

Parameters:
listBootstrapActionsRequest Container for the necessary parameters to execute the ListBootstrapActions operation on AmazonElasticMapReduce.
asyncHandler Asynchronous callback handler for events in the life-cycle of the request. Users could provide the implementation of the four callback methods in this interface to process the operation result or handle the exception.
Returns:
A Java Future object containing the response from the ListBootstrapActions service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
 
             final ListBootstrapActionsRequest listBootstrapActionsRequest,
             final AsyncHandler<ListBootstrapActionsRequestListBootstrapActionsResultasyncHandler)
                     throws AmazonServiceExceptionAmazonClientException {
         return .submit(new Callable<ListBootstrapActionsResult>() {
             public ListBootstrapActionsResult call() throws Exception {
               ListBootstrapActionsResult result;
                 try {
                 result = listBootstrapActions(listBootstrapActionsRequest);
               } catch (Exception ex) {
                   asyncHandler.onError(ex);
             throw ex;
               }
               asyncHandler.onSuccess(listBootstrapActionsRequestresult);
                  return result;
         }
     });
     }
    
    

Adds tags to an Amazon EMR resource. Tags make it easier to associate clusters in various ways, such as grouping clusters to track your Amazon EMR resource allocation costs. For more information, see Tagging Amazon EMR Resources .

Parameters:
addTagsRequest Container for the necessary parameters to execute the AddTags operation on AmazonElasticMapReduce.
Returns:
A Java Future object containing the response from the AddTags service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
 
     public Future<AddTagsResultaddTagsAsync(final AddTagsRequest addTagsRequest
             throws AmazonServiceExceptionAmazonClientException {
         return .submit(new Callable<AddTagsResult>() {
             public AddTagsResult call() throws Exception {
                 return addTags(addTagsRequest);
         }
     });
     }

    

Adds tags to an Amazon EMR resource. Tags make it easier to associate clusters in various ways, such as grouping clusters to track your Amazon EMR resource allocation costs. For more information, see Tagging Amazon EMR Resources .

Parameters:
addTagsRequest Container for the necessary parameters to execute the AddTags operation on AmazonElasticMapReduce.
asyncHandler Asynchronous callback handler for events in the life-cycle of the request. Users could provide the implementation of the four callback methods in this interface to process the operation result or handle the exception.
Returns:
A Java Future object containing the response from the AddTags service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
 
     public Future<AddTagsResultaddTagsAsync(
             final AddTagsRequest addTagsRequest,
             final AsyncHandler<AddTagsRequestAddTagsResultasyncHandler)
                     throws AmazonServiceExceptionAmazonClientException {
         return .submit(new Callable<AddTagsResult>() {
             public AddTagsResult call() throws Exception {
               AddTagsResult result;
                 try {
                 result = addTags(addTagsRequest);
               } catch (Exception ex) {
                   asyncHandler.onError(ex);
             throw ex;
               }
               asyncHandler.onSuccess(addTagsRequestresult);
                  return result;
         }
     });
     }
    
    

Sets whether all AWS Identity and Access Management (IAM) users under your account can access the specified job flows. This action works on running job flows. You can also set the visibility of a job flow when you launch it using the VisibleToAllUsers parameter of RunJobFlow. The SetVisibleToAllUsers action can be called only by an IAM user who created the job flow or the AWS account that owns the job flow.

Parameters:
setVisibleToAllUsersRequest Container for the necessary parameters to execute the SetVisibleToAllUsers operation on AmazonElasticMapReduce.
Returns:
A Java Future object containing the response from the SetVisibleToAllUsers service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
 
     public Future<VoidsetVisibleToAllUsersAsync(final SetVisibleToAllUsersRequest setVisibleToAllUsersRequest
             throws AmazonServiceExceptionAmazonClientException {
         return .submit(new Callable<Void>() {
             public Void call() throws Exception {
                 setVisibleToAllUsers(setVisibleToAllUsersRequest);
                 return null;
         }
     });
     }

    

Sets whether all AWS Identity and Access Management (IAM) users under your account can access the specified job flows. This action works on running job flows. You can also set the visibility of a job flow when you launch it using the VisibleToAllUsers parameter of RunJobFlow. The SetVisibleToAllUsers action can be called only by an IAM user who created the job flow or the AWS account that owns the job flow.

Parameters:
setVisibleToAllUsersRequest Container for the necessary parameters to execute the SetVisibleToAllUsers operation on AmazonElasticMapReduce.
asyncHandler Asynchronous callback handler for events in the life-cycle of the request. Users could provide the implementation of the four callback methods in this interface to process the operation result or handle the exception.
Returns:
A Java Future object containing the response from the SetVisibleToAllUsers service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
 
             final SetVisibleToAllUsersRequest setVisibleToAllUsersRequest,
             final AsyncHandler<SetVisibleToAllUsersRequestVoidasyncHandler)
                     throws AmazonServiceExceptionAmazonClientException {
         return .submit(new Callable<Void>() {
             public Void call() throws Exception {
               try {
                 setVisibleToAllUsers(setVisibleToAllUsersRequest);
               } catch (Exception ex) {
                   asyncHandler.onError(ex);
             throw ex;
               }
               asyncHandler.onSuccess(setVisibleToAllUsersRequestnull);
                  return null;
         }
     });
     }
    
    

Provides a list of steps for the cluster.

Parameters:
listStepsRequest Container for the necessary parameters to execute the ListSteps operation on AmazonElasticMapReduce.
Returns:
A Java Future object containing the response from the ListSteps service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
 
     public Future<ListStepsResultlistStepsAsync(final ListStepsRequest listStepsRequest
             throws AmazonServiceExceptionAmazonClientException {
         return .submit(new Callable<ListStepsResult>() {
             public ListStepsResult call() throws Exception {
                 return listSteps(listStepsRequest);
         }
     });
     }

    

Provides a list of steps for the cluster.

Parameters:
listStepsRequest Container for the necessary parameters to execute the ListSteps operation on AmazonElasticMapReduce.
asyncHandler Asynchronous callback handler for events in the life-cycle of the request. Users could provide the implementation of the four callback methods in this interface to process the operation result or handle the exception.
Returns:
A Java Future object containing the response from the ListSteps service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
 
             final ListStepsRequest listStepsRequest,
             final AsyncHandler<ListStepsRequestListStepsResultasyncHandler)
                     throws AmazonServiceExceptionAmazonClientException {
         return .submit(new Callable<ListStepsResult>() {
             public ListStepsResult call() throws Exception {
               ListStepsResult result;
                 try {
                 result = listSteps(listStepsRequest);
               } catch (Exception ex) {
                   asyncHandler.onError(ex);
             throw ex;
               }
               asyncHandler.onSuccess(listStepsRequestresult);
                  return result;
         }
     });
     }
    
    

AddJobFlowSteps adds new steps to a running job flow. A maximum of 256 steps are allowed in each job flow.

If your job flow is long-running (such as a Hive data warehouse) or complex, you may require more than 256 steps to process your data. You can bypass the 256-step limitation in various ways, including using the SSH shell to connect to the master node and submitting queries directly to the software running on the master node, such as Hive and Hadoop. For more information on how to do this, go to Add More than 256 Steps to a Job Flow in the Amazon Elastic MapReduce Developer's Guide .

A step specifies the location of a JAR file stored either on the master node of the job flow or in Amazon S3. Each step is performed by the main function of the main class of the JAR file. The main class can be specified either in the manifest of the JAR or by using the MainFunction parameter of the step.

Elastic MapReduce executes each step in the order listed. For a step to be considered complete, the main function must exit with a zero exit code and all Hadoop jobs started while the step was running must have completed and run successfully.

You can only add steps to a job flow that is in one of the following states: STARTING, BOOTSTRAPPING, RUNNING, or WAITING.

Parameters:
addJobFlowStepsRequest Container for the necessary parameters to execute the AddJobFlowSteps operation on AmazonElasticMapReduce.
Returns:
A Java Future object containing the response from the AddJobFlowSteps service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
 
     public Future<AddJobFlowStepsResultaddJobFlowStepsAsync(final AddJobFlowStepsRequest addJobFlowStepsRequest
             throws AmazonServiceExceptionAmazonClientException {
         return .submit(new Callable<AddJobFlowStepsResult>() {
             public AddJobFlowStepsResult call() throws Exception {
                 return addJobFlowSteps(addJobFlowStepsRequest);
         }
     });
     }

    

AddJobFlowSteps adds new steps to a running job flow. A maximum of 256 steps are allowed in each job flow.

If your job flow is long-running (such as a Hive data warehouse) or complex, you may require more than 256 steps to process your data. You can bypass the 256-step limitation in various ways, including using the SSH shell to connect to the master node and submitting queries directly to the software running on the master node, such as Hive and Hadoop. For more information on how to do this, go to Add More than 256 Steps to a Job Flow in the Amazon Elastic MapReduce Developer's Guide .

A step specifies the location of a JAR file stored either on the master node of the job flow or in Amazon S3. Each step is performed by the main function of the main class of the JAR file. The main class can be specified either in the manifest of the JAR or by using the MainFunction parameter of the step.

Elastic MapReduce executes each step in the order listed. For a step to be considered complete, the main function must exit with a zero exit code and all Hadoop jobs started while the step was running must have completed and run successfully.

You can only add steps to a job flow that is in one of the following states: STARTING, BOOTSTRAPPING, RUNNING, or WAITING.

Parameters:
addJobFlowStepsRequest Container for the necessary parameters to execute the AddJobFlowSteps operation on AmazonElasticMapReduce.
asyncHandler Asynchronous callback handler for events in the life-cycle of the request. Users could provide the implementation of the four callback methods in this interface to process the operation result or handle the exception.
Returns:
A Java Future object containing the response from the AddJobFlowSteps service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
 
             final AddJobFlowStepsRequest addJobFlowStepsRequest,
             final AsyncHandler<AddJobFlowStepsRequestAddJobFlowStepsResultasyncHandler)
                     throws AmazonServiceExceptionAmazonClientException {
         return .submit(new Callable<AddJobFlowStepsResult>() {
             public AddJobFlowStepsResult call() throws Exception {
               AddJobFlowStepsResult result;
                 try {
                 result = addJobFlowSteps(addJobFlowStepsRequest);
               } catch (Exception ex) {
                   asyncHandler.onError(ex);
             throw ex;
               }
               asyncHandler.onSuccess(addJobFlowStepsRequestresult);
                  return result;
         }
     });
     }
    
    

Provides more detail about the cluster step.

Parameters:
describeStepRequest Container for the necessary parameters to execute the DescribeStep operation on AmazonElasticMapReduce.
Returns:
A Java Future object containing the response from the DescribeStep service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
 
     public Future<DescribeStepResultdescribeStepAsync(final DescribeStepRequest describeStepRequest
             throws AmazonServiceExceptionAmazonClientException {
         return .submit(new Callable<DescribeStepResult>() {
             public DescribeStepResult call() throws Exception {
                 return describeStep(describeStepRequest);
         }
     });
     }

    

Provides more detail about the cluster step.

Parameters:
describeStepRequest Container for the necessary parameters to execute the DescribeStep operation on AmazonElasticMapReduce.
asyncHandler Asynchronous callback handler for events in the life-cycle of the request. Users could provide the implementation of the four callback methods in this interface to process the operation result or handle the exception.
Returns:
A Java Future object containing the response from the DescribeStep service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
 
             final DescribeStepRequest describeStepRequest,
             final AsyncHandler<DescribeStepRequestDescribeStepResultasyncHandler)
                     throws AmazonServiceExceptionAmazonClientException {
         return .submit(new Callable<DescribeStepResult>() {
             public DescribeStepResult call() throws Exception {
               DescribeStepResult result;
                 try {
                 result = describeStep(describeStepRequest);
               } catch (Exception ex) {
                   asyncHandler.onError(ex);
             throw ex;
               }
               asyncHandler.onSuccess(describeStepRequestresult);
                  return result;
         }
     });
     }
    
    

Provides the status of all clusters visible to this AWS account. Allows you to filter the list of clusters based on certain criteria; for example, filtering by cluster creation date and time or by status. This call returns a maximum of 50 clusters per call, but returns a marker to track the paging of the cluster list across multiple ListClusters calls.

Parameters:
listClustersRequest Container for the necessary parameters to execute the ListClusters operation on AmazonElasticMapReduce.
Returns:
A Java Future object containing the response from the ListClusters service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
 
     public Future<ListClustersResultlistClustersAsync(final ListClustersRequest listClustersRequest
             throws AmazonServiceExceptionAmazonClientException {
         return .submit(new Callable<ListClustersResult>() {
             public ListClustersResult call() throws Exception {
                 return listClusters(listClustersRequest);
         }
     });
     }

    

Provides the status of all clusters visible to this AWS account. Allows you to filter the list of clusters based on certain criteria; for example, filtering by cluster creation date and time or by status. This call returns a maximum of 50 clusters per call, but returns a marker to track the paging of the cluster list across multiple ListClusters calls.

Parameters:
listClustersRequest Container for the necessary parameters to execute the ListClusters operation on AmazonElasticMapReduce.
asyncHandler Asynchronous callback handler for events in the life-cycle of the request. Users could provide the implementation of the four callback methods in this interface to process the operation result or handle the exception.
Returns:
A Java Future object containing the response from the ListClusters service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
 
             final ListClustersRequest listClustersRequest,
             final AsyncHandler<ListClustersRequestListClustersResultasyncHandler)
                     throws AmazonServiceExceptionAmazonClientException {
         return .submit(new Callable<ListClustersResult>() {
             public ListClustersResult call() throws Exception {
               ListClustersResult result;
                 try {
                 result = listClusters(listClustersRequest);
               } catch (Exception ex) {
                   asyncHandler.onError(ex);
             throw ex;
               }
               asyncHandler.onSuccess(listClustersRequestresult);
                  return result;
         }
     });
     }
    
    

Removes tags from an Amazon EMR resource. Tags make it easier to associate clusters in various ways, such as grouping clusters to track your Amazon EMR resource allocation costs. For more information, see Tagging Amazon EMR Resources .

The following example removes the stack tag with value Prod from a cluster:

Parameters:
removeTagsRequest Container for the necessary parameters to execute the RemoveTags operation on AmazonElasticMapReduce.
Returns:
A Java Future object containing the response from the RemoveTags service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
 
     public Future<RemoveTagsResultremoveTagsAsync(final RemoveTagsRequest removeTagsRequest
             throws AmazonServiceExceptionAmazonClientException {
         return .submit(new Callable<RemoveTagsResult>() {
             public RemoveTagsResult call() throws Exception {
                 return removeTags(removeTagsRequest);
         }
     });
     }

    

Removes tags from an Amazon EMR resource. Tags make it easier to associate clusters in various ways, such as grouping clusters to track your Amazon EMR resource allocation costs. For more information, see Tagging Amazon EMR Resources .

The following example removes the stack tag with value Prod from a cluster:

Parameters:
removeTagsRequest Container for the necessary parameters to execute the RemoveTags operation on AmazonElasticMapReduce.
asyncHandler Asynchronous callback handler for events in the life-cycle of the request. Users could provide the implementation of the four callback methods in this interface to process the operation result or handle the exception.
Returns:
A Java Future object containing the response from the RemoveTags service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
 
             final RemoveTagsRequest removeTagsRequest,
             final AsyncHandler<RemoveTagsRequestRemoveTagsResultasyncHandler)
                     throws AmazonServiceExceptionAmazonClientException {
         return .submit(new Callable<RemoveTagsResult>() {
             public RemoveTagsResult call() throws Exception {
               RemoveTagsResult result;
                 try {
                 result = removeTags(removeTagsRequest);
               } catch (Exception ex) {
                   asyncHandler.onError(ex);
             throw ex;
               }
               asyncHandler.onSuccess(removeTagsRequestresult);
                  return result;
         }
     });
     }
    
    

Provides all available details about the instance groups in a cluster.

Parameters:
listInstanceGroupsRequest Container for the necessary parameters to execute the ListInstanceGroups operation on AmazonElasticMapReduce.
Returns:
A Java Future object containing the response from the ListInstanceGroups service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
 
     public Future<ListInstanceGroupsResultlistInstanceGroupsAsync(final ListInstanceGroupsRequest listInstanceGroupsRequest
             throws AmazonServiceExceptionAmazonClientException {
         return .submit(new Callable<ListInstanceGroupsResult>() {
             public ListInstanceGroupsResult call() throws Exception {
                 return listInstanceGroups(listInstanceGroupsRequest);
         }
     });
     }

    

Provides all available details about the instance groups in a cluster.

Parameters:
listInstanceGroupsRequest Container for the necessary parameters to execute the ListInstanceGroups operation on AmazonElasticMapReduce.
asyncHandler Asynchronous callback handler for events in the life-cycle of the request. Users could provide the implementation of the four callback methods in this interface to process the operation result or handle the exception.
Returns:
A Java Future object containing the response from the ListInstanceGroups service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
            final ListInstanceGroupsRequest listInstanceGroupsRequest,
            final AsyncHandler<ListInstanceGroupsRequestListInstanceGroupsResultasyncHandler)
                    throws AmazonServiceExceptionAmazonClientException {
        return .submit(new Callable<ListInstanceGroupsResult>() {
            public ListInstanceGroupsResult call() throws Exception {
              ListInstanceGroupsResult result;
                try {
                result = listInstanceGroups(listInstanceGroupsRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(listInstanceGroupsRequestresult);
                 return result;
        }
    });
    }
    
    

ModifyInstanceGroups modifies the number of nodes and configuration settings of an instance group. The input parameters include the new target instance count for the group and the instance group ID. The call will either succeed or fail atomically.

Parameters:
modifyInstanceGroupsRequest Container for the necessary parameters to execute the ModifyInstanceGroups operation on AmazonElasticMapReduce.
Returns:
A Java Future object containing the response from the ModifyInstanceGroups service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
    public Future<VoidmodifyInstanceGroupsAsync(final ModifyInstanceGroupsRequest modifyInstanceGroupsRequest
            throws AmazonServiceExceptionAmazonClientException {
        return .submit(new Callable<Void>() {
            public Void call() throws Exception {
                modifyInstanceGroups(modifyInstanceGroupsRequest);
                return null;
        }
    });
    }

    

ModifyInstanceGroups modifies the number of nodes and configuration settings of an instance group. The input parameters include the new target instance count for the group and the instance group ID. The call will either succeed or fail atomically.

Parameters:
modifyInstanceGroupsRequest Container for the necessary parameters to execute the ModifyInstanceGroups operation on AmazonElasticMapReduce.
asyncHandler Asynchronous callback handler for events in the life-cycle of the request. Users could provide the implementation of the four callback methods in this interface to process the operation result or handle the exception.
Returns:
A Java Future object containing the response from the ModifyInstanceGroups service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
            final ModifyInstanceGroupsRequest modifyInstanceGroupsRequest,
            final AsyncHandler<ModifyInstanceGroupsRequestVoidasyncHandler)
                    throws AmazonServiceExceptionAmazonClientException {
        return .submit(new Callable<Void>() {
            public Void call() throws Exception {
              try {
                modifyInstanceGroups(modifyInstanceGroupsRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(modifyInstanceGroupsRequestnull);
                 return null;
        }
    });
    }
    
    

Provides information about the cluster instances that Amazon EMR provisions on behalf of a user when it creates the cluster. For example, this operation indicates when the EC2 instances reach the Ready state, when instances become available to Amazon EMR to use for jobs, and the IP addresses for cluster instances, etc.

Parameters:
listInstancesRequest Container for the necessary parameters to execute the ListInstances operation on AmazonElasticMapReduce.
Returns:
A Java Future object containing the response from the ListInstances service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
    public Future<ListInstancesResultlistInstancesAsync(final ListInstancesRequest listInstancesRequest
            throws AmazonServiceExceptionAmazonClientException {
        return .submit(new Callable<ListInstancesResult>() {
            public ListInstancesResult call() throws Exception {
                return listInstances(listInstancesRequest);
        }
    });
    }

    

Provides information about the cluster instances that Amazon EMR provisions on behalf of a user when it creates the cluster. For example, this operation indicates when the EC2 instances reach the Ready state, when instances become available to Amazon EMR to use for jobs, and the IP addresses for cluster instances, etc.

Parameters:
listInstancesRequest Container for the necessary parameters to execute the ListInstances operation on AmazonElasticMapReduce.
asyncHandler Asynchronous callback handler for events in the life-cycle of the request. Users could provide the implementation of the four callback methods in this interface to process the operation result or handle the exception.
Returns:
A Java Future object containing the response from the ListInstances service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
            final ListInstancesRequest listInstancesRequest,
            final AsyncHandler<ListInstancesRequestListInstancesResultasyncHandler)
                    throws AmazonServiceExceptionAmazonClientException {
        return .submit(new Callable<ListInstancesResult>() {
            public ListInstancesResult call() throws Exception {
              ListInstancesResult result;
                try {
                result = listInstances(listInstancesRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(listInstancesRequestresult);
                 return result;
        }
    });
    }
    
    

AddInstanceGroups adds an instance group to a running cluster.

Parameters:
addInstanceGroupsRequest Container for the necessary parameters to execute the AddInstanceGroups operation on AmazonElasticMapReduce.
Returns:
A Java Future object containing the response from the AddInstanceGroups service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
    public Future<AddInstanceGroupsResultaddInstanceGroupsAsync(final AddInstanceGroupsRequest addInstanceGroupsRequest
            throws AmazonServiceExceptionAmazonClientException {
        return .submit(new Callable<AddInstanceGroupsResult>() {
            public AddInstanceGroupsResult call() throws Exception {
                return addInstanceGroups(addInstanceGroupsRequest);
        }
    });
    }

    

AddInstanceGroups adds an instance group to a running cluster.

Parameters:
addInstanceGroupsRequest Container for the necessary parameters to execute the AddInstanceGroups operation on AmazonElasticMapReduce.
asyncHandler Asynchronous callback handler for events in the life-cycle of the request. Users could provide the implementation of the four callback methods in this interface to process the operation result or handle the exception.
Returns:
A Java Future object containing the response from the AddInstanceGroups service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
            final AddInstanceGroupsRequest addInstanceGroupsRequest,
            final AsyncHandler<AddInstanceGroupsRequestAddInstanceGroupsResultasyncHandler)
                    throws AmazonServiceExceptionAmazonClientException {
        return .submit(new Callable<AddInstanceGroupsResult>() {
            public AddInstanceGroupsResult call() throws Exception {
              AddInstanceGroupsResult result;
                try {
                result = addInstanceGroups(addInstanceGroupsRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(addInstanceGroupsRequestresult);
                 return result;
        }
    });
    }
    
    

TerminateJobFlows shuts a list of job flows down. When a job flow is shut down, any step not yet completed is canceled and the EC2 instances on which the job flow is running are stopped. Any log files not already saved are uploaded to Amazon S3 if a LogUri was specified when the job flow was created.

The maximum number of JobFlows allowed is 10. The call to TerminateJobFlows is asynchronous. Depending on the configuration of the job flow, it may take up to 5-20 minutes for the job flow to completely terminate and release allocated resources, such as Amazon EC2 instances.

Parameters:
terminateJobFlowsRequest Container for the necessary parameters to execute the TerminateJobFlows operation on AmazonElasticMapReduce.
Returns:
A Java Future object containing the response from the TerminateJobFlows service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
    public Future<VoidterminateJobFlowsAsync(final TerminateJobFlowsRequest terminateJobFlowsRequest
            throws AmazonServiceExceptionAmazonClientException {
        return .submit(new Callable<Void>() {
            public Void call() throws Exception {
                terminateJobFlows(terminateJobFlowsRequest);
                return null;
        }
    });
    }

    

TerminateJobFlows shuts a list of job flows down. When a job flow is shut down, any step not yet completed is canceled and the EC2 instances on which the job flow is running are stopped. Any log files not already saved are uploaded to Amazon S3 if a LogUri was specified when the job flow was created.

The maximum number of JobFlows allowed is 10. The call to TerminateJobFlows is asynchronous. Depending on the configuration of the job flow, it may take up to 5-20 minutes for the job flow to completely terminate and release allocated resources, such as Amazon EC2 instances.

Parameters:
terminateJobFlowsRequest Container for the necessary parameters to execute the TerminateJobFlows operation on AmazonElasticMapReduce.
asyncHandler Asynchronous callback handler for events in the life-cycle of the request. Users could provide the implementation of the four callback methods in this interface to process the operation result or handle the exception.
Returns:
A Java Future object containing the response from the TerminateJobFlows service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
            final TerminateJobFlowsRequest terminateJobFlowsRequest,
            final AsyncHandler<TerminateJobFlowsRequestVoidasyncHandler)
                    throws AmazonServiceExceptionAmazonClientException {
        return .submit(new Callable<Void>() {
            public Void call() throws Exception {
              try {
                terminateJobFlows(terminateJobFlowsRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(terminateJobFlowsRequestnull);
                 return null;
        }
    });
    }
    
    

SetTerminationProtection locks a job flow so the Amazon EC2 instances in the cluster cannot be terminated by user intervention, an API call, or in the event of a job-flow error. The cluster still terminates upon successful completion of the job flow. Calling SetTerminationProtection on a job flow is analogous to calling the Amazon EC2 DisableAPITermination API on all of the EC2 instances in a cluster.

SetTerminationProtection is used to prevent accidental termination of a job flow and to ensure that in the event of an error, the instances will persist so you can recover any data stored in their ephemeral instance storage.

To terminate a job flow that has been locked by setting SetTerminationProtection to true , you must first unlock the job flow by a subsequent call to SetTerminationProtection in which you set the value to false .

For more information, go to Protecting a Job Flow from Termination in the Amazon Elastic MapReduce Developer's Guide.

Parameters:
setTerminationProtectionRequest Container for the necessary parameters to execute the SetTerminationProtection operation on AmazonElasticMapReduce.
Returns:
A Java Future object containing the response from the SetTerminationProtection service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
    public Future<VoidsetTerminationProtectionAsync(final SetTerminationProtectionRequest setTerminationProtectionRequest
            throws AmazonServiceExceptionAmazonClientException {
        return .submit(new Callable<Void>() {
            public Void call() throws Exception {
                setTerminationProtection(setTerminationProtectionRequest);
                return null;
        }
    });
    }

    

SetTerminationProtection locks a job flow so the Amazon EC2 instances in the cluster cannot be terminated by user intervention, an API call, or in the event of a job-flow error. The cluster still terminates upon successful completion of the job flow. Calling SetTerminationProtection on a job flow is analogous to calling the Amazon EC2 DisableAPITermination API on all of the EC2 instances in a cluster.

SetTerminationProtection is used to prevent accidental termination of a job flow and to ensure that in the event of an error, the instances will persist so you can recover any data stored in their ephemeral instance storage.

To terminate a job flow that has been locked by setting SetTerminationProtection to true , you must first unlock the job flow by a subsequent call to SetTerminationProtection in which you set the value to false .

For more information, go to Protecting a Job Flow from Termination in the Amazon Elastic MapReduce Developer's Guide.

Parameters:
setTerminationProtectionRequest Container for the necessary parameters to execute the SetTerminationProtection operation on AmazonElasticMapReduce.
asyncHandler Asynchronous callback handler for events in the life-cycle of the request. Users could provide the implementation of the four callback methods in this interface to process the operation result or handle the exception.
Returns:
A Java Future object containing the response from the SetTerminationProtection service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
            final SetTerminationProtectionRequest setTerminationProtectionRequest,
            final AsyncHandler<SetTerminationProtectionRequestVoidasyncHandler)
                    throws AmazonServiceExceptionAmazonClientException {
        return .submit(new Callable<Void>() {
            public Void call() throws Exception {
              try {
                setTerminationProtection(setTerminationProtectionRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(setTerminationProtectionRequestnull);
                 return null;
        }
    });
    }
    
    

This API is deprecated and will eventually be removed. We recommend you use ListClusters, DescribeCluster, ListSteps, ListInstanceGroups and ListBootstrapActions instead.

DescribeJobFlows returns a list of job flows that match all of the supplied parameters. The parameters can include a list of job flow IDs, job flow states, and restrictions on job flow creation date and time.

Regardless of supplied parameters, only job flows created within the last two months are returned.

If no parameters are supplied, then job flows matching either of the following criteria are returned:

  • Job flows created and completed in the last two weeks
  • Job flows created within the last two months that are in one of the following states: RUNNING , WAITING , SHUTTING_DOWN , STARTING

Amazon Elastic MapReduce can return a maximum of 512 job flow descriptions.

Parameters:
describeJobFlowsRequest Container for the necessary parameters to execute the DescribeJobFlows operation on AmazonElasticMapReduce.
Returns:
A Java Future object containing the response from the DescribeJobFlows service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
    public Future<DescribeJobFlowsResultdescribeJobFlowsAsync(final DescribeJobFlowsRequest describeJobFlowsRequest
            throws AmazonServiceExceptionAmazonClientException {
        return .submit(new Callable<DescribeJobFlowsResult>() {
            public DescribeJobFlowsResult call() throws Exception {
                return describeJobFlows(describeJobFlowsRequest);
        }
    });
    }

    

This API is deprecated and will eventually be removed. We recommend you use ListClusters, DescribeCluster, ListSteps, ListInstanceGroups and ListBootstrapActions instead.

DescribeJobFlows returns a list of job flows that match all of the supplied parameters. The parameters can include a list of job flow IDs, job flow states, and restrictions on job flow creation date and time.

Regardless of supplied parameters, only job flows created within the last two months are returned.

If no parameters are supplied, then job flows matching either of the following criteria are returned:

  • Job flows created and completed in the last two weeks
  • Job flows created within the last two months that are in one of the following states: RUNNING , WAITING , SHUTTING_DOWN , STARTING

Amazon Elastic MapReduce can return a maximum of 512 job flow descriptions.

Parameters:
describeJobFlowsRequest Container for the necessary parameters to execute the DescribeJobFlows operation on AmazonElasticMapReduce.
asyncHandler Asynchronous callback handler for events in the life-cycle of the request. Users could provide the implementation of the four callback methods in this interface to process the operation result or handle the exception.
Returns:
A Java Future object containing the response from the DescribeJobFlows service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
            final DescribeJobFlowsRequest describeJobFlowsRequest,
            final AsyncHandler<DescribeJobFlowsRequestDescribeJobFlowsResultasyncHandler)
                    throws AmazonServiceExceptionAmazonClientException {
        return .submit(new Callable<DescribeJobFlowsResult>() {
            public DescribeJobFlowsResult call() throws Exception {
              DescribeJobFlowsResult result;
                try {
                result = describeJobFlows(describeJobFlowsRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(describeJobFlowsRequestresult);
                 return result;
        }
    });
    }
    
    

RunJobFlow creates and starts running a new job flow. The job flow will run the steps specified. Once the job flow completes, the cluster is stopped and the HDFS partition is lost. To prevent loss of data, configure the last step of the job flow to store results in Amazon S3. If the JobFlowInstancesConfig KeepJobFlowAliveWhenNoSteps parameter is set to TRUE , the job flow will transition to the WAITING state rather than shutting down once the steps have completed.

For additional protection, you can set the JobFlowInstancesConfig TerminationProtected parameter to TRUE to lock the job flow and prevent it from being terminated by API call, user intervention, or in the event of a job flow error.

A maximum of 256 steps are allowed in each job flow.

If your job flow is long-running (such as a Hive data warehouse) or complex, you may require more than 256 steps to process your data. You can bypass the 256-step limitation in various ways, including using the SSH shell to connect to the master node and submitting queries directly to the software running on the master node, such as Hive and Hadoop. For more information on how to do this, go to Add More than 256 Steps to a Job Flow in the Amazon Elastic MapReduce Developer's Guide .

For long running job flows, we recommend that you periodically store your results.

Parameters:
runJobFlowRequest Container for the necessary parameters to execute the RunJobFlow operation on AmazonElasticMapReduce.
Returns:
A Java Future object containing the response from the RunJobFlow service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
    public Future<RunJobFlowResultrunJobFlowAsync(final RunJobFlowRequest runJobFlowRequest
            throws AmazonServiceExceptionAmazonClientException {
        return .submit(new Callable<RunJobFlowResult>() {
            public RunJobFlowResult call() throws Exception {
                return runJobFlow(runJobFlowRequest);
        }
    });
    }

    

RunJobFlow creates and starts running a new job flow. The job flow will run the steps specified. Once the job flow completes, the cluster is stopped and the HDFS partition is lost. To prevent loss of data, configure the last step of the job flow to store results in Amazon S3. If the JobFlowInstancesConfig KeepJobFlowAliveWhenNoSteps parameter is set to TRUE , the job flow will transition to the WAITING state rather than shutting down once the steps have completed.

For additional protection, you can set the JobFlowInstancesConfig TerminationProtected parameter to TRUE to lock the job flow and prevent it from being terminated by API call, user intervention, or in the event of a job flow error.

A maximum of 256 steps are allowed in each job flow.

If your job flow is long-running (such as a Hive data warehouse) or complex, you may require more than 256 steps to process your data. You can bypass the 256-step limitation in various ways, including using the SSH shell to connect to the master node and submitting queries directly to the software running on the master node, such as Hive and Hadoop. For more information on how to do this, go to Add More than 256 Steps to a Job Flow in the Amazon Elastic MapReduce Developer's Guide .

For long running job flows, we recommend that you periodically store your results.

Parameters:
runJobFlowRequest Container for the necessary parameters to execute the RunJobFlow operation on AmazonElasticMapReduce.
asyncHandler Asynchronous callback handler for events in the life-cycle of the request. Users could provide the implementation of the four callback methods in this interface to process the operation result or handle the exception.
Returns:
A Java Future object containing the response from the RunJobFlow service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
            final RunJobFlowRequest runJobFlowRequest,
            final AsyncHandler<RunJobFlowRequestRunJobFlowResultasyncHandler)
                    throws AmazonServiceExceptionAmazonClientException {
        return .submit(new Callable<RunJobFlowResult>() {
            public RunJobFlowResult call() throws Exception {
              RunJobFlowResult result;
                try {
                result = runJobFlow(runJobFlowRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(runJobFlowRequestresult);
                 return result;
        }
    });
    }
    
    

Provides cluster-level details including status, hardware and software configuration, VPC settings, and so on. For information about the cluster steps, see ListSteps.

Parameters:
describeClusterRequest Container for the necessary parameters to execute the DescribeCluster operation on AmazonElasticMapReduce.
Returns:
A Java Future object containing the response from the DescribeCluster service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
    public Future<DescribeClusterResultdescribeClusterAsync(final DescribeClusterRequest describeClusterRequest
            throws AmazonServiceExceptionAmazonClientException {
        return .submit(new Callable<DescribeClusterResult>() {
            public DescribeClusterResult call() throws Exception {
                return describeCluster(describeClusterRequest);
        }
    });
    }

    

Provides cluster-level details including status, hardware and software configuration, VPC settings, and so on. For information about the cluster steps, see ListSteps.

Parameters:
describeClusterRequest Container for the necessary parameters to execute the DescribeCluster operation on AmazonElasticMapReduce.
asyncHandler Asynchronous callback handler for events in the life-cycle of the request. Users could provide the implementation of the four callback methods in this interface to process the operation result or handle the exception.
Returns:
A Java Future object containing the response from the DescribeCluster service method, as returned by AmazonElasticMapReduce.
Throws:
com.amazonaws.AmazonClientException If any internal errors are encountered inside the client while attempting to make the request or handle the response. For example if a network connection is not available.
com.amazonaws.AmazonServiceException If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
            final DescribeClusterRequest describeClusterRequest,
            final AsyncHandler<DescribeClusterRequestDescribeClusterResultasyncHandler)
                    throws AmazonServiceExceptionAmazonClientException {
        return .submit(new Callable<DescribeClusterResult>() {
            public DescribeClusterResult call() throws Exception {
              DescribeClusterResult result;
                try {
                result = describeCluster(describeClusterRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(describeClusterRequestresult);
                 return result;
        }
    });
    }
    
}
        
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