AmazonElasticMapReduceAsyncClient (AWS SDK for Java

java.lang.Object
- com.amazonaws.AmazonWebServiceClient
- - com.amazonaws.services.elasticmapreduce.AmazonElasticMapReduceClient
  - - com.amazonaws.services.elasticmapreduce.AmazonElasticMapReduceAsyncClient

All Implemented Interfaces:

AmazonElasticMapReduce, AmazonElasticMapReduceAsync
```
public class AmazonElasticMapReduceAsyncClient
extends AmazonElasticMapReduceClient
implements AmazonElasticMapReduceAsync
```
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.
This is the Amazon Elastic MapReduce API Reference . This guide provides descriptions and samples of the Amazon Elastic MapReduce APIs.

Amazon Elastic MapReduce is a web service that makes it easy to process large amounts of data efficiently. Elastic MapReduce 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.

Constructor Summary

Constructors
Constructor and Description
`AmazonElasticMapReduceAsyncClient()` Constructs a new asynchronous client to invoke service methods on AmazonElasticMapReduce.
`AmazonElasticMapReduceAsyncClient(AWSCredentials awsCredentials)` Constructs a new asynchronous client to invoke service methods on AmazonElasticMapReduce using the specified AWS account credentials.
`AmazonElasticMapReduceAsyncClient(AWSCredentials awsCredentials, ClientConfiguration clientConfiguration, ExecutorService executorService)` Constructs a new asynchronous client to invoke service methods on AmazonElasticMapReduce using the specified AWS account credentials, executor service, and client configuration options.
`AmazonElasticMapReduceAsyncClient(AWSCredentials awsCredentials, ExecutorService executorService)` Constructs a new asynchronous client to invoke service methods on AmazonElasticMapReduce using the specified AWS account credentials and executor service.
`AmazonElasticMapReduceAsyncClient(AWSCredentialsProvider awsCredentialsProvider)` Constructs a new asynchronous client to invoke service methods on AmazonElasticMapReduce using the specified AWS account credentials provider.
`AmazonElasticMapReduceAsyncClient(AWSCredentialsProvider awsCredentialsProvider, ClientConfiguration clientConfiguration)` Constructs a new asynchronous client to invoke service methods on AmazonElasticMapReduce using the specified AWS account credentials provider and client configuration options.
`AmazonElasticMapReduceAsyncClient(AWSCredentialsProvider awsCredentialsProvider, ClientConfiguration clientConfiguration, ExecutorService executorService)` Constructs a new asynchronous client to invoke service methods on AmazonElasticMapReduce using the specified AWS account credentials provider, executor service, and client configuration options.
`AmazonElasticMapReduceAsyncClient(AWSCredentialsProvider awsCredentialsProvider, ExecutorService executorService)` Constructs a new asynchronous client to invoke service methods on AmazonElasticMapReduce using the specified AWS account credentials provider and executor service.
`AmazonElasticMapReduceAsyncClient(ClientConfiguration clientConfiguration)` Constructs a new asynchronous client to invoke service methods on AmazonElasticMapReduce.

Method Summary

Methods
Modifier and Type	Method and Description
`Future<AddInstanceGroupsResult>`	`addInstanceGroupsAsync(AddInstanceGroupsRequest addInstanceGroupsRequest)` AddInstanceGroups adds an instance group to a running cluster.
`Future<AddInstanceGroupsResult>`	`addInstanceGroupsAsync(AddInstanceGroupsRequest addInstanceGroupsRequest, AsyncHandler<AddInstanceGroupsRequest,AddInstanceGroupsResult> asyncHandler)` AddInstanceGroups adds an instance group to a running cluster.
`Future<Void>`	`addJobFlowStepsAsync(AddJobFlowStepsRequest addJobFlowStepsRequest)` AddJobFlowSteps adds new steps to a running job flow.
`Future<Void>`	`addJobFlowStepsAsync(AddJobFlowStepsRequest addJobFlowStepsRequest, AsyncHandler<AddJobFlowStepsRequest,Void> asyncHandler)` AddJobFlowSteps adds new steps to a running job flow.
`Future<DescribeJobFlowsResult>`	`describeJobFlowsAsync(DescribeJobFlowsRequest describeJobFlowsRequest)` DescribeJobFlows returns a list of job flows that match all of the supplied parameters.
`Future<DescribeJobFlowsResult>`	`describeJobFlowsAsync(DescribeJobFlowsRequest describeJobFlowsRequest, AsyncHandler<DescribeJobFlowsRequest,DescribeJobFlowsResult> asyncHandler)` DescribeJobFlows returns a list of job flows that match all of the supplied parameters.
`ExecutorService`	`getExecutorService()` Returns the executor service used by this async client to execute requests.
`Future<Void>`	`modifyInstanceGroupsAsync(ModifyInstanceGroupsRequest modifyInstanceGroupsRequest)` ModifyInstanceGroups modifies the number of nodes and configuration settings of an instance group.
`Future<Void>`	`modifyInstanceGroupsAsync(ModifyInstanceGroupsRequest modifyInstanceGroupsRequest, AsyncHandler<ModifyInstanceGroupsRequest,Void> asyncHandler)` ModifyInstanceGroups modifies the number of nodes and configuration settings of an instance group.
`Future<RunJobFlowResult>`	`runJobFlowAsync(RunJobFlowRequest runJobFlowRequest)` RunJobFlow creates and starts running a new job flow.
`Future<RunJobFlowResult>`	`runJobFlowAsync(RunJobFlowRequest runJobFlowRequest, AsyncHandler<RunJobFlowRequest,RunJobFlowResult> asyncHandler)` RunJobFlow creates and starts running a new job flow.
`Future<Void>`	`setTerminationProtectionAsync(SetTerminationProtectionRequest setTerminationProtectionRequest)` 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.
`Future<Void>`	`setTerminationProtectionAsync(SetTerminationProtectionRequest setTerminationProtectionRequest, AsyncHandler<SetTerminationProtectionRequest,Void> asyncHandler)` 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.
`Future<Void>`	`setVisibleToAllUsersAsync(SetVisibleToAllUsersRequest setVisibleToAllUsersRequest)` Sets whether all AWS Identity and Access Management (IAM) users under your account can access the specifed job flows.
`Future<Void>`	`setVisibleToAllUsersAsync(SetVisibleToAllUsersRequest setVisibleToAllUsersRequest, AsyncHandler<SetVisibleToAllUsersRequest,Void> asyncHandler)` Sets whether all AWS Identity and Access Management (IAM) users under your account can access the specifed job flows.
`void`	`shutdown()` Shuts down the client, releasing all managed resources.
`Future<Void>`	`terminateJobFlowsAsync(TerminateJobFlowsRequest terminateJobFlowsRequest)` TerminateJobFlows shuts a list of job flows down.
`Future<Void>`	`terminateJobFlowsAsync(TerminateJobFlowsRequest terminateJobFlowsRequest, AsyncHandler<TerminateJobFlowsRequest,Void> asyncHandler)` TerminateJobFlows shuts a list of job flows down.

Methods inherited from class com.amazonaws.services.elasticmapreduce.AmazonElasticMapReduceClient
addInstanceGroups, addJobFlowSteps, describeJobFlows, describeJobFlows, getCachedResponseMetadata, modifyInstanceGroups, modifyInstanceGroups, runJobFlow, setEndpoint, setTerminationProtection, setVisibleToAllUsers, terminateJobFlows

Methods inherited from class com.amazonaws.AmazonWebServiceClient
addRequestHandler, getRequestMetricsCollector, getTimeOffset, removeRequestHandler, setConfiguration, setEndpoint, setRegion, setTimeOffset, withTimeOffset

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.amazonaws.services.elasticmapreduce.AmazonElasticMapReduce
addInstanceGroups, addJobFlowSteps, describeJobFlows, describeJobFlows, getCachedResponseMetadata, modifyInstanceGroups, modifyInstanceGroups, runJobFlow, setEndpoint, setRegion, setTerminationProtection, setVisibleToAllUsers, terminateJobFlows

- Constructor Detail
  - AmazonElasticMapReduceAsyncClient
```
public AmazonElasticMapReduceAsyncClient()
```
    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.
    See Also:
    DefaultAWSCredentialsProviderChain
  - AmazonElasticMapReduceAsyncClient
```
public AmazonElasticMapReduceAsyncClient(ClientConfiguration clientConfiguration)
```
    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:
    DefaultAWSCredentialsProviderChain
  - AmazonElasticMapReduceAsyncClient
```
public AmazonElasticMapReduceAsyncClient(AWSCredentials awsCredentials)
```
    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 default cached 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.
  - AmazonElasticMapReduceAsyncClient
```
public AmazonElasticMapReduceAsyncClient(AWSCredentials awsCredentials,
                                 ExecutorService executorService)
```
    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.
  - AmazonElasticMapReduceAsyncClient
```
public AmazonElasticMapReduceAsyncClient(AWSCredentials awsCredentials,
                                 ClientConfiguration clientConfiguration,
                                 ExecutorService 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.
  - AmazonElasticMapReduceAsyncClient
```
public AmazonElasticMapReduceAsyncClient(AWSCredentialsProvider awsCredentialsProvider)
```
    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 default cached 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.
  - AmazonElasticMapReduceAsyncClient
```
public AmazonElasticMapReduceAsyncClient(AWSCredentialsProvider awsCredentialsProvider,
                                 ExecutorService executorService)
```
    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.
  - AmazonElasticMapReduceAsyncClient
```
public AmazonElasticMapReduceAsyncClient(AWSCredentialsProvider awsCredentialsProvider,
                                 ClientConfiguration clientConfiguration)
```
    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).
  - AmazonElasticMapReduceAsyncClient
```
public AmazonElasticMapReduceAsyncClient(AWSCredentialsProvider awsCredentialsProvider,
                                 ClientConfiguration clientConfiguration,
                                 ExecutorService executorService)
```
    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.
- Method Detail
  - getExecutorService
```
public ExecutorService getExecutorService()
```
    Returns the executor service used by this async client to execute requests.
    
    Returns:
    The executor service used by this async client to execute requests.
  - shutdown
```
public void shutdown()
```
    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() prior to calling this method.
    
    Specified by:
    
    shutdown in interface AmazonElasticMapReduce
    
    Overrides:
    
    shutdown in class AmazonWebServiceClient
  - setVisibleToAllUsersAsync
```
public Future<Void> setVisibleToAllUsersAsync(SetVisibleToAllUsersRequest setVisibleToAllUsersRequest)
                                       throws AmazonServiceException,
                                              AmazonClientException
```
    Sets whether all AWS Identity and Access Management (IAM) users under your account can access the specifed 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.
    
    Specified by:
    
    setVisibleToAllUsersAsync in interface AmazonElasticMapReduceAsync
    
    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:
    
    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.
    
    AmazonServiceException - If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
  - setVisibleToAllUsersAsync
```
public Future<Void> setVisibleToAllUsersAsync(SetVisibleToAllUsersRequest setVisibleToAllUsersRequest,
                                     AsyncHandler<SetVisibleToAllUsersRequest,Void> asyncHandler)
                                       throws AmazonServiceException,
                                              AmazonClientException
```
    Sets whether all AWS Identity and Access Management (IAM) users under your account can access the specifed 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.
    
    Specified by:
    
    setVisibleToAllUsersAsync in interface AmazonElasticMapReduceAsync
    
    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:
    
    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.
    
    AmazonServiceException - If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
  - addInstanceGroupsAsync
```
public Future<AddInstanceGroupsResult> addInstanceGroupsAsync(AddInstanceGroupsRequest addInstanceGroupsRequest)
                                                       throws AmazonServiceException,
                                                              AmazonClientException
```
    AddInstanceGroups adds an instance group to a running cluster.
    
    Specified by:
    
    addInstanceGroupsAsync in interface AmazonElasticMapReduceAsync
    
    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:
    
    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.
    
    AmazonServiceException - If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
  - addInstanceGroupsAsync
```
public Future<AddInstanceGroupsResult> addInstanceGroupsAsync(AddInstanceGroupsRequest addInstanceGroupsRequest,
                                                     AsyncHandler<AddInstanceGroupsRequest,AddInstanceGroupsResult> asyncHandler)
                                                       throws AmazonServiceException,
                                                              AmazonClientException
```
    AddInstanceGroups adds an instance group to a running cluster.
    
    Specified by:
    
    addInstanceGroupsAsync in interface AmazonElasticMapReduceAsync
    
    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:
    
    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.
    
    AmazonServiceException - If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
  - addJobFlowStepsAsync
```
public Future<Void> addJobFlowStepsAsync(AddJobFlowStepsRequest addJobFlowStepsRequest)
                                  throws AmazonServiceException,
                                         AmazonClientException
```
    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.
    
    Specified by:
    
    addJobFlowStepsAsync in interface AmazonElasticMapReduceAsync
    
    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:
    
    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.
    
    AmazonServiceException - If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
  - addJobFlowStepsAsync
```
public Future<Void> addJobFlowStepsAsync(AddJobFlowStepsRequest addJobFlowStepsRequest,
                                AsyncHandler<AddJobFlowStepsRequest,Void> asyncHandler)
                                  throws AmazonServiceException,
                                         AmazonClientException
```
    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.
    
    Specified by:
    
    addJobFlowStepsAsync in interface AmazonElasticMapReduceAsync
    
    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:
    
    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.
    
    AmazonServiceException - If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
  - terminateJobFlowsAsync
```
public Future<Void> terminateJobFlowsAsync(TerminateJobFlowsRequest terminateJobFlowsRequest)
                                    throws AmazonServiceException,
                                           AmazonClientException
```
    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 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.
    
    Specified by:
    
    terminateJobFlowsAsync in interface AmazonElasticMapReduceAsync
    
    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:
    
    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.
    
    AmazonServiceException - If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
  - terminateJobFlowsAsync
```
public Future<Void> terminateJobFlowsAsync(TerminateJobFlowsRequest terminateJobFlowsRequest,
                                  AsyncHandler<TerminateJobFlowsRequest,Void> asyncHandler)
                                    throws AmazonServiceException,
                                           AmazonClientException
```
    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 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.
    
    Specified by:
    
    terminateJobFlowsAsync in interface AmazonElasticMapReduceAsync
    
    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:
    
    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.
    
    AmazonServiceException - If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
  - describeJobFlowsAsync
```
public Future<DescribeJobFlowsResult> describeJobFlowsAsync(DescribeJobFlowsRequest describeJobFlowsRequest)
                                                     throws AmazonServiceException,
                                                            AmazonClientException
```
    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.
    Specified by:
    
    describeJobFlowsAsync in interface AmazonElasticMapReduceAsync
    
    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:
    
    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.
    
    AmazonServiceException - If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
  - describeJobFlowsAsync
```
public Future<DescribeJobFlowsResult> describeJobFlowsAsync(DescribeJobFlowsRequest describeJobFlowsRequest,
                                                   AsyncHandler<DescribeJobFlowsRequest,DescribeJobFlowsResult> asyncHandler)
                                                     throws AmazonServiceException,
                                                            AmazonClientException
```
    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.
    Specified by:
    
    describeJobFlowsAsync in interface AmazonElasticMapReduceAsync
    
    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:
    
    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.
    
    AmazonServiceException - If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
  - setTerminationProtectionAsync
```
public Future<Void> setTerminationProtectionAsync(SetTerminationProtectionRequest setTerminationProtectionRequest)
                                           throws AmazonServiceException,
                                                  AmazonClientException
```
    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.
    
    Specified by:
    
    setTerminationProtectionAsync in interface AmazonElasticMapReduceAsync
    
    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:
    
    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.
    
    AmazonServiceException - If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
  - setTerminationProtectionAsync
```
public Future<Void> setTerminationProtectionAsync(SetTerminationProtectionRequest setTerminationProtectionRequest,
                                         AsyncHandler<SetTerminationProtectionRequest,Void> asyncHandler)
                                           throws AmazonServiceException,
                                                  AmazonClientException
```
    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.
    
    Specified by:
    
    setTerminationProtectionAsync in interface AmazonElasticMapReduceAsync
    
    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:
    
    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.
    
    AmazonServiceException - If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
  - runJobFlowAsync
```
public Future<RunJobFlowResult> runJobFlowAsync(RunJobFlowRequest runJobFlowRequest)
                                         throws AmazonServiceException,
                                                AmazonClientException
```
    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.
    
    Specified by:
    
    runJobFlowAsync in interface AmazonElasticMapReduceAsync
    
    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:
    
    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.
    
    AmazonServiceException - If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
  - runJobFlowAsync
```
public Future<RunJobFlowResult> runJobFlowAsync(RunJobFlowRequest runJobFlowRequest,
                                       AsyncHandler<RunJobFlowRequest,RunJobFlowResult> asyncHandler)
                                         throws AmazonServiceException,
                                                AmazonClientException
```
    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.
    
    Specified by:
    
    runJobFlowAsync in interface AmazonElasticMapReduceAsync
    
    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:
    
    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.
    
    AmazonServiceException - If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
  - modifyInstanceGroupsAsync
```
public Future<Void> modifyInstanceGroupsAsync(ModifyInstanceGroupsRequest modifyInstanceGroupsRequest)
                                       throws AmazonServiceException,
                                              AmazonClientException
```
    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.
    
    Specified by:
    
    modifyInstanceGroupsAsync in interface AmazonElasticMapReduceAsync
    
    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:
    
    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.
    
    AmazonServiceException - If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.
  - modifyInstanceGroupsAsync
```
public Future<Void> modifyInstanceGroupsAsync(ModifyInstanceGroupsRequest modifyInstanceGroupsRequest,
                                     AsyncHandler<ModifyInstanceGroupsRequest,Void> asyncHandler)
                                       throws AmazonServiceException,
                                              AmazonClientException
```
    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.
    
    Specified by:
    
    modifyInstanceGroupsAsync in interface AmazonElasticMapReduceAsync
    
    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:
    
    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.
    
    AmazonServiceException - If an error response is returned by AmazonElasticMapReduce indicating either a problem with the data in the request, or a server side issue.

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Class AmazonElasticMapReduceAsyncClient

Constructor Summary

Method Summary

Methods inherited from class com.amazonaws.services.elasticmapreduce.AmazonElasticMapReduceClient

Methods inherited from class com.amazonaws.AmazonWebServiceClient

Methods inherited from class java.lang.Object

Methods inherited from interface com.amazonaws.services.elasticmapreduce.AmazonElasticMapReduce

Constructor Detail

AmazonElasticMapReduceAsyncClient

AmazonElasticMapReduceAsyncClient

AmazonElasticMapReduceAsyncClient

AmazonElasticMapReduceAsyncClient

AmazonElasticMapReduceAsyncClient

AmazonElasticMapReduceAsyncClient

AmazonElasticMapReduceAsyncClient

AmazonElasticMapReduceAsyncClient

AmazonElasticMapReduceAsyncClient

Method Detail

getExecutorService

shutdown

setVisibleToAllUsersAsync

setVisibleToAllUsersAsync

addInstanceGroupsAsync

addInstanceGroupsAsync

addJobFlowStepsAsync

addJobFlowStepsAsync

terminateJobFlowsAsync

terminateJobFlowsAsync

describeJobFlowsAsync

describeJobFlowsAsync

setTerminationProtectionAsync

setTerminationProtectionAsync

runJobFlowAsync

runJobFlowAsync

modifyInstanceGroupsAsync

modifyInstanceGroupsAsync