Class BootstrapActions
java.lang.Object
com.amazonaws.services.elasticmapreduce.util.BootstrapActions
Class that provides helper methods for constructing predefined bootstrap actions.
AWSCredentials credentials = new BasicAWSCredentials(accessKey, secretKey); AmazonElasticMapReduce emr = new AmazonElasticMapReduceClient(credentials); BootstrapActions bootstrapActions = new BootstrapActions(); RunJobFlowRequest request = new RunJobFlowRequest() .withName("Job Flow With Bootstrap Actions") .withBootstrapActions( bootstrapActions.newRunIf( "instance.isMaster=true", bootstrapActions.newConfigureDaemons() .withHeapSize(Daemon.JobTracker, 2048) .build())) .withLogUri("s3://log-bucket/") .withInstances(new JobFlowInstancesConfig() .withEc2KeyName("keypair") .withHadoopVersion("0.20") .withInstanceCount(5) .withKeepJobFlowAliveWhenNoSteps(true) .withMasterInstanceType("m1.small") .withSlaveInstanceType("m1.small")); RunJobFlowResult result = emr.runJobFlow(request);
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Nested Class Summary
Nested ClassesModifier and TypeClassDescriptionstatic enum
Enum specifying all valid config files.class
class
Deprecated.static enum
List of Hadoop daemons which can be configured. -
Constructor Summary
ConstructorsConstructorDescriptionCreates a new default BootstrapActions for us in us-east-1.BootstrapActions
(String bucket) Creates a new BootstrapActions. -
Method Summary
Modifier and TypeMethodDescriptionCreate a new bootstrap action which lets you configure Hadoop's daemons.Create a new bootstrap action which lets you configure Hadoop's XML files.newRunIf
(String condition, BootstrapActionConfig config) Create a new run-if bootstrap action which lets you conditionally run bootstrap actions.
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Constructor Details
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BootstrapActions
public BootstrapActions()Creates a new default BootstrapActions for us in us-east-1. -
BootstrapActions
Creates a new BootstrapActions.- Parameters:
bucket
- the bucket from which to download the bootstrap actions.
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Method Details
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newRunIf
Create a new run-if bootstrap action which lets you conditionally run bootstrap actions.- Parameters:
condition
- The condition to evaluate, if true the bootstrap action executes.config
- The bootstrap action to execute in case of successful evaluation.- Returns:
- A BootstrapActionConfig to be provided when running a job flow.
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newConfigureHadoop
Create a new bootstrap action which lets you configure Hadoop's XML files. ConfigureHadoop is deprecated. Useinvalid reference
.elasticmapreduce.model.RunJobFlowRequest#setConfigurations
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newConfigureDaemons
Create a new bootstrap action which lets you configure Hadoop's daemons. The options are written to the hadoop-user-env.sh file.
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