class AWS::EMR
Provides an expressive, object-oriented interface to Amazon Elastic MapReduce.
To use Amazon Elastic MapReduce you must first [sign up here](aws.amazon.com/elasticmapreduce/)
For more information about Amazon Elastic MapReduce, see:
-
[Amazon Elastic MapReduce](aws.amazon.com/elasticmapreduce/)
-
[Amazon Elastic MapReduce Documentation](aws.amazon.com/documentation/elasticmapreduce/)
## Credentials
You can setup default credentials for all AWS services via AWS.config:
AWS.config( :access_key_id => 'YOUR_ACCESS_KEY_ID', :secret_access_key => 'YOUR_SECRET_ACCESS_KEY')
Or you can set them directly on the EMR interface:
emr = AWS::EMR.new( :access_key_id => 'YOUR_ACCESS_KEY_ID', :secret_access_key => 'YOUR_SECRET_ACCESS_KEY')
# Job Flows
The {#job_flows} method returns a collection you use to interact with your job flows.
emr = AWS::EMR.new # creating a job flow job_flow = emr.job_flows.create(...) # enumerating job flows emr.job_flows.each do |job_flow| puts job_flow.id end
See {JobFlowCollection} and {JobFlow} for more information on working with job flows.
@!attribute [r] client
@return [Client] the low-level EMR client object
Public Instance Methods
@return [JobFlowCollection] Returns a collection that represents all
job flows.
# File lib/aws/emr.rb, line 81 def job_flows JobFlowCollection.new(:config => config) end