Important This setting has not worked in past 4x releases of EMR Please use

Important this setting has not worked in past 4x

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Important This setting has not worked in past 4.x releases of EMR. Please use releases greater than 4.3.0 if you want to configure this option. To enable log aggregation create the following configuration file, myConfig.json , which contains the following: [ { "Classification": "yarn-site", "Properties": { "yarn.log-aggregation-enable": "true", "yarn.log-aggregation.retain-seconds": "-1", "yarn.nodemanager.remote-app-log-dir": "s3:\/\/mybucket\/logs" } } ] Type the following command and replace myKey with the name of your EC2 key pair. aws emr create-cluster --name "Test cluster" --release-label emr-4.5.0 --applications Name=Hadoop --use-default-roles --ec2-attributes KeyName=myKey --instance-type m5.xlarge --instance-count 3 --configurations When you specify the instance count without using the --instance-groups parameter, a single Master node is launched, and the remaining instances are launched as core nodes. All nodes will use the instance type specified in the command. Note If you have not previously created the default EMR service role and EC2 instance profile, type aws emr create-default-roles to create them before typing the create- cluster subcommand. For more information on using Amazon EMR commands in the AWS CLI, see https:// . Enable the Debugging Tool The debugging tool allows you to more easily browse log files from the EMR console. For more information, see View Log Files in the Debugging Tool (p. 286) . When you enable debugging on a 138
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Amazon EMR Management Guide Enable the Debugging Tool cluster, Amazon EMR archives the log files to Amazon S3 and then indexes those files. You can then use the console to browse the step, job, task, and task-attempt logs for the cluster in an intuitive way. To use the debugging tool in the EMR console, you must enable debugging when you launch the cluster using the console, the CLI, or the API. To enable the debugging tool using the Amazon EMR console 1. Open the Amazon EMR console at . 2. Choose Create cluster . 3. Choose Go to advanced options . 4. In the Cluster Configuration section, in the Logging field, choose Enabled . You cannot enable debugging without enabling logging. 5. In the Log folder S3 location field, type an Amazon S3 path to store your logs. 6. In the Debugging field, choose Enabled . The debugging option creates an Amazon SQS exchange to publish debugging messages to the Amazon EMR service backend. Charges for publishing messages to the exchange may apply. For more information, see . 7. Proceed with creating the cluster as described in Plan and Configure Clusters (p. 37) . To enable the debugging tool using the AWS CLI To enable debugging using the AWS CLI, type the create-cluster subcommand with the --enable- debugging parameter. You must also specify the --log-uri parameter when enabling debugging.
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  • Spring '12
  • LauraParker
  • Amazon Web Services, Amazon Elastic Compute Cloud

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