elastic-mapreduce --describe output

gistfile1.txt

{
  "JobFlows": [
    {
      "LogUri": "s3n:\/\/somebucket.yourcompany.com\/logs\/",
      "Name": "test1",
      "BootstrapActions": [],
      "SupportedProducts": [],
      "ExecutionStatusDetail": {
        "EndDateTime": null,
        "CreationDateTime": 1320167627.0,
        "LastStateChangeReason": "Waiting after step completed",
        "State": "WAITING",
        "StartDateTime": 1320167818.0,
        "ReadyDateTime": 1320167818.0
      },
      "Steps": [
        {
          "StepConfig": {
            "ActionOnFailure": "TERMINATE_JOB_FLOW",
            "Name": "Setup Hive",
            "HadoopJarStep": {
              "MainClass": null,
              "Jar": "s3:\/\/us-east-1.elasticmapreduce\/libs\/script-runner\/script-runner.jar",
              "Args": [
                "s3:\/\/us-east-1.elasticmapreduce\/libs\/hive\/hive-script",
                "--base-path",
                "s3:\/\/us-east-1.elasticmapreduce\/libs\/hive\/",
                "--install-hive",
                "--hive-versions",
                "0.7.1"
              ],
              "Properties": []
            }
          },
          "ExecutionStatusDetail": {
            "EndDateTime": 1320167842.0,
            "CreationDateTime": 1320167627.0,
            "LastStateChangeReason": null,
            "State": "COMPLETED",
            "StartDateTime": 1320167818.0
          }
        }
      ],
      "AmiVersion": null,
      "JobFlowId": "j-SOMEID",
      "Instances": {
        "Ec2KeyName": "privatekey",
        "InstanceCount": 4,
        "NormalizedInstanceHours": 1984,
        "Placement": {
          "AvailabilityZone": "us-east-1a"
        },
        "KeepJobFlowAliveWhenNoSteps": true,
        "SlaveInstanceType": "m1.xlarge",
        "MasterInstanceType": "m1.xlarge",
        "MasterPublicDnsName": "ec2-A.B.C.D.compute-1.amazonaws.com",
        "MasterInstanceId": "i-INSTANCEID",
        "InstanceGroups": [
          {
            "EndDateTime": null,
            "Name": "Master Instance Group",
            "InstanceRole": "MASTER",
            "BidPrice": null,
            "CreationDateTime": 1320167627.0,
            "LaunchGroup": null,
            "LastStateChangeReason": "",
            "InstanceGroupId": "ig-GROUPID1",
            "State": "RUNNING",
            "Market": "ON_DEMAND",
            "InstanceType": "m1.xlarge",
            "StartDateTime": 1320167761.0,
            "InstanceRunningCount": 1,
            "ReadyDateTime": 1320167816.0,
            "InstanceRequestCount": 1
          },
          {
            "EndDateTime": null,
            "Name": "Core Instance Group",
            "InstanceRole": "CORE",
            "BidPrice": null,
            "CreationDateTime": 1320167627.0,
            "LaunchGroup": null,
            "LastStateChangeReason": "Resizing complete",
            "InstanceGroupId": "ig-GROUPID2",
            "State": "RUNNING",
            "Market": "ON_DEMAND",
            "InstanceType": "m1.xlarge",
            "StartDateTime": 1320167818.0,
            "InstanceRunningCount": 3,
            "ReadyDateTime": 1320167818.0,
            "InstanceRequestCount": 3
          }
        ],
        "TerminationProtected": false,
        "HadoopVersion": "0.20"
      }
    }
  ]
}