ambari/ambari-web/app/assets/data/wizard/upgrade/poll_5.json

{
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  "Requests" : {
    "id" : 1
  },
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      "href" : "http://localhost:8080/api/clusters/mycluster/requests/1/tasks/1",
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        "status" : "COMPLETED",
        "command" : "UPGRADE",
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        "role" : "GANGLIA_SERVER",
        "stderr" : "",
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      }
    },
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        "status" : "COMPLETED",
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        "stderr" : "",
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      }
    },
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      "Tasks" : {
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        "stderr" : "",
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      "href" : "http://localhost:8080/api/clusters/mycluster/requests/1/tasks/3",
      "Tasks" : {
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        "attempt_cnt" : "0",
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        "status" : "FAILED",
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        "stderr" : "",
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      }
    },
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      "href" : "http://localhost:8080/api/clusters/mycluster/requests/1/tasks/2",
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        "status" : "COMPLETED",
        "command" : "UPGRADE",
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        "stderr" : "",
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      }
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      "href" : "http://localhost:8080/api/clusters/mycluster/requests/1/tasks/3",
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    },
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      "href" : "http://localhost:8080/api/clusters/mycluster/requests/1/tasks/3",
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      }
    },
    {
      "href" : "http://localhost:8080/api/clusters/mycluster/requests/1/tasks/3",
      "Tasks" : {
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        "attempt_cnt" : "0",
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        "command" : "UPGRADE",
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        "stderr" : "",
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      }
    },
    {
      "href" : "http://localhost:8080/api/clusters/mycluster/requests/1/tasks/3",
      "Tasks" : {
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    },
    {
      "href" : "http://localhost:8080/api/clusters/mycluster/requests/1/tasks/3",
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      "href" : "http://localhost:8080/api/clusters/mycluster/requests/1/tasks/3",
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        "attempt_cnt" : "0",
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        "stage_id" : "1"
      }
    }
  ]
}