[YARN-4785] inconsistent value type of the "type" field for LeafQueueInfo in response of RM REST API - cluster/scheduler

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.6.0
• Fix Version/s: 2.8.0, 2.7.3, 2.6.5, 3.0.0-alpha1
• Component/s: webapp
• Labels: REST_API
• Hadoop Flags: Reviewed
• Release Note: Fix inconsistent value type ( String and Array ) of the "type" field for LeafQueueInfo in response of RM REST API
• Flags: Important
• Assignee: Varun Vasudev
• Reporter: Jay Sen
• Created: 09/Mar/16 22:37
• Updated: 25/Oct/19 20:27
• Resolved: 17/Mar/16 16:37

Description

I see inconsistent value type ( String and Array ) of the "type" field for LeafQueueInfo in response of RM REST API - cluster/scheduler
as per the spec it should be always String.

here is the sample output ( removed non-relevant fields )

{
  "scheduler": {
    "schedulerInfo": {
      "type": "capacityScheduler",
      "capacity": 100,
      ...
      "queueName": "root",
      "queues": {
        "queue": [
          {
            "type": "capacitySchedulerLeafQueueInfo",
            "capacity": 0.1,
            ....
          },
          {
            "type": [
              "capacitySchedulerLeafQueueInfo"
            ],
            "capacity": 0.1,
            "queueName": "test-queue",
            "state": "RUNNING",
            ....
          },
          {
            "type": [
              "capacitySchedulerLeafQueueInfo"
            ],
            "capacity": 2.5,
            ....
          },
          {
            "capacity": 25,
            ....
            "state": "RUNNING",
            "queues": {
              "queue": [
                {
                  "capacity": 6,
                  "state": "RUNNING",
                  "queues": {
                    "queue": [
                      {
                        "type": "capacitySchedulerLeafQueueInfo",
                        "capacity": 100,
                        ...
                      }
                    ]
                  },
                  ....
                },
                {
                  "capacity": 6,
                  ...
                  "state": "RUNNING",
                  "queues": {
                    "queue": [
                      {
                        "type": "capacitySchedulerLeafQueueInfo",
                        "capacity": 100,
                        ...
                      }
                    ]
                  },
                  ...
                },
                ...
              ]
            },
            ...
          }
        ]
      }
    }
  }
}