Enable temperature profile

[adityaj1107]

Fixes #: Enable Node Temperature RCA. This PR enables the Node Temperature RCA on the cluster.

Description of changes: This commit enables the temperature Profile and refactors the code which removes the healthy/unhealthy context of the dimensional RCAs. Also adds comments and checks for values of Flow Units in the Individual RCAs & Group RCAs. Also change the use to ShardIndexKey instead of Shard ID and Index ID separately.

Tests: Tested on Docker. Sample Output:

Node 1:

[root@391ae37d34b6 tmp]# curl --url "localhost:9600/_opendistro/_performanceanalyzer/rca?name=NodeTemperatureRca&local=true" -XGET | python -m json.tool 
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   459  100   459    0     0   2244      0 --:--:-- --:--:-- --:--:--  2250
{
    "NodeTemperatureRca": [
        {
            "CompactNodeSummary": [
                {
                    "CPU_Utilization_mean": 0,
                    "CPU_Utilization_num_shards": 0,
                    "CPU_Utilization_total": 0.0,
                    "Heap_AllocRate_mean": 0,
                    "Heap_AllocRate_num_shards": 0,
                    "Heap_AllocRate_total": 0.0,
                    "Shard_Size_In_Bytes_mean": 3,
                    "Shard_Size_In_Bytes_num_shards": 3,
                    "Shard_Size_In_Bytes_total": 23449682.0,
                    "host_address": "172.29.0.2",
                    "node_id": "SqlWFl9BR02Bz0gVcFS8qQ"
                }
            ],
            "rca_name": "NodeTemperatureRca",
            "state": "unknown",
            "timestamp": 1605582526245
        }
    ]
}

Node 2:

[root@ef8562eeb2ed tmp]# curl --url "localhost:9600/_opendistro/_performanceanalyzer/rca?name=NodeTemperatureRca&local=true" -XGET | python -m json.tool 
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   459  100   459    0     0   9945      0 --:--:-- --:--:-- --:--:-- 10200
{
    "NodeTemperatureRca": [
        {
            "CompactNodeSummary": [
                {
                    "CPU_Utilization_mean": 0,
                    "CPU_Utilization_num_shards": 0,
                    "CPU_Utilization_total": 0.0,
                    "Heap_AllocRate_mean": 0,
                    "Heap_AllocRate_num_shards": 0,
                    "Heap_AllocRate_total": 0.0,
                    "Shard_Size_In_Bytes_mean": 5,
                    "Shard_Size_In_Bytes_num_shards": 2,
                    "Shard_Size_In_Bytes_total": 15918349.0,
                    "host_address": "172.29.0.3",
                    "node_id": "XyinFukETiaOdwfSkGnM8w"
                }
            ],
            "rca_name": "NodeTemperatureRca",
            "state": "unknown",
            "timestamp": 1605582517354
        }
    ]
}

AllTemperatureDimensions have also been enabled.

If new tests are added, how long do the new ones take to complete

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[yojs]

can we make sure that the temperature profile is working with the new perftop dashboard we added for it ?

[yojs]

Awesome ! great comment

[yojs]

typo: this -> the ?