.create-or-alter workload_group command

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Applies to: ✅ Azure Data Explorer

Creates a new workload group, or alters an existing workload group.

Permissions

You must have Cluster AllDatabasesAdmin permissions to run this command.

Syntax

.create-or-alter workload_group WorkloadGroupName SerializedPolicyObject

Learn more about syntax conventions.

Parameters

* The following policies apply to workload groups:

• request classification
• request limits
• request rate limit
• request rate limits enforcement
• specify query consistency mode

Returns

The command returns one row showing the details of the workload group.

Following is the schema of the output returned:

Examples

Define request limits policy

Create MyWorkloadGroup workload group with a full definition of its request limits policy:

.create-or-alter workload_group MyWorkloadGroup ```
{
  "RequestLimitsPolicy": {
    "DataScope": {
      "IsRelaxable": true,
      "Value": "HotCache"
    },
    "MaxMemoryPerQueryPerNode": {
      "IsRelaxable": false,
      "Value": 6442450944
    },
    "MaxMemoryPerIterator": {
      "IsRelaxable": false,
      "Value": 5368709120
    },
    "MaxFanoutThreadsPercentage": {
      "IsRelaxable": true,
      "Value": 100
    },
    "MaxFanoutNodesPercentage": {
      "IsRelaxable": true,
      "Value": 100
    },
    "MaxResultRecords": {
      "IsRelaxable": true,
      "Value": 500000
    },
    "MaxResultBytes": {
      "IsRelaxable": true,
      "Value": 67108864
    },
    "MaxExecutionTime": {
      "IsRelaxable": true,
      "Value": "00:04:00"
    },
    "QueryResultsCacheMaxAge": {
      "IsRelaxable": true,
      "Value": "00:05:00"
    }
  }
} ```

Output

Define request limits policy and request rate limits policies

Create My Workload Group workload group with a full definition of its request limits policy and request rate limits policies:

.create-or-alter workload_group ['My Workload Group'] ```
{
  "RequestLimitsPolicy": {
    "DataScope": {
      "IsRelaxable": true,
      "Value": "All"
    },
    "MaxMemoryPerQueryPerNode": {
      "IsRelaxable": true,
      "Value": 6442450944
    },
    "MaxMemoryPerIterator": {
      "IsRelaxable": true,
      "Value": 5368709120
    },
    "MaxFanoutThreadsPercentage": {
      "IsRelaxable": true,
      "Value": 100
    },
    "MaxFanoutNodesPercentage": {
      "IsRelaxable": true,
      "Value": 100
    },
    "MaxResultRecords": {
      "IsRelaxable": true,
      "Value": 500000
    },
    "MaxResultBytes": {
      "IsRelaxable": true,
      "Value": 67108864
    },
    "MaxExecutionTime": {
      "IsRelaxable": true,
      "Value": "00:04:00"
    },
    "QueryResultsCacheMaxAge": {
      "IsRelaxable": true,
      "Value": "00:05:00"
    }
  },
  "RequestRateLimitPolicies": [
  {
      "IsEnabled": true,
      "Scope": "WorkloadGroup",
      "LimitKind": "ConcurrentRequests",
      "Properties": {
        "MaxConcurrentRequests": 100
      }
    },
    {
      "IsEnabled": true,
      "Scope": "Principal",
      "LimitKind": "ConcurrentRequests",
      "Properties": {
        "MaxConcurrentRequests": 25
      }
    }
  ]
} ```

Output

Related content

• Workload groups
• .alter-merge workload_group
• .drop workload_group
• .show workload_group