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I am unable to run notebooks, facing issue about quotas exceeded for free trail

rupali ankulge 0 Reputation points
2026-04-04T16:41:26.0766667+00:00

Message

Failed to add 1 worker to the compute. Will attempt retry: true.Reason:Azure Quota Exceeded Exception

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The VM size you are specifying is not available. [details] QuotaExceeded: Operation could not be completed as it results in exceeding approved Total Regional Cores quota. Additional details - Deployment Model: Resource Manager, Location: CentralIndia, Current Limit: 4, Current Usage: 0, Additional Required: 8, (Minimum) New Limit Required: 8. Setup Alerts when Quota reaches threshold. Learn more at https://aka.ms/quotamonitoringalerting . Submit a request for Quota increase at https://aka.ms/ProdportalCRP/#blade/Microsoft_Azure_Capacity/UsageAndQuota.ReactView/Parameters/%7B%22subscriptionId%22:%2203045a6c-bb45-4720-8e8b-b9b6ccc21810%22,%22command%22:%22openQuotaApprovalBlade%22,%22quotas%22:[%7B%22location%22:%22CentralIndia%22,%22providerId%22:%22Microsoft.Compute%22,%22resourceName%22:%22cores%22,%22quotaRequest%22:%7B%22properties%22:%7B%22limit%22:8,%22unit%22:%22Count%22,%22name%22:%7B%22value%22:%22cores%22%7D%7D%7D%7D]%7D by specifying parameters listed in the ‘Details’ section for deployment to succeed. Please read more about quota limits at https://docs.microsoft.com/en-us/azure/azure-supportability/regional-quota-requests(OnDemand)[event log.png](/api/attachments/19be6a64-f224-47c0-8189-08dc4d0d39b3?platform=QnA)

Azure Databricks
Azure Databricks

An Apache Spark-based analytics platform optimized for Azure.

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  1. Q&A Assist
    2026-04-04T16:41:41.15+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    The error indicates that the Azure subscription (a free trial) has reached the regional core quota for the requested VM size in Central India, so Databricks cannot allocate the workers needed for the notebook cluster.

    In a free trial, the Total Regional Cores quota is very low (in this case, limit 4, but the requested cluster needs 8). To resolve this:

    1. Check current quotas in the Azure portal
      Go to the Usage and quotas / Quotas experience for the subscription and verify the Total Regional Cores and VM-family-specific core quotas in Central India.
    2. Request a quota increase
      Use the quota request flow in the Azure portal (Help + support → Create a support request → Issue type: Service and subscription limits (quotas) → select the subscription and region → choose the relevant compute quota) and request at least the Minimum New Limit Required shown in the error (8 cores in Central India).
      For Databricks serverless scenarios, the documented pattern is similar: in Help + support, set:
      • Summary: quota
      • Issue type: Service and subscription limits (quotas)
      • Subscription: the affected subscription
      • Quota type: Azure Databricks Serverless (for serverless) and then specify the region and requested DBUs/hour.
    3. If quota cannot be increased on a free trial
      If the free trial subscription does not allow increasing the regional core quota to the required level, either:
      • Use a smaller Databricks cluster configuration that fits within the existing core quota (for example, fewer workers or smaller VM size), or
      • Move to a pay-as-you-go or other non-trial subscription and request higher quotas there.
    4. General quota behavior
      Azure quotas are per-subscription and per-region, and they act as credit limits, not capacity guarantees. For larger workloads, quota increases must be requested explicitly for each subscription and region used.

    References:

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