The underprovisioned instance recommender helps you detect instances that have high CPU and/or memory utilization. It then provides recommendations for how to optimize the instance. This page describes how this recommender works and how to use it.
How it works
When there is high CPU and/or memory utilization detected, you see a recommendation to increase the size of your instance to reduce CPU and/or memory utilization at peak.
GET https://recommender.googleapis.com/v1beta1/projects/PROJECT-ID/locations/LOCATION/recommenders/google.cloudsql.instance.UnderprovisionedRecommender/recommendations
Replace the following:
PROJECT_ID: Your project ID.
LOCATION: A region, such as us-central1.
If the recommender detects underprovisioned instances, it lists them in a table. Each row shows the instance name, a brief recommendation, the current machine type, the recommended machine type, the location, and the last refresh date.
View insights and detailed recommendations
Console
To view insights and detailed recommendations about an underprovisioned instance by using the Google Cloud console, click the recommendation button in the list of instances.
gcloud
To view insights and detailed recommendations about underprovisioned instances by using gcloud, run the gcloud recommender insights list command as follows:
gcloud recommender insights list \ --project=PROJECT_ID \ --location=LOCATION \ --insight-type=google.cloudsql.instance.INSIGHT_TYPE
Replace the following:
PROJECT_ID: Your project ID.
LOCATION: A region, such as us-central1.
INSIGHT_TYPE: The ID of the insight type is UnderprovisionedCpuUsageInsight, UnderprovisionedMemoryUsageInsight, or OomProbabilityInsight, which provide insights about CPU usage, memory, and OOM probability, respectively.
API
To view insights and detailed recommendations about underprovisioned instances by using the Recommendations API, call the insights.list method as follows:
GET https://recommender.googleapis.com/v1beta1/projects/PROJECT-ID/locations/LOCATION/insightTypes/google.cloudsql.instance.INSIGHT_TYPE/insights
Replace the following:
PROJECT_ID: Your project ID.
LOCATION: A region, such as us-central1.
INSIGHT_TYPE: The ID of the insight type as `UnderprovisionedCpuUsageInsight, UnderprovisionedMemoryUsageInsight, or OomProbabilityInsight, which provide insights about CPU usage, memory, and OOM probability, respectively.
The following table lists the insights and recommendations that the Cloud SQL underprovisioned instance recommender might generate to help you avoid bottlenecks from high CPU and memory usage and minimize the likelihood of out-of-memory events. The subtypes are visible in the gcloud and API results.
Insights
Recommendations
Based on the current CPU utilization trends, the instance is flagged as having high CPU usage. Subtype: HIGH_CPU_UTILIZATION
Increase CPU size or reduce CPU utilization. Subtype: CHANGE_INSTANCE_SIZE
Based on the current memory utilization trends, the instance is flagged as having high memory usage. Subtype: HIGH_MEMORY_UTILIZATION.
Increase memory size or reduce memory utilization. Subtype: CHANGE_INSTANCE_SIZE
Based on the current usage trends, the instance is flagged as being at the risk of incurring future OOM events. Subtype: HIGH_OOM_PROBABILITY.
Increase memory size or reduce memory utilization. Subtype: CHANGE_INSTANCE_SIZE
Apply recommendations
Evaluate the recommendations carefully and do any of the following:
To examine the recommendation, click View instance.
A banner appears at the top of the page providing a recommendation.
To dismiss the recommendation so that it's de-emphasized and appears dimmed, click Dismiss.
To close the panel without applying or dismissing the recommendation, click Cancel.
Optimize the performance of your instance
To optimize your instance's performance, do the following:
Edit the instance, if required, to increase the vCPUs or memory. Alternatively, switch to a machine type with more vCPUs and more memory. You don't need to rightsize the instance exactly as recommended. Use your judgement and resize based on how you intend to provision the instance. Keep in mind that the bigger the size, the greater the operational latency.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-25 UTC."],[],[],null,["# Reduce underprovisioned Cloud SQL instances\n\n\u003cbr /\u003e\n\n[MySQL](/sql/docs/mysql/recommender-underprovisioned \"View this page for the MySQL database engine\") \\| [PostgreSQL](/sql/docs/postgres/recommender-underprovisioned \"View this page for the PostgreSQL database engine\") \\| SQL Server\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n|\n| **Preview**\n|\n|\n| This feature is subject to the \"Pre-GA Offerings Terms\" in the General Service Terms section\n| of the [Service Specific Terms](/terms/service-terms#1).\n|\n| Pre-GA features are available \"as is\" and might have limited support.\n|\n| For more information, see the\n| [launch stage descriptions](/products#product-launch-stages).\n\nThe underprovisioned instance [recommender](/recommender/docs/overview)\nhelps you detect instances that have high CPU and/or memory utilization.\nIt then provides recommendations for how to optimize the instance.\nThis page describes how this recommender works and how to use it.\n\nHow it works\n------------\n\nWhen there is high CPU and/or memory utilization detected, you see a recommendation to increase the size of your instance to reduce CPU and/or memory utilization at peak.\n| **Note:** Recommendations are generated daily.\n\nPricing\n-------\n\nThe underprovisioned instance recommender is in the Standard\n[Recommender pricing tier](/recommender/pricing).\n\nBefore you begin\n----------------\n\nBefore you can view recommendations and insights, do the following:\n\n- Ensure that you have the required [roles](/sql/docs/sqlserver/project-access-control#roles) so that you have permission to view and work with insights and recommendations.\n\n For more information about roles, see [understanding roles](/iam/docs/understanding-roles) and [granting IAM permissions](/iam/docs/granting-changing-revoking-access).\n-\n\n\n Enable the Recommender API.\n\n\n [Enable the API](https://console.cloud.google.com/flows/enableapi?apiid=recommender.googleapis.com)\n\nList underprovisioned instance recommendations\n----------------------------------------------\n\n### Console\n\nTo list recommendations about underprovisioned instances, follow these steps:\n\n1. Go to the **Cloud SQL Instances** page.\n\n [Go to Cloud SQL Instances](https://console.cloud.google.com/sql/instances)\n2. Click **View all** on the resize Cloud SQL instance recommender banner.\n\nAlternatively, follow these steps:\n\n1. Go to the **Recommendation Hub**.\n\n [Go to the Recommendation Hub](https://console.cloud.google.com/home/recommendations/)\n\n For more information, see\n [Getting started with Recommendation Hub](/recommender/docs/recommendation-hub/identify-configuration-problems).\n2. In the **Resize Cloud SQL instances to improve performance** card, click **View all**.\n\n3. Click the instances with the **Resize Cloud SQL instance** recommendation.\n\n### gcloud\n\nTo list recommendations about underprovisioned instances, run the\n[`gcloud recommender recommendations list`](/sdk/gcloud/reference/recommender/recommendations/list)\ncommand as follows: \n\n```\ngcloud recommender recommendations list \\\n--project=PROJECT_ID \\\n--location=LOCATION \\\n--recommender=google.cloudsql.instance.UnderprovisionedRecommender\n```\n\nReplace the following:\n\n- \u003cvar translate=\"no\"\u003ePROJECT_ID\u003c/var\u003e: Your project ID.\n- \u003cvar translate=\"no\"\u003eLOCATION\u003c/var\u003e: A region, such as `us-central1`.\n\n### API\n\nTo list recommendations about underprovisioned instances by using the\n[Recommendations API](/recommender/docs/using-api), call the\n[`recommendations.list`](/recommender/docs/reference/rest/v1beta1/projects.locations.recommenders.recommendations/list)\nmethod as follows: \n\n```\nGET https://recommender.googleapis.com/v1beta1/projects/PROJECT-ID/locations/LOCATION/recommenders/google.cloudsql.instance.UnderprovisionedRecommender/recommendations\n```\n\nReplace the following:\n\n- \u003cvar translate=\"no\"\u003ePROJECT_ID\u003c/var\u003e: Your project ID.\n- \u003cvar translate=\"no\"\u003eLOCATION\u003c/var\u003e: A region, such as `us-central1`.\n\nIf the recommender detects underprovisioned instances, it lists them in a\ntable. Each row shows the instance name, a brief recommendation, the current machine type,\nthe recommended machine type, the location, and the last refresh date.\n\nView insights and detailed recommendations\n------------------------------------------\n\n### Console\n\nTo view insights and detailed recommendations about an underprovisioned instance by using the\nGoogle Cloud console, click the recommendation button in the list of instances.\n\n### gcloud\n\nTo view insights and detailed recommendations about underprovisioned instances by using `gcloud`, run the\n[`gcloud recommender insights list`](/sdk/gcloud/reference/recommender/insights/list)\ncommand as follows: \n\n```\ngcloud recommender insights list \\\n--project=PROJECT_ID \\\n--location=LOCATION \\\n--insight-type=google.cloudsql.instance.INSIGHT_TYPE\n```\n\nReplace the following:\n\n- \u003cvar translate=\"no\"\u003ePROJECT_ID\u003c/var\u003e: Your project ID.\n- \u003cvar translate=\"no\"\u003eLOCATION\u003c/var\u003e: A region, such as `us-central1`.\n- \u003cvar translate=\"no\"\u003eINSIGHT_TYPE\u003c/var\u003e: The ID of the insight type is `UnderprovisionedCpuUsageInsight`, `UnderprovisionedMemoryUsageInsight`, or `OomProbabilityInsight`, which provide insights about CPU usage, memory, and OOM probability, respectively.\n\n### API\n\nTo view insights and detailed recommendations about underprovisioned instances by using the\n[Recommendations API](/recommender/docs/using-api), call the\n[`insights.list`](/recommender/docs/reference/rest/v1beta1/projects.locations.insightTypes.insights/list)\nmethod as follows: \n\n```\nGET https://recommender.googleapis.com/v1beta1/projects/PROJECT-ID/locations/LOCATION/insightTypes/google.cloudsql.instance.INSIGHT_TYPE/insights\n```\n\nReplace the following:\n\n- \u003cvar translate=\"no\"\u003ePROJECT_ID\u003c/var\u003e: Your project ID.\n- \u003cvar translate=\"no\"\u003eLOCATION\u003c/var\u003e: A region, such as `us-central1`.\n- \u003cvar translate=\"no\"\u003eINSIGHT_TYPE\u003c/var\u003e: The ID of the insight type as \\``UnderprovisionedCpuUsageInsight`, `UnderprovisionedMemoryUsageInsight`, or `OomProbabilityInsight`, which provide insights about CPU usage, memory, and OOM probability, respectively.\n\nThe following table lists the insights and recommendations that the Cloud SQL\nunderprovisioned instance recommender might generate to help you avoid bottlenecks from high CPU and memory\nusage and minimize the likelihood of out-of-memory events.\nThe subtypes are visible in the `gcloud` and API results.\n\nApply recommendations\n---------------------\n\nEvaluate the recommendations carefully and do any of the following:\n\n- To examine the recommendation, click **View instance**.\n\n A banner appears at the top of the page providing a recommendation.\n- To dismiss the recommendation so that it's de-emphasized and appears dimmed,\n click **Dismiss**.\n\n- To close the panel without applying or dismissing the recommendation, click\n **Cancel**.\n\n### Optimize the performance of your instance\n\nTo optimize your instance's performance, do the following:\n\n- [Optimize high memory usage](/sql/docs/sqlserver/optimize-high-memory-usage)\n\n- [Optimize high CPU usage](/sql/docs/sqlserver/optimize-cpu-usage)\n\n\u003c!-- --\u003e\n\n- [Edit](/sql/docs/sqlserver/edit-instance) the instance, if required, to\n increase the vCPUs or memory. Alternatively, switch to a machine type with more\n vCPUs and more memory. You don't need to rightsize the instance exactly as recommended. Use your\n judgement and resize based on how you intend to provision the instance.\n Keep in mind that the bigger the size, the greater the operational latency.\n\n | **Caution:** This operation can lead to an increase in cost. Additionally, it triggers a restart, which brings downtime to the instance.\n\nYou can also [export these recommendations to BigQuery](/recommender/docs/bq-export/export-recommendations-to-bq)\nand then examine them using [Looker Studio](/bigquery/docs/visualize-looker-studio) or [Looker](/bigquery/docs/looker).\n\nWhat's next\n-----------\n\n- [Monitor disk availability](/sql/docs/sqlserver/using-ood-recommender)\n- [Reduce idle Cloud SQL instances](/sql/docs/sqlserver/recommender-sql-idle)\n- [Blog: Maximize your Cloud ROI](https://cloud.google.com/blog/products/management-tools/active-assist-comes-to-google-cloud)\n- [Blog: Do more with less](https://cloud.google.com/blog/products/databases/reduce-cloud-sql-costs-with-optimizations-by-active-assist)\n- [Google Cloud recommenders](/recommender/docs/recommenders)"]]
