Creating, listing, and deleting Amazon OpenSearch Serverless collections - Amazon OpenSearch Service

Creating, listing, and deleting Amazon OpenSearch Serverless collections

A collection in Amazon OpenSearch Serverless is a logical grouping of one or more indexes that represent an analytics workload. OpenSearch Service automatically manages and tunes the collection, requiring minimal manual input.

Permissions required

OpenSearch Serverless uses the following AWS Identity and Access Management (IAM) permissions for creating and managing collections. You can specify IAM conditions to restrict users to specific collections.

  • aoss:CreateCollection – Create a collection.

  • aoss:ListCollections – List collections in the current account.

  • aoss:BatchGetCollection – Get details about one or more collections.

  • aoss:UpdateCollection – Modify a collection.

  • aoss:DeleteCollection – Delete a collection.

The following sample identity-based access policy provides the minimum permissions necessary for a user to manage a single collection named Logs:

[ { "Sid":"Allows managing logs collections", "Effect":"Allow", "Action":[ "aoss:CreateCollection", "aoss:ListCollections", "aoss:BatchGetCollection", "aoss:UpdateCollection", "aoss:DeleteCollection", "aoss:CreateAccessPolicy", "aoss:CreateSecurityPolicy" ], "Resource":"*", "Condition":{ "StringEquals":{ "aoss:collection":"Logs" } } } ]

aoss:CreateAccessPolicy and aoss:CreateSecurityPolicy are included because encryption, network, and data access policies are required in order for a collection to function properly. For more information, see Identity and Access Management for Amazon OpenSearch Serverless.


If you're creating the first collection in your account, you also need the iam:CreateServiceLinkedRole permission. For more information, see Using service-linked roles to create OpenSearch Serverless collections.

Creating collections

You can use the console or the AWS CLI to create a serverless collection. These steps cover how to create a search or time series collection. To create a vector search collection, see Working with vector search collections.

Create a collection (console)

To create a collection using the console
  1. Navigate to the Amazon OpenSearch Service console at

  2. Expand Serverless in the left navigation pane and choose Collections.

  3. Choose Create collection.

  4. Provide a name and description for the collection. The name must meet the following criteria:

    • Is unique to your account and AWS Region

    • Starts with a lowercase letter

    • Contains between 3 and 32 characters

    • Contains only lowercase letters a-z, the numbers 0–9, and the hyphen (-)

  5. Choose a collection type:

    • Search – Full-text search that powers applications in your internal networks and internet-facing applications. All search data is stored in hot storage to ensure fast query response times.

    • Time series – Log analytics segment that focuses on analyzing large volumes of semi-structured, machine-generated data. At least 24 hours of data is stored on hot indexes, and the rest remains in warm storage.

    • Vector search – Semantic search on vector embeddings that simplifies vector data management. Powers machine learning (ML) augmented search experiences and generative AI applications such as chatbots, personal assistants, and fraud detection.

    For more information, see Choosing a collection type.

  6. Under Deployment type, choose the redundancy setting for your collection. By default, each collection is created with redundancy, meaning that the indexing and search OpenSearch Compute Units (OCUs) each have their own standby replicas in a different Availability Zone. For development and testing purposes, you can choose to disable redundancy, which reduces the number of OCUs in your collection to two. For more information, see How it works.

  7. Under Encryption, choose an AWS KMS key to encrypt your data with. OpenSearch Serverless notifies you if the collection name that you entered matches a pattern defined in an encryption policy. You can choose to keep this match or override it with unique encryption settings. For more information, see Encryption in Amazon OpenSearch Serverless.

  8. Under Network access settings, configure network access for the collection.

    • For Access type, select public or private. Then, specify which VPC endpoints and AWS services can access the collection.

    • For Resource type, select whether the collection will be accessible through its OpenSearch endpoint (to make API calls through curl, Postman, and so on), through the OpenSearch Dashboards endpoint (to work with visualizations and make API calls through the console), or through both.


      AWS service private access applies only to the OpenSearch endpoint, not to the OpenSearch Dashboards endpoint.

    OpenSearch Serverless notifies you if the collection name that you entered matches a pattern defined in a network policy. You can choose to keep this match or override it with custom network settings. For more information, see Network access for Amazon OpenSearch Serverless.

  9. (Optional) Add one or more tags to the collection. For more information, see Tagging Amazon OpenSearch Serverless collections.

  10. Choose Next.

  11. Configure data access rules for the collection, which define who can access the data within the collection. For each rule that you create, perform the following steps:

    OpenSearch Serverless notifies you if the collection name that you entered matches a pattern defined in a data access policy. You can choose to keep this match or override it with unique data access settings. For more information, see Data access control for Amazon OpenSearch Serverless.

  12. Choose Next.

  13. Under Data access policy settings, choose what to do with the rules you just created. You can either use them to create a new data access policy, or add them to an existing policy.

  14. Review your collection configuration and choose Submit.

The collection status changes to Creating as OpenSearch Serverless creates the collection.

Create a collection (CLI)

Before you create a collection using the AWS CLI, you must have an encryption policy with a resource pattern that matches the intended name of the collection. For example, if you plan to name your collection logs-application, you might create an encryption policy like this:

aws opensearchserverless create-security-policy \ --name logs-policy \ --type encryption --policy "{\"Rules\":[{\"ResourceType\":\"collection\",\"Resource\":[\"collection\/logs-application\"]}],\"AWSOwnedKey\":true}"

If you plan to use the policy for additional collections, you can make the rule more broad, such as collection/logs* or collection/*.

You also need to configure network settings for the collection in the form of a network policy. Using the previous logs-application example, you might create the following network policy:

aws opensearchserverless create-security-policy \ --name logs-policy \ --type network --policy "[{\"Description\":\"Public access for logs collection\",\"Rules\":[{\"ResourceType\":\"dashboard\",\"Resource\":[\"collection\/logs-application\"]},{\"ResourceType\":\"collection\",\"Resource\":[\"collection\/logs-application\"]}],\"AllowFromPublic\":true}]"

You can create network policies after you create a collection, but we recommend doing it beforehand.

To create a collection, send a CreateCollection request:

aws opensearchserverless create-collection --name "logs-application" --type SEARCH --description "A collection for storing log data"

For type, specify either SEARCH or TIMESERIES. For more information, see Choosing a collection type.

Sample response

{ "createCollectionDetail": { "id": "07tjusf2h91cunochc", "name": "books", "description":"A collection for storing log data", "status": "CREATING", "type": "SEARCH", "kmsKeyArn": "auto", "arn": "arn:aws:aoss:us-east-1:123456789012:collection/07tjusf2h91cunochc", "createdDate": 1665952577473 } }

If you don't specify a collection type in the request, it defaults to TIMESERIES. If your collection is encrypted with an AWS owned key, the kmsKeyArn is auto rather than an ARN.


After you create a collection, you won't be able to access it unless it matches a data access policy. For instructions to create data access policies, see Data access control for Amazon OpenSearch Serverless.

Accessing OpenSearch Dashboards

After you create a collection with the AWS Management Console, you can navigate to the collection's OpenSearch Dashboards URL. You can find the Dashboards URL by choosing Collections in the left navigation pane and selecting the collection to open its details page. The URL takes the format Once you navigate to the URL, you'll automatically log into Dashboards.

If you already have the OpenSearch Dashboards URL available but aren't on the AWS Management Console, calling the Dashboards URL from the browser will redirect to the console. Once you enter your AWS credentials, you'll automatically log in to Dashboards. For information about accessing collections for SAML, see Accessing OpenSearch Dashboards with SAML.

The OpenSearch Dashboards console timeout is one hour and isn't configurable.


On May 10, 2023, OpenSearch introduced a common global endpoint for OpenSearch Dashboards. You can now navigate to OpenSearch Dashboards in the browser with a URL that takes the format To ensure backward compatibility, we'll continue to support the existing collection specific OpenSearch Dashboards endpoints with the format

Viewing collections

You can view the existing collections in your AWS account on the Collections tab of the Amazon OpenSearch Service console.

To list collections along with their IDs, send a ListCollections request.

aws opensearchserverless list-collections

Sample response

{ "collectionSummaries":[ { "arn":"arn:aws:aoss:us-east-1:123456789012:collection/07tjusf2h91cunochc", "id":"07tjusf2h91cunochc", "name":"my-collection", "status":"CREATING" } ] }

To limit the search results, use collection filters. This request filters the response to collections in the ACTIVE state:

aws opensearchserverless list-collections --collection-filters '{ "status": "ACTIVE" }'

To get more detailed information about one or more collections, including the OpenSearch endpoint and the OpenSearch Dashboards endpoint, send a BatchGetCollection request:

aws opensearchserverless batch-get-collection --ids ["07tjusf2h91cunochc", "1iu5usc4rame"]

You can include --names or --ids in the request, but not both.

Sample response

{ "collectionDetails":[ { "id": "07tjusf2h91cunochc", "name": "my-collection", "status": "ACTIVE", "type": "SEARCH", "description": "", "arn": "arn:aws:aoss:us-east-1:123456789012:collection/07tjusf2h91cunochc", "kmsKeyArn": "arn:aws:kms:us-east-1:123456789012:key/1234abcd-12ab-34cd-56ef-1234567890ab", "createdDate": 1667446262828, "lastModifiedDate": 1667446300769, "collectionEndpoint": "", "dashboardEndpoint": "" }, { "id": "178ukvtg3i82dvopdid", "name": "another-collection", "status": "ACTIVE", "type": "TIMESERIES", "description": "", "arn": "arn:aws:aoss:us-east-1:123456789012:collection/178ukvtg3i82dvopdid", "kmsKeyArn": "arn:aws:kms:us-east-1:123456789012:key/1234abcd-12ab-34cd-56ef-1234567890ab", "createdDate": 1667446262828, "lastModifiedDate": 1667446300769, "collectionEndpoint": "", "dashboardEndpoint": "" } ], "collectionErrorDetails":[] }

Deleting collections

Deleting a collection deletes all data and indexes in the collection. You can't recover collections after you delete them.

To delete a collection using the console
  1. From the Collections panel of the Amazon OpenSearch Service console, select the collection you want to delete.

  2. Choose Delete and confirm deletion.

To delete a collection using the AWS CLI, send a DeleteCollection request:

aws opensearchserverless delete-collection --id 07tjusf2h91cunochc

Sample response

{ "deleteCollectionDetail":{ "id":"07tjusf2h91cunochc", "name":"my-collection", "status":"DELETING" } }