AWS S3 + Dynomadb solved concurrent writes warning

In code you only change lancedb.connect

lancedb.connect(
            uri=f"s3+ddb://<bucket_name>?ddbTableName=<table_name>",
            storage_options={
                "region": os.environ.get("AWS_REGION", "us-east-1"),
                "aws_access_key_id": os.environ["AWS_ACCESS_KEY_ID"],
                "aws_secret_access_key": os.environ["AWS_SECRET_ACCESS_KEY"]
            },
        )

• bucket_name is the s3 bucket name (e.g. aws-s3-v2)
• table_name is the dynomadb table name (e.g. nail-dynamodb-v1)

Next you will configure in AWS

Create Table

Search DynamoDB in AWS console. Navigate to Table section. Click Create table. Give a table name for table_name. Next, very important

Partition key: enter base_uri and set String type
Sort key: enter version and set number type

Note: I know you confusing, but yes just put the exact base_url and version.

Then use Default settings

Click Create table button.

Permission

Next, search Policies keyword and navigate to the Policies under the IAM feature. Click Create policy

Choose JSON format.

Replace with here:

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "s3:GetObject",
                "s3:PutObject",
                "s3:ListBucket"
            ],
            "Resource": [
                "arn:aws:s3:::your-s3-bucket",
                "arn:aws:s3:::your-s3-bucket/*"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "dynamodb:PutItem",
                "dynamodb:GetItem",
                "dynamodb:UpdateItem",
                "dynamodb:Scan",
                "dynamodb:Query"
            ],
            "Resource": "arn:aws:dynamodb:us-east-1:your-aws-account-id:table/nail-dynamodb-v1"
        }
    ]
}

• Replace your-s3-bucket with your actual S3 bucket name.
• Replace your-aws-account-id with your actual AWS account ID.
• The policy allows:
• Read & write access to S3 for storing LanceDB data.
• Full read/write access to DynamoDB (nail-dynamodb-v1).

Then, you are safe to create policy.

Add Permission

Now navigate to Users section, you will find a Permissions policies list. Click Add permissions, choose Attach policies directly, then search your policy name and add it.

Done. Now you are ready to go.