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Accessing the regions that are disabled by default in AWS from Databricks. In AWS we have 4 regions that are disabled by default. You must first enabl...

Prabakar
Databricks Employee
Databricks Employee

Accessing the regions that are disabled by default in AWS from Databricks.

In AWS we have 4 regions that are disabled by default. You must first enable it before you can create and manage resources. The following Regions are disabled by default:

  • Africa (Cape Town)
  • Asia Pacific (Hong Kong)
  • Europe (Milan)
  • Middle East (Bahrain)

In Databricks, when we try to access/mount the bucket in these regions it will fail. The reason is that the AWS SDK we bundle in Databricks doesn't have the by-default-disabled region information. So auto-region detection will not work for these regions.

In such a special case, to access the buckets in the disabled regions, we have to provide an S3 endpoint along with the STS endpoint to mount the bucket.

%scala
dbutils.fs.mount("s3a://<Bucket-in-Milan>/", "/mnt/milan/",
  extraConfigs = Map(
    "fs.s3a.credentialsType" -> "AssumeRole",
    "fs.s3a.stsAssumeRole.arn" -> "arn:aws:iam::000000000000:role/MyRole",
    "fs.s3a.acl.default" -> "BucketOwnerFullControl",
    "fs.s3a.endpoint" -> "s3.eu-south-1.amazonaws.com",
    "fs.s3a.stsAssumeRole.stsEndpoint" -> "sts.eu-south-1.amazonaws.com"
  )
)

Africa (Cape Town) : sts.af-south-1.amazonaws.com ; s3.af-south-1.amazonaws.com

Asia Pacific (Hong Kong) : sts.ap-east-1.amazonaws.com ; s3.ap-east-1.amazonaws.com

Europe (Milan) : sts.eu-south-1.amazonaws.com ; s3.eu-south-1.amazonaws.com

Middle East (Bahrain) : sts.me-south-1.amazonaws.com; s3.me-south-1.amazonaws.com

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