# S3 Pipeline Errors

For more information about creating pipelines with S3, refer to [Load Data from Amazon Web Services (AWS) S3](https://docs.singlestore.com/db/v9.1/load-data/data-sources/load-data-from-amazon-web-services-aws-s-3.md).

## S3 Authentication Errors

You may receive authentication errors if you attempt to create an S3 pipeline without providing credentials or if the provided credentials are invalid.

## NoCredentialProviders: no valid providers in chain.

This error is caused by one or more of the following conditions:

* No `CREDENTIALS` were specified in the `CREATE PIPELINE` statement or the JSON was malformed.
* An IAM role was specified, but your EC2 instance was not configured with an instance profile.

## "aws\_access\_key\_id" specified, but not "aws\_secret\_access\_key"

This error is caused by a missing `aws_secret_access_key` key in the `CREDENTIALS` JSON of your `CREATE PIPELINE` statement, or if the JSON key is malformed.

## "aws\_secret\_access\_key" specified, but not "aws\_access\_key\_id"

This error is caused by a missing `aws_access_key_id` key in the `CREDENTIALS` JSON of your `CREATE PIPELINE` statement, or if the JSON is malformed.

## InvalidAccessKeyID: The access key ID you provided does not exist in our records

This error is caused by specifying an *Access Key ID* that does not exist.

## SignatureDoesNotMatch: The request signature we calculated does not match the signature you provided. Check your key and signing method

This error is caused by specifying an invalid combination of an *Access Key ID* and a *Secret Access Key*.

## Subprocess timed out or CREATE PIPELINE stalls after approximately 60 seconds when using S3 without CREDENTIALS

This occurs when the IMDS reachability probe for implicit AWS credentials times out on networks where the `169.254.169.254` IP address is unreachable.  To resolve this issue, either reduce the value of the `subprocess_ec2_metadata_timeout_ms` engine variable (for example, to `1000`) or provide explicit `CREDENTIALS` for S3. Refer to [Sync Variables Lists](https://docs.singlestore.com/db/v9.1/reference/configuration-reference/engine-variables/list-of-engine-variables/#sync-variables-lists.md) for more information.

***

Modified at: May 12, 2026

Source: [/db/v9.1/load-data/data-sources/load-data-from-amazon-web-services-aws-s-3/s-3-pipeline-errors/](https://docs.singlestore.com/db/v9.1/load-data/data-sources/load-data-from-amazon-web-services-aws-s-3/s-3-pipeline-errors/)

(An index of the documentation is available at /llms.txt)