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  1. Hadoop Common
  2. HADOOP-11694 Über-jira: S3a phase II: robustness, scale and performance
  3. HADOOP-13319

S3A to list InstanceProfileCredentialsProvider after EnvironmentVariableCredentialsProvider

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Details

    • Sub-task
    • Status: Resolved
    • Minor
    • Resolution: Duplicate
    • 2.8.0
    • None
    • fs/s3
    • None

    Description

      S3A now has a default list of credential providers to pick up AWS credentials from

      The environment variable provider added in HADOOP-12807 should go before the InstanceProfileCredentialsProvider one in the list, as it does a simple env var checkup. In contrast InstanceProfileCredentialsProvider does an HTTP request even when not running on EC2. It may block for up to 2s to await a timeout, and network problems could take longer.

      Checking env vars is a low cost operation that shouldn't have to wait for a network timeout before being picked up.

      Attachments

        1. HADOOP-13252-branch-2-001.patch
          34 kB
          Steve Loughran

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            stevel@apache.org Steve Loughran
            stevel@apache.org Steve Loughran
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