Steve Loughran created HADOOP-15650:
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Summary: Add custom InstanceProfileCredentialsProvider with more
resilience to throttling
Key: HADOOP-15650
URL: https://issues.apache.org/jira/browse/HADOOP-15650
Project: Hadoop Common
Issue Type: Sub-task
Components: fs/s3
Affects Versions: 3.1.0
Reporter: Steve Loughran
Add our own InstanceProfileCredentialsProvider class which uses the AWS
implementation to retrieve credentials from EC2's instance info, but more
resilient to overloading.
# pass in client config with retry logic (HADOOP-15603)
# use Invoke.retry() to retry
# log/measure failures
# maybe use the Async feature of the AWS SDK class, so that credential renewer
doesn't block IO.
# be shared amongst all AWS auth chains which need these credentials.
The singleton we current use for IAM auth doesn't do async, which is good as it
ensures that we don't prematurely close it when
{{AWSCredentialProviderList.close()}} closes its children.
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