abhishekrb19 opened a new pull request, #15238:
URL: https://github.com/apache/druid/pull/15238
Sometimes we wrap `AmazonS3Exception` inside an `IOException` and _all_
`IOExceptions` by default are retried by the S3 retry logic. For example, a 403
`AccessDenied` code wrapped inside `IOException` shouldn't be retried.
This PR updates the s3 retry logic to account for the underlying cause if
it's found.
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#### Release note
S3 exceptions like 403 AccessDenied codes wrapped inside other exceptions,
like `IOException`, won't trigger unnecessary retries.
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<hr>
##### Key changed/added classes in this PR
* `S3Utils.java`
* `S3UtilsTest.java`
<hr>
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This PR has:
- [x] been self-reviewed.
- [x] a release note entry in the PR description.
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wherever would not be obvious for an unfamiliar reader.
- [x] added unit tests or modified existing tests to cover new code paths,
ensuring the threshold for [code
coverage](https://github.com/apache/druid/blob/master/dev/code-review/code-coverage.md)
is met.
- [x] been tested in a test Druid cluster.
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