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Posted to common-dev@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2019/08/05 15:37:00 UTC

[jira] [Created] (HADOOP-16490) S3GuardExistsRetryPolicy handle FNFE eventual consistency better

Steve Loughran created HADOOP-16490:
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             Summary: S3GuardExistsRetryPolicy handle FNFE eventual consistency better
                 Key: HADOOP-16490
                 URL: https://issues.apache.org/jira/browse/HADOOP-16490
             Project: Hadoop Common
          Issue Type: Sub-task
          Components: fs/s3
    Affects Versions: 3.3.0
            Reporter: Steve Loughran
            Assignee: Steve Loughran


If S3Guard is encountering delayed consistency (FNFE from tombstone; failure to open file) then 
* it only retries with the same times as everything else. We should make it differently configurable
* when an FNFE is finally thrown, rename() treats it as being caused by the original source path missing, when in fact its something else. Proposed: somehow propagate the failure up differently, probably in the S3AFileSystem.copyFile() code



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