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https://issues.apache.org/jira/browse/HADOOP-16490?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Loughran resolved HADOOP-16490.
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Fix Version/s: 3.3.0
Resolution: Fixed
> Avoid/handle cached 404s during S3A file creation
> -------------------------------------------------
>
> 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
> Priority: Major
> Fix For: 3.3.0
>
>
> 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
> * don't do HEAD checks when creating files
> * shell commands to avoid deleteOnExit calls as these also generate HEAD
> calls by way of exists() checks
> eliminating the HEAD checks will stop 404s getting into the S3 load
> balancer/cache during file creation
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