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https://issues.apache.org/jira/browse/HADOOP-14467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16088268#comment-16088268
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Aaron Fabbri commented on HADOOP-14467:
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I've created a simple integration test that exercises this.
[[email protected]] do you know who can grant me write access to the Hadoop
Confluence wiki?
> S3Guard: Improve FNFE message when opening a stream
> ---------------------------------------------------
>
> Key: HADOOP-14467
> URL: https://issues.apache.org/jira/browse/HADOOP-14467
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Reporter: Aaron Fabbri
> Assignee: Aaron Fabbri
> Priority: Minor
>
> Following up on the [discussion on
> HADOOP-13345|https://issues.apache.org/jira/browse/HADOOP-13345?focusedCommentId=16030050&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16030050],
> because S3Guard can serve getFileStatus() from the MetadataStore without
> doing a HEAD on S3, a FileNotFound error on a file due to S3 GET
> inconsistency does not happen on open(), but on the first read of the stream.
> We may add retries to the S3 client in the future, but for now we should
> have an exception message that indicates this may be due to inconsistency
> (assuming it isn't a more straightforward case like someone deleting the
> object out from under you).
> This is expected to be a rare case, since the S3 service is now mostly
> consistent for GET.
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