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Posted to common-issues@hadoop.apache.org by "Steve Loughran (Jira)" <ji...@apache.org> on 2021/11/10 16:01:00 UTC
[jira] [Resolved] (HADOOP-17981) Support etag-assisted renames in
FileOutputCommitter
[ https://issues.apache.org/jira/browse/HADOOP-17981?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Steve Loughran resolved HADOOP-17981.
-------------------------------------
Resolution: Won't Fix
closing as WONTFIX as even though the PR is complete, we don't want to make changes to FileOutputCommitter.
# etag API into HADOOP-1979
# recovery in MAPREDUCE-7341
> Support etag-assisted renames in FileOutputCommitter
> ----------------------------------------------------
>
> Key: HADOOP-17981
> URL: https://issues.apache.org/jira/browse/HADOOP-17981
> Project: Hadoop Common
> Issue Type: New Feature
> Components: fs, fs/azure
> Affects Versions: 3.4.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Major
> Labels: pull-request-available
> Time Spent: 12h 20m
> Remaining Estimate: 0h
>
> To deal with some throttling/retry issues in object stores,
> pass the FileStatus entries retrieved during listing
> into a private interface ResilientCommitByRename which filesystems
> may implement to use extra attributes in the listing (etag, version)
> to constrain and validate the operation.
> Although targeting azure, GCS and others could use. no point in S3A as they shouldn't use this committer.
> # And we are not going to do any changes to FileSystem as there are explicit guarantees of public use and stability.
> I am not going to make that change as the hive thing that will suddenly start expecting it to work forever.
> # I'm not planning to merge this in, as the manifest committer is going to include this and more (MAPREDUCE-7341)
> However, I do need to get this in on a branch, so am doing this work on trunk for dev & test and for others to review
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