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https://issues.apache.org/jira/browse/HADOOP-18930?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17775122#comment-17775122
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ASF GitHub Bot commented on HADOOP-18930:
-----------------------------------------
xinglin commented on code in PR #6168:
URL: https://github.com/apache/hadoop/pull/6168#discussion_r1359140744
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hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFileSystem.java:
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@@ -656,6 +657,11 @@ public void initialize(URI name, Configuration
originalConf)
// verify there's no S3Guard in the store config.
checkNoS3Guard(this.getUri(), getConf());
+ // performance creation flag for code which wants performance
Review Comment:
can we move comment here to where this property MACRO is defined? easy to
find there.
> make fs.s3a.create.performance an option you can set for the entire bucket
> --------------------------------------------------------------------------
>
> Key: HADOOP-18930
> URL: https://issues.apache.org/jira/browse/HADOOP-18930
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs/s3
> Affects Versions: 3.3.9
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Major
> Labels: pull-request-available
>
> make the fs.s3a.create.performance option something you can set everywhere,
> rather than just in an openFile() option or under a magic path.
> this improves performance on apps like iceberg where filenames are generated
> with UUIDs in them, so we know there are no overwrites
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