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https://issues.apache.org/jira/browse/HADOOP-19072?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17872117#comment-17872117
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ASF GitHub Bot commented on HADOOP-19072:
-----------------------------------------
virajjasani commented on code in PR #6543:
URL: https://github.com/apache/hadoop/pull/6543#discussion_r1710175488
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hadoop-common-project/hadoop-common/src/site/markdown/filesystem/fsdataoutputstreambuilder.md:
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@@ -200,8 +200,8 @@ Prioritize file creation performance over safety checks for
filesystem consisten
This:
1. Skips the `LIST` call which makes sure a file is being created over a
directory.
Risk: a file is created over a directory.
-1. Ignores the overwrite flag.
-1. Never issues a `DELETE` call to delete parent directory markers.
+2. Ignores the overwrite flag.
Review Comment:
yeah, this was done by IDE so i thought of keeping it. earlier i updated
this description but now that we have new config, i removed the description
here and moved it to `fs.s3a.performance.flags`.
> S3A: expand optimisations on stores with "fs.s3a.performance.flags" for mkdir
> -----------------------------------------------------------------------------
>
> Key: HADOOP-19072
> URL: https://issues.apache.org/jira/browse/HADOOP-19072
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 3.4.0
> Reporter: Steve Loughran
> Assignee: Viraj Jasani
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.5.0
>
>
> on an s3a store with fs.s3a.create.performance set, speed up other operations
> * mkdir to skip parent directory check: just do a HEAD to see if there's a
> file at the target location
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