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https://issues.apache.org/jira/browse/HADOOP-17498?focusedWorklogId=588312&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-588312
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ASF GitHub Bot logged work on HADOOP-17498:
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Author: ASF GitHub Bot
Created on: 24/Apr/21 17:01
Start Date: 24/Apr/21 17:01
Worklog Time Spent: 10m
Work Description: steveloughran closed pull request #2671:
URL: https://github.com/apache/hadoop/pull/2671
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Issue Time Tracking
-------------------
Worklog Id: (was: 588312)
Time Spent: 1.5h (was: 1h 20m)
> Add a MkdirOperation for chained S3 operations during mkdir
> -----------------------------------------------------------
>
> Key: HADOOP-17498
> URL: https://issues.apache.org/jira/browse/HADOOP-17498
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 3.3.1
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> on S3A mkdirs is implemented as a walk up the tree looking for any parent
> dir, exiting fast when found; failing if a file is found.
> Proposed: pull this out into its own MkDir operation with the goals of
> efficiency, track duration and isolate/test
> * specific callbacks to getFileStatus and createFakeDirectory(key);
> * Move from simple getFileStatus call to probes assuming dir exists before
> looking for a file: HEAD + path /, LIST path,
> * the probe for a file HEAD path will only succeed in a failure mode where
> higher cost is a detail
> I think I'd also like to start looking at what we can do with some context
> tracking/telemetry where something provides an operation ID and ability to
> attach this to the requests
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