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https://issues.apache.org/jira/browse/HADOOP-17281?focusedWorklogId=495417&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-495417
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ASF GitHub Bot logged work on HADOOP-17281:
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Author: ASF GitHub Bot
Created on: 05/Oct/20 16:11
Start Date: 05/Oct/20 16:11
Worklog Time Spent: 10m
Work Description: steveloughran commented on pull request #2354:
URL: https://github.com/apache/hadoop/pull/2354#issuecomment-703732717
_stevel_ and that if a path isn't there, that fact may not surface until
next/hasNext...that is, we do lazy eval for all file IO
_mukund_ Actually this is not correct, we do throw FNFE if a path is not
there, remember we have a check if the listing returns zeror results assuming
the path as a directory, we fall back to file checks.
I'd like the document to leave the option open of a fully async initial
listing operation. so the people coding against it *now* are lined up for
future filesystems that do that. Same for any other APIs we add, "late
reporting of existence of paths/permissions" is something callers MUST expect
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Issue Time Tracking
-------------------
Worklog Id: (was: 495417)
Time Spent: 50m (was: 40m)
> Implement FileSystem.listStatusIterator() in S3AFileSystem
> ----------------------------------------------------------
>
> Key: HADOOP-17281
> URL: https://issues.apache.org/jira/browse/HADOOP-17281
> Project: Hadoop Common
> Issue Type: Task
> Components: fs/s3
> Affects Versions: 3.3.0
> Reporter: Mukund Thakur
> Assignee: Mukund Thakur
> Priority: Major
> Labels: pull-request-available
> Time Spent: 50m
> Remaining Estimate: 0h
>
> Currently S3AFileSystem only implements listStatus() api which returns an
> array. Once we implement the listStatusIterator(), clients can benefit from
> the async listing done recently
> https://issues.apache.org/jira/browse/HADOOP-17074 by performing some tasks
> on files while iterating them.
>
> CC [~stevel]
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