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https://issues.apache.org/jira/browse/HADOOP-13946?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15897890#comment-15897890
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Chris Nauroth commented on HADOOP-13946:
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The content looks great. I have a few minor copy editing comments.
{code}
* When a file is renamed, it's modification time is not changed, *but the source
and destination directories have their modification times updated.
{code}
Replace with "its modification time". I think you were going for italics with
that '\*', but it's unclosed and rendering the actual '\*' into the page when I
build the site.
{code}
the default granularity is 1 houre. If the precision set to zero, access times
{code}
Change to "hours" and "precision is set to zero".
{code}
`create()` call, or the actual the time which the PUT request was initiated.
{code}
Remove the extra "the".
{code}
* `FileSystem.chmod()` may update modification times (example: Azure wasb://).
{code}
Markdown is rendering an actualy hyperlink that targets "wasb://)", which does
nothing when clicked. Can this be suppressed or changed to a link to our WASB
document?
After that, this patch will be ready to go.
> Document how HDFS updates timestamps in the FS spec; compare with object
> stores
> -------------------------------------------------------------------------------
>
> Key: HADOOP-13946
> URL: https://issues.apache.org/jira/browse/HADOOP-13946
> Project: Hadoop Common
> Issue Type: Improvement
> Components: documentation, fs
> Affects Versions: 2.7.3
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Minor
> Attachments: HADOOP-13946-001.patch, HADOOP-13946-002.patch,
> HADOOP-13946-003.patch, HADOOP-13946-004.patch
>
>
> SPARK-17159 shows that the behavior of when HDFS updates timestamps isn't
> well documented. Document these in the FS spec.
> I'm not going to add tests for this, as it is so very dependent on FS
> implementations, as in "POSIX filesystems may behave differently from HDFS".
> If someone knows what happens there, their contribution is welcome.
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