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https://issues.apache.org/jira/browse/HADOOP-4044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12638094#action_12638094
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Konstantin Shvachko commented on HADOOP-4044:
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Doug> Instead of direct functions that map parameters to values, we wish to
implement conditional functions, that do one of two things, and indicate in
their response which path was taken.
My proposal allows to keep the code within the current API style: "direct
functions that map parameters to values".
[HADOOP-4044#action_12637702]
[HADOOP-4044#action_12637610]
[HADOOP-4044#action_12637240]
Doug> The alternative is to double or more the number of RPCs per file
operation, which is unacceptable.
My proposal does "not double the number of RPCs per file operation".
[HADOOP-4044#action_12637702]
So if this dispute is not about programming style, then why don't we accept the
solution that does not require any fundamental changes to the FileSystem API
and does not have performance penalties for the regular case? Or is it
nevertheless about the programming style?
I keep wondering what is your selective criteria for ignoring some arguments
and answering other.
> Create symbolic links in HDFS
> -----------------------------
>
> Key: HADOOP-4044
> URL: https://issues.apache.org/jira/browse/HADOOP-4044
> Project: Hadoop Core
> Issue Type: New Feature
> Components: dfs
> Reporter: dhruba borthakur
> Assignee: dhruba borthakur
> Attachments: symLink1.patch, symLink1.patch, symLink4.patch,
> symLink5.patch, symLink6.patch, symLink8.patch, symLink9.patch
>
>
> HDFS should support symbolic links. A symbolic link is a special type of file
> that contains a reference to another file or directory in the form of an
> absolute or relative path and that affects pathname resolution. Programs
> which read or write to files named by a symbolic link will behave as if
> operating directly on the target file. However, archiving utilities can
> handle symbolic links specially and manipulate them directly.
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