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https://issues.apache.org/jira/browse/IMPALA-2920?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aman Sinha resolved IMPALA-2920.
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Resolution: Won't Fix
Quite a lot of the file system related information can be retrieved through
various SHOW and DESCRIBE commands. e.g SHOW FILES IN
[database_name.]table_name. It is not clear if providing a SQL interface to
query HDFS pseudo tables will add much additional value.
> Provide an HDFS pseudotable in Impala
> -------------------------------------
>
> Key: IMPALA-2920
> URL: https://issues.apache.org/jira/browse/IMPALA-2920
> Project: IMPALA
> Issue Type: New Feature
> Components: Frontend
> Affects Versions: Impala 2.2.4
> Reporter: Joe Slagel
> Priority: Minor
> Labels: impala
>
> Would it be possible to implement some sort of pseudo table(s) in Impala that
> one could query to get HDFS information? For example, instead of having to
> do some sort of "hdfs dfs -ls *" from the command line (or through an hdfs
> api), cut, sort, filter and dump to a file to operate on, it'd be nice to do
> something like select filename from hdfs where path like '/tmp/some/path/%'.
> Similarly you could then run queries to do things like group by files in
> directories, sizes of files, etc. The possibilities are pretty endless of
> how useful it could be. And all easily done through the Hue interface.
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