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Posted to dev@drill.apache.org by Bob Rumsby <br...@maprtech.com> on 2014/08/05 03:30:29 UTC

SHOW FILES output

Do the values for *accessTime* and *modificationTime* have any special
meaning? Just when the file/directory was last read/updated? Or does
*access* mean access by Drill?

Re: SHOW FILES output

Posted by David Tucker <dt...@maprtech.com>.

And remember, "accessTime" is not tracked in MapR FS for performance reasons.   This is not unique to MapR ... most distributed file systems avoid the bottle neck of updating accessTime metadata by default.

-- David

On Aug 4, 2014, at 6:42 PM, Steven Phillips wrote:

> That is simply filesystem metadata, not specific to drill. Same thing you
> would get if you ran stat on the file.
> 
> 
> On Mon, Aug 4, 2014 at 6:30 PM, Bob Rumsby <br...@maprtech.com> wrote:
> 
>> Do the values for *accessTime* and *modificationTime* have any special
>> meaning? Just when the file/directory was last read/updated? Or does
>> *access* mean access by Drill?
>> 
> 
> 
> 
> -- 
> Steven Phillips
> Software Engineer
> 
> mapr.com

Re: SHOW FILES output

Posted by Steven Phillips <sp...@maprtech.com>.

That is simply filesystem metadata, not specific to drill. Same thing you
would get if you ran stat on the file.

On Mon, Aug 4, 2014 at 6:30 PM, Bob Rumsby <br...@maprtech.com> wrote:

> Do the values for *accessTime* and *modificationTime* have any special
> meaning? Just when the file/directory was last read/updated? Or does
> *access* mean access by Drill?
>

-- 
 Steven Phillips
 Software Engineer

 mapr.com