hadoop-hdfs-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Ioan Eugen Stan <stan.ieu...@gmail.com>
Subject Re: delete in sequence file
Date Tue, 20 Mar 2012 23:07:46 GMT
2012/3/20 kim young ill <khiemu@googlemail.com>:
> On Tue, Mar 20, 2012 at 5:35 PM, Ioan Eugen Stan <stan.ieugen@gmail.com>
> wrote:
>> Pe 20.03.2012 18:18, Manish Bhoge a scris:
>>> Kim,
>>> Interesting to know how to handle segment in sequence. Just want to
>>> understand the application of deleting the segment rather than the file
>>> itself in a sequence.
>>> Sorry for not providing solution here. But I would like to understand the
>>> application at first place.
>>> Thank you,
>>> Manish.
>>> Sent from my BlackBerry, pls excuse typo
> Hi,
> just imagine one wants to save conversations, log-entries,
> blog-entries,emails... to files, one would also want to delete/change one
> entry in the middle. for some reason i want to avoid a database. each
> text-segment to a seperate file isnt a good idea, right ?
> thanx
> kim

Depends on your use case. How much date are you thinking about? Hadoop
is justified only if you wish to do large scale processing, and a
single machine can't do the job. And it has some limitations regarding
what you can do. It's designed with write once, read many times ideas
in mind.

Ioan Eugen Stan

View raw message