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Date: Sun, 10 Nov 2013 16:10:56 -0500
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 <CAMGHjARqtzUWujNn6EW-v1BAk=XYSp3_Ru8VNwgmeYb_M=m8Zw@mail.gmail.com>
Subject: Re: Storage limitations?
From: Mark Deibert <mark.deibert@gmail.com>
To: "user@couchdb.apache.org" <user@couchdb.apache.org>
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Each comment is normally a very small amount of information, and id,
userName, a date and a small text field. Probably no more than a short
sentence on average. Why do I need to go through the trouble of creating
new comment docs for each? This totally complicates the comment read code
(there will 1000 reads to every 1 write, at least) both in the UI and the
db for no reason.


On Sun, Nov 10, 2013 at 1:34 PM, Jens Alfke <jens@couchbase.com> wrote:

>
> On Nov 9, 2013, at 11:47 AM, Robert Newson <rnewson@apache.org<mailto:
> rnewson@apache.org>> wrote:
>
> attachments are different to documents. They're stored as a series of
> binary chunks and so they can be streamed in and out, you can go large
> with attachments.
>
> But on the other hand, all attachments will get copied during a database
> compaction, so they slow down the process and require more free disk spac=
e.
> If you have many gigabytes of attachments, you might consider storing the=
m
> externally and putting URL links in the documents.
>
> As for comments, just add new documents for each comment and use a
> view (https://wiki.apache.org/couchdb/HTTP_view_API,
> https://wiki.apache.org/couchdb/View_collation) to bring the article
> and comment thread together. No need to update a document that way.
>
> Yup. The guide <guide.couchdb.org<http://guide.couchdb.org>> has a
> chapter-long example of a blog application that shows how to do comments
> this way.
>
> =97Jens
>

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