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From Filipe David Manana <fdman...@apache.org>
Subject Re: Couch Replication: slave on-disk size bloat
Date Fri, 08 Apr 2011 10:50:00 GMT
Do you have many and/or large attachments?

On Thu, Apr 7, 2011 at 10:24 PM,  <steve.webb@beatport.com> wrote:
> Hello there.
>
> New couch admin here.
>
> I've got two couchdb machines that are not being written to.
>
> I cleaned off the slave, then replicated and compacted the DBs on the slave
> and the slave DB size on-disk is *way* more than on the master.
>
> Also, we've found that when the slaves are being actively written
> (replicated) to, over time, they grow > 10x the size of the master's file
> size.
>
> Master:
>
> -rw-r--r--  1 couchdb couchdb      20565 Apr  7 12:02 api-keys.couch
> -rw-r--r--  1 couchdb couchdb 2414678118 Apr  7 11:41 similar-tracks.couch
> -rw-r--r--  1 couchdb couchdb  851714150 Apr  7 11:52 sitemap.couch
> drwxr-xr-x  2 couchdb couchdb       4096 Feb 15 01:10 .sitemap_design
> -rw-r--r--  1 couchdb couchdb   76939362 Apr  7 11:27 top-downloads.couch
> -rw-r--r--  1 couchdb couchdb  268513382 Apr  7 11:30
> users-also-bought.couch
>
> Slave (after delete, replication and compaction):
>
> -rw-r--r--  1 couchdb couchdb       8280 Apr  7 12:02 api-keys.couch
> -rw-r--r--  1 couchdb couchdb 5261164653 Apr  7 14:16 similar-tracks.couch
> -rw-r--r--  1 couchdb couchdb  860319850 Apr  7 13:58 sitemap.couch
> -rw-r--r--  1 couchdb couchdb  122777700 Apr  7 13:50 top-downloads.couch
> -rw-r--r--  1 couchdb couchdb  285810794 Apr  7 13:52
> users-also-bought.couch
>
> Q1: Is this normal?
> Q2: Is there a way to fix this or turn off whatever is turned on that causes
> this?
>
> - Steve Webb
>
> --
> Steve Webb | System Administrator
> Beatport | Play With Music
> ------------------------------------------
> 2399 Blake Street, Suite 170
> Denver, Colorado USA 80205
> tel: +1.720.932.9103
> fax: +1.720.932.9104
> noc: +1.303.565.2710
> mobile: +1.303.564.4269
>



-- 
Filipe David Manana,
fdmanana@gmail.com, fdmanana@apache.org

"Reasonable men adapt themselves to the world.
 Unreasonable men adapt the world to themselves.
 That's why all progress depends on unreasonable men."

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