Comments on: A quick look at CouchDB Performance http://userprimary.net/user/2007/12/16/a-quick-look-at-couchdb-performance/ Seth Falcon blogs about programming, technology, and life in Seattle Fri, 05 Sep 2008 18:02:57 +0000 http://wordpress.org/?v=2.6 By: Seth http://userprimary.net/user/2007/12/16/a-quick-look-at-couchdb-performance/#comment-4803 Seth Thu, 20 Dec 2007 04:50:03 +0000 http://userprimary.net/user/2007/12/16/a-quick-look-at-couchdb-performance/#comment-4803 For those interested, here is the script I used to do these tests: http://userprimary.net/software/couchdb_sit_test.rb It is a thing of expedience rather than beauty. The batch bulk load mentioned at the end is not in this script and is left as an exercise for the reader :-P For those interested, here is the script I used to do these tests:

http://userprimary.net/software/couchdb_sit_test.rb

It is a thing of expedience rather than beauty. The batch bulk load mentioned at the end is not in this script and is left as an exercise for the reader :-P

]]> By: Seth http://userprimary.net/user/2007/12/16/a-quick-look-at-couchdb-performance/#comment-4802 Seth Wed, 19 Dec 2007 19:49:59 +0000 http://userprimary.net/user/2007/12/16/a-quick-look-at-couchdb-performance/#comment-4802 @Brian, @John: Yes, I will post the code, but probably won't get a chance till tomorrow. Stay tuned. @Brian, @John:

Yes, I will post the code, but probably won’t get a chance till tomorrow. Stay tuned.

]]> By: John http://userprimary.net/user/2007/12/16/a-quick-look-at-couchdb-performance/#comment-4801 John Wed, 19 Dec 2007 19:29:13 +0000 http://userprimary.net/user/2007/12/16/a-quick-look-at-couchdb-performance/#comment-4801 I second the request. I'm just beginning to get interested in CouchDB and I prefer to stay with Ruby. It is really helpful to learn from working code! I second the request. I’m just beginning to get interested in CouchDB and I prefer to stay with Ruby. It is really helpful to learn from working code!

]]> By: Brian P O'Rourke http://userprimary.net/user/2007/12/16/a-quick-look-at-couchdb-performance/#comment-4800 Brian P O'Rourke Wed, 19 Dec 2007 09:39:20 +0000 http://userprimary.net/user/2007/12/16/a-quick-look-at-couchdb-performance/#comment-4800 Great post. It would be nice to see the code you used for these performance tests... any chance you could make it available? Great post. It would be nice to see the code you used for these performance tests… any chance you could make it available?

]]> By: Phil http://userprimary.net/user/2007/12/16/a-quick-look-at-couchdb-performance/#comment-4797 Phil Wed, 19 Dec 2007 05:54:02 +0000 http://userprimary.net/user/2007/12/16/a-quick-look-at-couchdb-performance/#comment-4797 > The hardest part here was figuring out that you have to require ‘rubygems’ to use gems. If Ruby can find rubygems after I install it and if I call gem install as root, why can’t Ruby find those packages without additional help? Ruby gems isn't part of the standard ruby distribution yet; it's just an external library. As such Ruby core doesn't know anything about it till you tell it. Gem is slated to be added to the standard library soon (1.9?) but until then you have to require it explicitly. > The hardest part here was figuring out that you have to require ‘rubygems’ to use gems. If Ruby can find rubygems after I install it and if I call gem install as root, why can’t Ruby find those packages without additional help?

Ruby gems isn’t part of the standard ruby distribution yet; it’s just an external library. As such Ruby core doesn’t know anything about it till you tell it. Gem is slated to be added to the standard library soon (1.9?) but until then you have to require it explicitly.

]]> By: Damien Katz http://userprimary.net/user/2007/12/16/a-quick-look-at-couchdb-performance/#comment-4796 Damien Katz Wed, 19 Dec 2007 01:22:29 +0000 http://userprimary.net/user/2007/12/16/a-quick-look-at-couchdb-performance/#comment-4796 Here's my response: <a href="http://damienkatz.net/2007/12/couchdb_perform_1.html" rel="nofollow">http://damienkatz.net/2007/12/couchdb_perform_1.html</a> Here’s my response: http://damienkatz.net/2007/12/couchdb_perform_1.html

]]> By: Jan http://userprimary.net/user/2007/12/16/a-quick-look-at-couchdb-performance/#comment-4789 Jan Mon, 17 Dec 2007 08:55:43 +0000 http://userprimary.net/user/2007/12/16/a-quick-look-at-couchdb-performance/#comment-4789 Heya Seth, this is a nice overview, thanks! It's also a nice justification, that it pays off to aim for an easy installation. :) You are correct about your observations and for the moment, CouchDB behaves as expected. With the disk spaces: The trade-off is speed and consistency vs. space. In the future, it will be able to 'compact' databases on the go. Until then you can periodically copy a database's documents en-bulk to a new database to achieve the same. About the memory limit and crashing server: We are, at the moment, looking into solutions to bring CouchDB up automatically after a crash. One more thing to note is that CouchDB does not include any security or authentication mechanisms. So use with care. Cheers, Jan -- Heya Seth,
this is a nice overview, thanks! It’s also a nice justification, that it pays off to aim for an easy installation. :)

You are correct about your observations and for the moment, CouchDB behaves as expected. With the disk spaces: The trade-off is speed and consistency vs. space. In the future, it will be able to ‘compact’ databases on the go. Until then you can periodically copy a database’s documents en-bulk to a new database to achieve the same.

About the memory limit and crashing server: We are, at the moment, looking into solutions to bring CouchDB up automatically after a crash.

One more thing to note is that CouchDB does not include any security or authentication mechanisms. So use with care.

Cheers,
Jan
–

]]> By: Seth http://userprimary.net/user/2007/12/16/a-quick-look-at-couchdb-performance/#comment-4788 Seth Mon, 17 Dec 2007 01:45:25 +0000 http://userprimary.net/user/2007/12/16/a-quick-look-at-couchdb-performance/#comment-4788 Sorry about the lame formatting of the ascii tables. I fought with Wordpress a bit, but with limited success. What a PITA. Dear Wordpress, what part of "this is code, don't touch it", don't you understand? Sorry about the lame formatting of the ascii tables. I fought with Wordpress a bit, but with limited success. What a PITA. Dear Wordpress, what part of “this is code, don’t touch it”, don’t you understand?

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