Ruby client - problem listing bucket keys

Sean Cribbs sean at
Sun Oct 24 11:15:37 EDT 2010


There is a simple fix for this (which I believed was in there already).  First of all, install the json or yajl-ruby gems (the default parsing from ActiveSupport is bad). Then add this to your script:

ActiveSupport.parse_json_times = false

ActiveSupport tries to be smart about parsing strings that look like dates or times into Date/Time objects. I've found it to be a nuisance, especially in use-cases like the one you have.

Sean Cribbs <sean at>
Developer Advocate
Basho Technologies, Inc.

On Oct 23, 2010, at 6:51 PM, Ted Behling wrote:

> Hi,
> I am new to Riak but am starting to get familiar with it.  I've been going through the "Riak Fast Track" tutorial, and am using the riak-client Ruby gem.  Sadly, I think I have found some broken behavior in the Ruby client.  I'm hoping maybe the maintainer of the riak-client gem can help?
> The issue is that if my Riak keys look like "dates", such as "2010-01-01", then if I invoke the "keys" method on a Riak::Bucket object, I get an error.  Non-date-looking keys work fine.
> Here are some commands that reproduce the problem, from an OS X command line:
> ---------
> # This successfully creates a new bucket called "broken" and assigns a value to the key "2010-01-01"
> $ curl -X PUT -d '{"bar":"baz"}' -H "Content-Type: application/json"
> # I can successfully retrieve the specific key using a Ruby one-liner
> $ ruby -e "require 'rubygems'; require 'riak'; puts'broken')['2010-01-01'].data.inspect"
> curb library not found! Please `gem install curb` for better performance.
> {"bar"=>"baz"}
> # A Ruby exception results when I list the keys.  Note where it's trying to invoke "tr" on a Date object, shown here formatted as a different string than the Riak key
> $ ruby -e "require 'rubygems'; require 'riak'; puts'broken').keys"
> curb library not found! Please `gem install curb` for better performance.
> /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/cgi.rb:352:in `unescape': undefined method `tr' for Fri, 01 Jan 2010:Date (NoMethodError)
>        from /Library/Ruby/Gems/1.8/gems/riak-client-0.8.2/lib/riak/bucket.rb:48:in `load'
>        from /Library/Ruby/Gems/1.8/gems/riak-client-0.8.2/lib/riak/bucket.rb:48:in `map'
>        from /Library/Ruby/Gems/1.8/gems/riak-client-0.8.2/lib/riak/bucket.rb:48:in `load'
>        from /Library/Ruby/Gems/1.8/gems/riak-client-0.8.2/lib/riak/bucket.rb:69:in `keys'
>        from -e:1
> ---------
> Clearly, something here is trying to be "helpful" by translating the string "2010-01-01" to a Date object.  This is the wrong behavior, because Riak keys are strings and should always be strings.  Correct behavior would be to not interpret "date-looking" or other "special appearance" strings, and just treat all key strings literally.
> Here are the relevant software versions I am running:
> Mac OS X 10.6
> riak-0.13.0-osx-i386 (downloaded from Basho)
> ruby 1.8.7 (2009-06-12 patchlevel 174) [universal-darwin10.0]
> Rubygems version 1.3.7
> riak-client gem, 0.8.2, installed with "gem install riak-client"
> activesupport gem, 2.3.8
> I hope someone can fix this issue.  If I can contribute a patch, or you would like me to help test a patch, please let me know what's needed.
> Best regards,
> Ted Behling
> RHCE, Network+
> ted at
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> riak-users mailing list
> riak-users at

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