Date format for Riak Search and its JSON output

Rusty Klophaus rusty at basho.com
Thu Nov 4 14:42:25 EDT 2010


Hi Nicolas,

Thank you for the excellent description of the problem. There are currently
issues/bugs around date support in Riak Search, looks like you found
another. I'd recommend treating dates as strings for now. The issue you
described is now tracked here: https://issues.basho.com/show_bug.cgi?id=864

<https://issues.basho.com/show_bug.cgi?id=864>Best,
Rusty

On Thu, Nov 4, 2010 at 9:17 AM, Nicolas Fouché <nicolas at silentale.com>wrote:

> Hi,
>
> I can't find the right format for dates in Riak Search, for fields
> suffixed with "_dt". I tried rfc822 (e.g. "Thu, 04 Nov 2010 16:02:59
> -0000"), and xmlschema/iso8601 (e.g. "2010-11-04T16:07:43Z"), but I
> get an {unhandled_type,date} error when requesting my data in JSON. No
> problem with XML.
>
> Here are the HTTP queries to reproduce the error:
>
> # Get the bucket props
>
> GET http://127.0.0.1:8098/riak/models?keys=false
>        {"Accept"=>"multipart/mixed, application/json;q=0.7, */*;q=0.5",
> "X-Riak-ClientId"=>"A1Q9KQ=="}
>
> # Set the pre-commit search hook
>
> PUT http://127.0.0.1:8098/riak/models
>        {"Accept"=>"multipart/mixed, application/json;q=0.7, */*;q=0.5",
> "X-Riak-ClientId"=>"A1Q9KQ==", "Content-Type"=>"application/json"}
>
>  {"props":{"precommit":[{"mod":"riak_search_kv_hook","fun":"precommit"}]}}
>
> # Check if there are any keys to delete
>
> GET http://127.0.0.1:8098/riak/models?props=false&keys=true
>        {"Accept"=>"multipart/mixed, application/json;q=0.7, */*;q=0.5",
> "X-Riak-ClientId"=>"A1Q9KQ=="}
>
> # Post a JSON document with a date in rfc822 (day-of-week, DD
> month-name CCYY hh:mm:ss zone)
>
> POST http://127.0.0.1:8098/riak/models?returnbody=true
>        {"Accept"=>"multipart/mixed, application/json;q=0.7, */*;q=0.5",
> "X-Riak-ClientId"=>"A1Q9KQ==", "Content-Type"=>"application/json"}
>        {"time_dt":"Thu, 04 Nov 2010 16:02:59 -0000","value":"a value like
> any other value","_type":"Model"}
>
> # Search for the object and request a JSON ouput => KO
>
> GET http://127.0.0.1:8098/solr/models/select?q=value%3Aother&wt=json
>        {"Accept"=>"multipart/mixed, application/json;q=0.7, */*;q=0.5",
> "X-Riak-ClientId"=>"A1Q9KQ=="}
>
>  <html><head><title>500 Internal Server
> Error</title></head><body><h1>Internal Server Error</h1>The server
> encountered an error while processing this
> request:<br><pre>{error,{throw,{unhandled_type,date},
>                [{riak_solr_output,convert_type,2},
>                 {riak_indexed_doc,'-to_mochijson2/2-lc$^0/1-0-',2},
>                 {riak_indexed_doc,'-to_mochijson2/2-lc$^0/1-0-',2},
>                 {riak_indexed_doc,to_mochijson2,2},
>                 {riak_solr_output,'-json_response/7-lc$^0/1-0-',2},
>                 {riak_solr_output,json_response,7},
>                 {riak_solr_searcher_wm,to_json,2},
>
>
> {webmachine_resource,resource_call,3}]}}</pre><P><HR><ADDRESS>mochiweb+webmachine
> web server</ADDRESS></body></html>[nfo@
> 17:13:46]~/Code/tests/riak/search
>
> # Search for the object and request a XML ouput => OK
>
> GET http://127.0.0.1:8098/solr/models/select?q=value%3Aother&wt=xml
>
>  <?xml version="1.0" encoding="UTF-8"?>
>  <response>
>    <lst name="responseHeader">
>      <int name="status">0</int>
>      <int name="QTime">1</int>
>      <lst name="params">
>        <str name="indent">on</str>
>        <str name="start">0</str>
>        <str name="q">value:other</str>
>        <str name="q.op">or</str>
>        <str name="df">value</str>
>        <str name="wt">standard</str>
>        <str name="version">1.1</str>
>        <str name="rows">2</str>
>      </lst>
>    </lst>
>    <result name="response" numFound="1" start="0" maxScore="0.500000">
>      <doc>
>        <str name="id">67rGKh9XJSZBsPeet0LpdCzi1hz
>        </str>
>        <str name="_type">Model
>        </str>
>        <date name="time_dt">Thu, 04 Nov 2010 16:02:59 -0000
>        </date>
>        <str name="value">a value like any other value
>        </str>
>      </doc>
>    </result>
>  </response>
>
> -- Nicolas
>
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