key not found in map reduce

Mridul Kashatria mridul at readwhere.com
Mon Oct 1 03:46:49 EDT 2012


Thanks. This issue is solved.

--
Mridul

On Monday 01 October 2012 10:33 AM, Venki Yedidha wrote:
> Hi Mridul,
>        You can use filterNotFound from mapred_builtins.js...
>        usage format in reduce phase:
>        return  Riak.filterNotFound(your_object_passed _from_map_phase);
>
> Thanks,
> Venkatesh
>
>
> On Sun, Sep 30, 2012 at 2:59 PM, Mridul Kashatria 
> <mridul at readwhere.com <mailto:mridul at readwhere.com>> wrote:
>
>     Hi,
>
>     I'm a beginner with Riak and map-reduce in general.
>
>     I was trying a function in map reduce which sorts the data and
>     returns it. It works well when all the bucket key pairs in input
>     query exist in the riak cluster. When a bucket/key pair does not
>     exist, it gives an output like below.
>
>
>     [{"not_found":{"bucket":"newspaper-issue","key":"56276","keydata":"undefined"}}]
>
>     I'm not able to remove this output from the map phase, even when I
>     just return [] in the map phase, it returns this single object.
>
>     My question is how can I avoid this output as it is likely that in
>     the inputs there is some bucket/key missing.
>
>     --
>     Mridul
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>

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