Oops. Forgot to reply all.
Dan suggested I try keep: true in the reduce phase, but it turns out that
didn't make a difference. Can anyone else spot a hole in my query below?
Are there logs I can look at to debug errors in the reduce phase?
Hi Dan,
Here's the query as I have it for debug purposes, including the wonky reduce
phase. I might add that this query works on my local machine (Mac OS, Riak
0.9.1, not Innostore). The remote machine is Ubuntu 9.10, Amazon EC2
32-bit, Innostore, Riak 0.9.1.
I'm generating the query in Ruby. Also, beware.. I'm a n00b. If this code is
making obvious idiomatic errors, I'd be happy to receive your suggestions.
Thanks,
Jimmy
query = {
'inputs' => 'events',
'query' => [
{'map' => { # go get annotations
'language' => 'javascript',
'source' => <<-END
function(v) {
var d = Riak.mapValuesJson(v)[0]
if (d.type == "checkin" && (#{guard_expression}))
return [[v.bucket, v.key], [v.key + ',annotation',
'spend']]
else
return []
}
END
}},
{'map' => {
'language' => 'javascript',
'source' => # verify the annotations exist
'function(v) {
if ("values" in v && "bucket" in v)
return [[v.bucket, v.key]]
else
return []
}'}},
{'map' => { # prep for reduce phase
'language' => 'javascript',
'source' =>
'function(v,k,a) {
return [v]
}'}},
{'reduce' => { # does the reduce phase work?
'language' => 'javascript',
'source' =>
'function(v, a) {
return v
}'}},
]}
On Thu, Apr 29, 2010 at 9:18 PM, Dan Reverri <reve...@gmail.com> wrote:
> What's the map phase function?
>
> On Thu, Apr 29, 2010 at 6:14 PM, Jimmy Thrasher <ji...@groopd.com> wrote:
>
>> Hi everyone. Hope you're doing well. Tried this on the IRC channel, but
>> I guess it was dinner time. :)
>>
>> I have a query which, up until today, has worked quite well. The data
>> currently coming out of the map phases are all correct looking, but the
>> minute I start a reduce, I get [] as the result.
>>
>> Currently, for debug, my only reduce function looks like this:
>> function(values) {
>> return values
>> }
>>
>> If I remove all the reduce phases, I get, say, 2 items out of the query.
>> But if I put that reduce function in, I get only [].
>>
>> Is this something anyone has seen before? How should I go about debugging
>> it?
>>
>> Thanks for any direction you can give.
>>
>> Jimmy
>>
>>
>> _______________________________________________
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>> riak-users@lists.basho.com
>> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
>>
>>
>
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