...btw I've found with the key filter, I have to supply a JavaScript map function if I want to use a JS reduce function. If I use just a JS reduce function I get bad_json errors. However, my understanding is that supplying a map function makes Riak load the key data, where as supplying just a reduce function won't do that. So I'm in a bit of a conundrum about how to preformat the output without issuing a map, since the formatting I want to do is splitting the key name. Thank you for your help.
-J On Thu, Mar 3, 2011 at 1:26 PM, Dan Reverri <d...@basho.com> wrote: > A bug has already been filed for this issue: > https://issues.basho.com/show_bug.cgi?id=1002 > Thanks, > Dan > Daniel Reverri > Developer Advocate > Basho Technologies, Inc. > d...@basho.com > > > On Thu, Mar 3, 2011 at 12:19 PM, Dan Reverri <d...@basho.com> wrote: >> >> Hi Jason, >> I'm able to reproduce the issue when the keys I am filtering do not >> contain the token. For example, if my token is "-" and my key is >> "helloworld" the tokens for that key become: >> ["helloworld"] >> Grabbing the second element of that list returns an error: >> 3> string:tokens("helloworld", "-"). >> ["helloworld"] >> 4> lists:nth(2, ["helloworld"]). >> ** exception error: no function clause matching lists:nth(1,[]) >> It seems Riak should catch errors during the filtering process and discard >> keys that cause errors. I will file a bug. >> Thanks, >> Dan >> Daniel Reverri >> Developer Advocate >> Basho Technologies, Inc. >> d...@basho.com >> >> >> On Thu, Mar 3, 2011 at 10:28 AM, Jason J. W. Williams >> <jasonjwwilli...@gmail.com> wrote: >>> >>> If someone could help me understand just this error, that would help a >>> lot: https://gist.github.com/852450 >>> >>> Thank you in advance. >>> >>> -J >>> >>> On Wed, Mar 2, 2011 at 11:55 PM, Jason J. W. Williams >>> <jasonjwwilli...@gmail.com> wrote: >>> > Hi, >>> > >>> > I'm experimenting using key filters to implement indexes. My approach >>> > is for each data key in bucket A, to create a new empty key in a >>> > dedicated index bucket where the original key name and value of the >>> > indexed field is encoded in the key name for a new index key. >>> > >>> > Data key looks like this: >>> > >>> > Bucket - riak_perf_test >>> > Key - ccode_<unique_6_digit_ID> : {"redeemed_count": 23 } >>> > >>> > For each data key created, an index key is created: >>> > >>> > Bucket - idx=redeemed_count=ccode >>> > Key - ccode/23 >>> > >>> > (in both keys 23 changes on a per-key basis based on what >>> > "redeemed_count" is set to) >>> > >>> > >>> > My goal is to be able to do a key filtered Map Reduce job on >>> > idx=redeemed_count=ccode that generates a list of all data key names >>> > with a redeemed_count < 50. >>> > >>> > The job (using curl) is here: https://gist.github.com/852451 >>> > >>> > It errors out almost immediately in sasl-error.log >>> > (https://gist.github.com/852450), but the request doesn't immediately >>> > error out to the client. The only error the client sees is an eventual >>> > timeout error. >>> > >>> > So my question is, what is the error in sasl-error.log telling me is >>> > wrong with my job construction? And also, why is there only a timeout >>> > error generated to the client instead of a map_reduce_error as I've >>> > seen for non-key filtered jobs? >>> > >>> > Thank you in advance for any help. I greatly appreciate it. >>> > >>> > -J >>> > >>> >>> _______________________________________________ >>> riak-users mailing list >>> riak-users@lists.basho.com >>> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com >> > > _______________________________________________ riak-users mailing list riak-users@lists.basho.com http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
