A map reduce job is a batch request. It takes in a list of {Bucket,Key}
pairs and returns the result. Though writing map reduce in the erlang PB
client is not exactly as nice as one would think. This is the function I
use:
% P = riak connection
% B = bucket
% LI = list of keys
mget_bin(P,B,LI) ->
Anything in error logs? Last time this happened to me I did not have ulimit
-n set to a high enough number
Sergej
On Tue, Jul 31, 2012 at 9:47 AM, idmartin wrote:
> Not sure if anyone else is running into this... my bucket size isnt too
> big,
> 4 keys or so. I need to reiterate through al
Map reduce starts out as a multiget. If your reduce function is a union of
all data and map is an identity you just have a multiget.
What I use:
B - bucket,
LI - list of keys
mget_bin(P,B,LI) ->
case riakc_pb_socket:mapred(P,[{B,key(Key)} || Key <- LI],
[{reduce, {modfun, riak_kv_mapreduce, redu
On Mon, Oct 22, 2012 at 10:29 AM, Shashwat Srivastava wrote:
>
> Now, each bucket would have conversation between two users or of a room of
> a site. The conversation rate for (some) rooms is very high, some 20,000 -
> 30,000 messages per hour. We have observed that users usually don't access
> co
with a simple 2i
>> index (integer index MMDD for the message date so you can search day by
>> day backward), and for the message sequence or identifier you could either
>> user ANY SQL database sequence or a UUID generator.
>>
>> HTH,
>>
>> Guido.
Attach to riak:
riak attach
run this:
os:cmd("ulimit -n").
Sergej
On Fri, Dec 7, 2012 at 7:45 AM, kser wrote:
> I enter ulimit.
> return: unlimited
>
> I also cat /proc/sys/fs/file-max
> return: 407441
>
> I followed this guide and increase the limit to 81788200
>
> http://www.cyberciti.biz/f
hello,
I've been trying to use the erlang_protobuffs library but the scan_file
function always crashes.
protobuffs_compile:scan_file("../test/erlang_protobuffs_SUITE_data/simple.proto").
=INFO REPORT 31-Dec-2011::19:03:38 ===
Writing header file to "simple_pb.hrl"
** exception error: no matc
Found the problem. pokemon_pb file does not get compiled with debug_info
which is needed for it to work.
rebar.config file is missing this line:
{erl_opts, [debug_info]}.
Sergej
On Mon, Jan 2, 2012 at 10:50 AM, Rapsey wrote:
> hello,
>
> I've been trying to use the erlang_prot
