secondary indexes

Russell Brown russell.brown at mac.com
Wed Jan 18 02:41:40 EST 2017


On 18 Jan 2017, at 03:07, Andy leu <andrewleu at hotmail.com> wrote:

> thank you guys, that helps a lot.
> one more question, do you think solr is a better solution than seconary indexes?

It depends on your use case. There are Riak users who have great success with secondary indexes for their use case, for others solr makes more sense. I personally disagree with the statement at the top of http://docs.basho.com/riak/kv/2.2.0/developing/usage/secondary-indexes/

Cheers

Russell

> 
> andrew
> 
> From: Russell Brown <russell.brown at mac.com>
> Sent: Tuesday, January 17, 2017 3:45:34 PM
> To: Andy leu
> Cc: riak-users at lists.basho.com
> Subject: Re: secondary indexes
>  
> Hi,
> Riak's secondary indexes require a sorted backend, either of the memory or leveldb backends will work, bitcask does not support secondary indexes.
> 
> More details here http://docs.basho.com/riak/kv/2.2.0/developing/usage/secondary-indexes/
> 
> Cheers
> 
> Russell
> 
> On Jan 17, 2017, at 07:13 AM, Andy leu <andrewleu at hotmail.com> wrote:
> 
>> hi:
>> I ran the code as shown in http://docs.basho.com/riak/kv/2.2.0/developing/getting-started/python/querying/.
>> when I tried the lines about secondary index :
>> 
>> october_orders = order_bucket.get_index("order_date_bin"
>> ,
>>                                         
>> "2013-10-01", "2013-10-31"
>> )
>> october_orders.results
>> 
>> 
>> an exception was raised:
>> 
>> riak.riak_error.RiakError: '{error,{indexes_not_supported,riak_kv_bitcask_backend}}'
>> 
>> 
>> can anyone tell me why and how to fix it?
>> Thanks
>> 
>> Andrew
>> 
>> 
>> 
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