Riak Search uses a custom backend called Merge Index. The Riak Search
backend is configurable in app.config, however, Merge Index is the only
backend that works for search:
 {riak_search, [
                {search_backend, merge_index_backend},
                {java_home, "/usr"}
               ]},

Merge index is configurable in app.config as well:
%% Merge Index Config
 {merge_index, [
                {data_root, "data/merge_index"},
                {buffer_rollover_size, 10485760},
                {buffer_delayed_write_size, 524288},
                {buffer_delayed_write_ms, 2000},
                {max_compact_segments, 20},
                {segment_query_read_ahead_size, 65536},
                {segment_compaction_read_ahead_size, 5242880},
                {segment_file_buffer_size, 20971520},
                {segment_delayed_write_size, 20971520},
                {segment_delayed_write_ms, 10000},
                {segment_full_read_size, 20971520},
                {segment_block_size, 32767},
                {segment_values_staging_size, 1000},
                {segment_values_compression_threshold, 0},
                {segment_values_compression_level, 1}
               ]},

The data_root parameter will tell Merge Index where to store it's data
files.

Does this answer your question?

Thanks,
Dan

Daniel Reverri
Developer Advocate
Basho Technologies, Inc.
d...@basho.com


On Tue, Oct 12, 2010 at 9:51 AM, Germain Maurice <
germain.maur...@linkfluence.net> wrote:

>  Hi everybody,
>
> Is there any requirements concerning riak storage backend when we are using
> Riak Search ?
> I think it's independant but we have to be insured about this.
>
> Thank you..
>
> --
> Germain Maurice
> Administrateur Système/Réseau
> Tel : +33.(0)1.42.43.54.33
>
> http://www.linkfluence.net
>
>
> _______________________________________________
> riak-users mailing list
> riak-users@lists.basho.com
> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
>
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