Argh, i replied directly to Dan :/

==========
Hi Germain,

You can use Riak Search as you would a normal installation of Riak KV; Riak Search is a superset of Riak KV. You can modify the riak_kv portion of Riak Search exactly as you would a typical Riak KV installation.

One thing to note; along with index data Riak Search will also store a representation of indexed documents as an object in Riak KV. For example, indexing a document in the "search" index will do the following: 1. Store indexed data in the Merge Index backend using the merge_index data_root
2. Store a new document in Riak KV using the configured backend:
Bucket: _rsid_search
Key: DocId
Value: Data from the document

The document's data representation could be retrieved through the standard REST API as follows:
http://localhost:8098/riak/_rsid_search/DocId

Thanks,
Dan

Daniel Reverri
Developer Advocate
Basho Technologies, Inc.
[email protected] <mailto:[email protected]>


On Tue, Oct 12, 2010 at 12:11 PM, Germain Maurice <[email protected] <mailto:[email protected]>> wrote:
Not really Dan, it was about pure data storage not about indexes storage.

I just tried Riak Search with Innostore for my buckets and it works, i was a bit hurry (and it was simple to make some test).
However, thank you for having answered.

Le 12/10/10 20:47, Dan Reverri a écrit :
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.
[email protected] <mailto:[email protected]>


On Tue, Oct 12, 2010 at 9:51 AM, Germain Maurice <[email protected] <mailto:[email protected]>> 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


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