java - Lucene Indexing and searching with Map/Reduce -

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possible duplicate:
instant searching in petabyte of data…

how use hadoop's map/reduce in lucene indexing , searching?????

the closest thing find katta:

katta distributed application running on many commodity hardware servers similar hadoop mapreduce, hadoop dfs, hbase, bigtable or hypertable.

(...)

katta supports distributed scoring lucene implementation - because not expect term distribution balanced on shards.

each search query done in katta ends being 2 network roundtrips: first document frequencies query nodes , on second trip pass value , search query nodes. please note provide simple count method counts documents matching query within 1 network roundtrip.


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