Hi!
I am very excited to announce the availability of Solr 4.1 with
RankingAlgorithm40 1.4.7 with realtime-search (multiple granularities).
realtime-search is very fast NRT and allows you to not only lookup a
document by id but also allows you to search in realtime, see
http://tgels.org/realtime-nrt.jsp. The update performance is about
70,000 docs / sec and can scale up to 2 billion docs . The query
performance is in ms, allows you to query a 10m wikipedia index
(complete index) in <50 ms.
This release introduces realtime-search with multiple granularities,
request/intra-request. The granularity attribute controls the NRT
behavior. With attribute granularity="request", all search components
like search, faceting, highlighting, etc. will see a consistent view of
the index and will all report the same number of documents. With
granularity="intrarequest", the components may each report the most
recent changes to the index. realtime-search has been contributed back
to Apache Solr, please see
https://issues.apache.org/jira/browse/SOLR-3816 (the new request
granularity patch).
This release also includes the experimental TimedSerialMergeScheduler
that allows you to postpone your merges to an off hours time like 11pm
or 1am increasing performance.
RankingAlgorithm 1.4.7 supports the entire Lucene Query Syntax, ± and/or
boolean/dismax/glob/regular expression/wildcard/fuzzy/prefix/suffix
queries with boosting, etc. and is compatible with the new Lucene 4.0 api.
You can get more information about realtime-search performance from here:
http://solr-ra.tgels.org/wiki/en/Near_Real_Time_Search_ver_4.x
You can download Solr 4.1 with RankingAlgorithm40 1.4.7 from here:
http://solr-ra.tgels.org
Please download and give the new version a try.
Regards,
Nagendra Nagarajayya
http://solr-ra.tgels.org
http://elasticsearch-ra.tgels.org
http://rankingalgorithm.tgels.org
Note:
1. Apache Solr 4.1 with RankingAlgorithm40 1.4.7 is an external project.
