NRT consistency

2011-04-10 Thread Em
Hello list, I am currently trying to understand Lucene's Near-Real-Time-Feature which was covered in "Lucene in Action, Second Edition". Let's say I got a distributed system with a master and a slave. In Solr replication is solved by checking for any differences in the index-directory and to con

Re: NRT consistency

2011-04-10 Thread Michael McCandless
That's a neat question (how to replicate index changes from opening a new NRT reader). The good news, the segments are flushed "like normal", so they can be replicated to the mirror(s). But the bad news is, the segments file is not written to disk -- it's held only in RAM (inside IW and shared to

[Announce] Solr with Near Real Time (NRT) Functionality

2011-04-10 Thread Nagendra Nagarajayya
Hi! I would like to announce Solr with RankingAlgorithm has Near Real Time functionality now. The NRT functionality allows you to add documents without the IndexSearchers being closed or caches being cleared. A commit is not needed with the document update. Searches can run concurrently with