that is great. Is it possible to serialize and deserialize a RAMDirectory?
--Noble On Mon, Apr 13, 2009 at 3:29 PM, Michael McCandless <luc...@mikemccandless.com> wrote: > Lucene's ConcurrentMergeScheduler spawns threads, but you can switch > that to SerialMergeScheduler which does not use threads. > > Some optional classes (FilterManager, ParallelMultiSearcher, > TimeLimitedCollector) spawn threads, but presumably you could avoid > them. > > Otherwise Lucene doesn't create its own threads. > > Mike > > On Mon, Apr 13, 2009 at 5:20 AM, Erdinc Yilmazel > <erdincyilma...@gmail.com> wrote: >> I looked at the lucene source code out of curiosity to see if it >> spawns threads in indexing/searching and saw that it does. Are you >> sure it is going to work even if the index is read only? >> >> Erdinc >> >> 2009/4/13 Noble Paul നോബിള് नोब्ळ् <noble.p...@gmail.com>: >>> On Mon, Apr 13, 2009 at 1:10 PM, Chris Lu <chris...@gmail.com> wrote: >>>> Surely it's possible, but it has too much limitations to prevent a scalable >>>> Luceen usage. However, it depends on your requirement. >>>> >>>> 1) You can not write index on disk, but you can read files. So >>>> theoretically >>>> if the index is read-only and small, you can package it with the war file. >>> I can probably write the whole index as Blob and read it and serve >>> the index from RAM. This index can be loaded once in the start time >>> and i can setup a cron task to see if it got updated >>>> >>>> 2) If you need to update the index, you will have to store the index with >>>> Google's data store, just like store an index into databases. Sure it'll >>>> work. But performance would suffer because of transferring the whole index >>>> into memory, then really start searching. On the other hand, this could be >>>> a >>>> good solution for small index with per-user data. >>> as you said this is a solution if the index size is small >>> >>>> >>>> 3) For large changing indexes, you need to find other solutions to maintain >>>> lucene index. >>>> >>>> My personal opinion is, finding a $20/month VPS hosting is far easier than >>>> changing the way to code. >>> >>> The point is ,does Lucens use threads internally which the sandbox disallows >>> >>>> >>>> -- >>>> Chris Lu >>>> ------------------------- >>>> Instant Scalable Full-Text Search On Any Database/Application >>>> site: http://www.dbsight.net >>>> demo: http://search.dbsight.com >>>> Lucene Database Search in 3 minutes: >>>> http://wiki.dbsight.com/index.php?title=Create_Lucene_Database_Search_in_3_minutes >>>> DBSight customer, a shopping comparison site, (anonymous per request) got >>>> 2.6 Million Euro funding! >>>> >>>> >>>> Noble Paul ??????? ?????? wrote: >>>>> >>>>> Is it possible to run Lucene in google app engine? has anyone tried it? >>>>> >>>>> >>>>> >>>>> >>>> >>>> >>>> --------------------------------------------------------------------- >>>> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >>>> For additional commands, e-mail: java-user-h...@lucene.apache.org >>>> >>>> >>> >>> >>> >>> -- >>> --Noble Paul >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >>> For additional commands, e-mail: java-user-h...@lucene.apache.org >>> >>> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> For additional commands, e-mail: java-user-h...@lucene.apache.org >> >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > > -- --Noble Paul --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
