I do not think aeletes are really a problem, there are probably many ways to fix that. The problem is to create and keep in sync two(or more) indexes with parallel docIDs.
For example: use DeleteByQuery and feed it with Filter with set bits on docID positions? ----- Original Message ---- > From: Toke Eskildsen <t...@statsbiblioteket.dk> > To: "dev@lucene.apache.org" <dev@lucene.apache.org> > Sent: Fri, 22 October, 2010 14:27:45 > Subject: Re: Polymorphic Index > > On Fri, 2010-10-22 at 11:23 +0200, eks dev wrote: > > Both of these solutions are just better way to do it wrong :) The real >solution > > > is definitely somewhere around ParallelReader usage. > > The problem with parallel is with updates of documents. The IndexWriter > takes terms and queries for deletions and that does not work with the > parallel approach as there must be separate IndexWriters for each index. > There will be no indexed UIDs in the searcher-oriented index, so there > is no way to perform the deletions. > > > Ideally, one should be able to say by opening index which parts of index > > he >is > > > going to be using. One way to do it is to to create Parallel Indexes, >searching > > > part is fully functional and already there. > > That is correct. If IndexWriter accepted docIDs for deletions, the > parallel approach would work (get the docID by searching the parallel > index, then use it for deletions in both indexes). Unfortunately it does > not so you'll need to tweak the IndexWriter. I don't know how hard that > is. > > > Anyone using ParallelReader, any tips on creating parallel indexes? > > I would suggest that you make sure that you can solve the delete-problem > first, before you start creating parallel indexes. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org > For additional commands, e-mail: dev-h...@lucene.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
