Re: Segments creation

From: Erik Hatcher <[EMAIL PROTECTED]> To: java-user@lucene.apache.org Sent: Monday, April 24, 2006 4:38:48 AM Subject: Re: Segments creation To be honest, I have to look up what has been written on this topic to get the answer right myself. Otis did a thorough write-up in "Lucene

Re: Segments creation

To be honest, I have to look up what has been written on this topic to get the answer right myself. Otis did a thorough write-up in "Lucene in Action". Lucene's javadocs also cover these factors here: loo

Re: Segments creation

Thanks for the responses. For fault tolerance, we have decided to set the "mergeFactor" to 1, ie, we want to update the on-disk index every time a document is added via addDocument(). My question was that will this create a new segment every time? Or is there a separate "segmentFactor", such that a

Re: Segments creation

If you use the compound format, all "files" are kept inside a single filesystem file. Erik On Apr 23, 2006, at 2:13 PM, John Paige wrote: So, if I use one indexwriter instance to index one document, will it create a segment per document? How many files per segment get added if I u

Re: Segments creation

So, if I use one indexwriter instance to index one document, will it create a segment per document? How many files per segment get added if I use compound index file format? Thanks, John On 4/23/06, Erik Hatcher <[EMAIL PROTECTED]> wrote: > > If you use the compound index file format (the default

Re: Segments creation

If you use the compound index file format (the default since Lucene 1.4) you'll avoid the file descriptors issue. If you add 10 documents at one time with a single IndexWriter, you will not create 10 segments, only one segment (generally speaking, based on the default segment factors).

Segments creation

Hello all, In my application it is required to build an index for each user. We need to add documents to the existing index frequently. We cannot use RAMDirectory to create a RAM index and merge it with the FSDirectory index later on based on the mergefactor. We need to add each document in the