see http://issues.apache.org/bugzilla/show_bug.cgi?id=32263
On Tue, 16 Nov 2004 11:04:39 +0000, Jeremy Quinn <[EMAIL PROTECTED]> wrote: > Dear Nicolas > > If you were to provide a patch and send it to bugzilla (then notify me > of the bug #) I would be happy to review it. > > regards Jeremy > > > > > On 15 Nov 2004, at 23:34, Nicolas Maisonneuve wrote: > > > the method to update a document is not optimized (reindexDocument > > method). this actual behavior is : > > > > 1- open reader if not open (but in fact it's always closed because of > > line 3) > > 2-delete document > > 3-close reader > > 4-open writer > > 5- write index > > 6-close index > > > > (NOTE: with this behavior, the merge factor is useless because this > > method index only one document for a opening of indexwriter) > > > > - A optimization in lucene is to avoid to open and close indexreader > > and indexwriter a lot of times. > > > > so i propose this simple optimization : > > 1- open reader if not open > > 2- delete document > > 3-store lucene document in a buffer (Stack) > > > > // flush the buffer > > if ((buffer % max_buffer)==0) { > > > > // switch to write mode > > 4- close reader > > 5- open writer > > for (1 to max_buffer) { > > 6- write > > } > > 7- close writer > > } > > > > > > with this kind of method, > > 1 - > > with a buffer of 100 doc, you divide the number of switching mode > > (writ/read) to 100 , and the indexing is much much faster > > 2- the merge factor is really useful because the indexwriter index > > more than 1 document > > > > > > i've developped a Index component with 2 implemenations > > 1 indexerDefault with this kind of method > > 2- MultiThreadIndexer optimized for multiple CPU > > > > maybe it could be interesting to integred this components to the > > lucene Block > > > > Nicolas Maisonneuve > > > > > -------------------------------------------------------- > > If email from this address is not signed > IT IS NOT FROM ME > > Always check the label, folks !!!!! > -------------------------------------------------------- > > >