Return-Path: Delivered-To: apmail-jakarta-lucene-user-archive@www.apache.org Received: (qmail 80625 invoked from network); 10 May 2004 08:45:37 -0000 Received: from unknown (HELO mail.apache.org) (209.237.227.199) by minotaur-2.apache.org with SMTP; 10 May 2004 08:45:37 -0000 Received: (qmail 59211 invoked by uid 500); 10 May 2004 08:45:39 -0000 Delivered-To: apmail-jakarta-lucene-user-archive@jakarta.apache.org Received: (qmail 59005 invoked by uid 500); 10 May 2004 08:45:37 -0000 Mailing-List: contact lucene-user-help@jakarta.apache.org; run by ezmlm Precedence: bulk List-Unsubscribe: List-Subscribe: List-Help: List-Post: List-Id: "Lucene Users List" Reply-To: "Lucene Users List" Delivered-To: mailing list lucene-user@jakarta.apache.org Received: (qmail 58987 invoked by uid 98); 10 May 2004 08:45:37 -0000 Received: from vyuryev@rambler.ru by hermes.apache.org by uid 82 with qmail-scanner-1.20 (clamuko: 0.70. Clear:RC:0(81.19.66.30):. Processed in 0.131823 secs); 10 May 2004 08:45:37 -0000 X-Qmail-Scanner-Mail-From: vyuryev@rambler.ru via hermes.apache.org X-Qmail-Scanner: 1.20 (Clear:RC:0(81.19.66.30):. Processed in 0.131823 secs) Received: from unknown (HELO mxb.rambler.ru) (81.19.66.30) by hermes.apache.org with SMTP; 10 May 2004 08:45:37 -0000 Received: from mail5.rambler.ru (mail5.rambler.ru [81.19.66.7]) by mxb.rambler.ru (Postfix) with ESMTP id 0715883516 for ; Mon, 10 May 2004 08:10:29 +0400 (MSD) Received: from [81.19.66.146] (account vyuryev@rambler.ru) by mail5.rambler.ru (CommuniGate Pro WebUser 4.1.8) with HTTP id 22210538 for lucene-user@jakarta.apache.org; Mon, 10 May 2004 08:10:28 +0400 From: "Vladimir Yuryev" Subject: Re: ParallelMultiSearcher To: "Lucene Users List" X-Mailer: CommuniGate Pro WebUser Interface v.4.1.8 Date: Mon, 10 May 2004 08:10:28 +0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="windows-1251"; format="flowed" Content-Transfer-Encoding: 8bit X-Spam-Rating: hermes.apache.org 1.6.2 0/1000/N X-Spam-Rating: minotaur-2.apache.org 1.6.2 0/1000/N Hi, Erik! Thanks for your reply. Vladimir. >> What requirements ParallelMultiSearch to JVM? What the adjustments of >> memory and for processes of system are required? If it somebody knows, >> let it can be on an example anyone of Unix System. > >ParallelMultiSearcher simply spins a separate thread for each index and >waits for the results from all threads before returning results. > >Depending on your hardware, you may or may not receive performance >benefits over using plain MultiSearcher. You would likely need each >index on a separate disk so that you would benefit from parallel I/O. > >Beyond standard multi-threaded Java concerns, there is nothing special >about ParallelMultiSearcher, and tuning would be dependent on your >environment. > > Erik --------------------------------------------------------------------- To unsubscribe, e-mail: lucene-user-unsubscribe@jakarta.apache.org For additional commands, e-mail: lucene-user-help@jakarta.apache.org