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From "Rob Outar" <>
Subject RE: Make Lucene Index distributable
Date Mon, 18 Aug 2003 19:14:01 GMT
We have the Lucene index sitting out on a Linux server and wrote a little
daemon that listens for requests and sends back response objects.  We are a
large scale simulation outfit and it works great.  We also give the node the
ability to index locally.

I published a paper all about it that will be presented at SIW this year.



-----Original Message-----
From: Scott Ganyo []
Sent: Monday, August 18, 2003 3:04 PM
To: Lucene Users List
Subject: Re: Make Lucene Index distributable

Be careful with option 1.  NFS and the Lucene file-based locking
mechanism don't get along extremely well.  (See the archives for details...)


Lienhard, Andrew wrote:

>I can think of three options:
>1) Single index dir on a shared drive (NFS, etc.) which is mounted on each
>app server.
>2) Create copies of the index dir for each machine. Requires regular
>updates, etc (not good if search data changes often).
>3) Create a web service for search. Each app server makes an HTTP call to a
>standalone Lucene app which returns some sort of XML-formatted search
>I've taken approaches 1 and 3 (w/ Verity, but it would likely be the same
>Lucene). 2 is really only good if you have relatively static data. For our
>Lucene rollout here, we're going w/ option 1.
>Andrew Lienhard
>Web Technology Manager
>United Media
>200 Madison Avenue
>New York, NY 10016
>-----Original Message-----
>From: Uhl V., DP ITS, SCB, FD []
>Sent: Monday, August 18, 2003 11:05 AM
>To: ''
>Subject: Make Lucene Index distributable
>Hallo All,
>We have developed our WebApp with Lucene under Tomcat 4.X and stored index
>in file system. Now this Web Application have to move to Bea Weblogic
>Cluster. My Problem is to create a distributable Index of Lucene. Have one
>ideas or experience how to do this?(How to store Index?)
>Thanks for every ideas.
>Mit freundlichen Grüßen
>Vitali Uhl
>Client Server Systeme
>Deutsche Post ITSolutions GmbH
>tel. +49 (0) 661 / 921 -245
>fax: +49 (0) 661 / 921 -111
>internet: <>
>DP ITSolutions GmbH
>D - 36035 Fulda
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