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From Otis Gospodnetic <>
Subject Re: large index scalability and java 1.1 compatibility question
Date Tue, 20 Jan 2004 00:17:51 GMT
Hello Mike,

Regarding the 1.1 version compatibility - the oldest verion of Java
that Lucene supports it 1.2.  Patches may contain 1.2+ compatible code.


--- Mike Sawka <> wrote:
> We are currently running some multi-gigabyte indexes with over 10
> million documents, and the "optimize" time is starting to become a
> problem.  For our largest indexes we're already seeing times of 10-20
> minutes, on a fairly decent machine, which is starting to hit the
> threshold of acceptability for us (and will become unbearable as the
> index grows 2-10 times larger).  So I've got two questions:
>    * Are there any tricks that you guys use to run large
> (incrementally
> updatable) indexes?  I've already setup a mirroring system so I have
> one
> index that is always searchable while the other one is incrementally
> updating (and they swap periodically).
>    * If not, I was going to work on some targeted patches to help
> with
> our immediate problems (which I hope to contribute back to the
> source).
> My question is whether Lucene is a Java 1.1 project going forward, or
> if
> it is just in the 1.1 style for historical reasons?  I couldn't find
> any
> guidance on the web-site or in the mailing list one way or the other.
> What is the official standard for patches?  Do you guys accept
> non-1.1
> patches, and if so what version of java should we write to?
> Mike Sawka
> Software Developer, Spoke Software
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