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From "Ard Schrijvers" <a.schrijv...@hippo.nl>
Subject RE: Re: improving the scalability in searching
Date Wed, 15 Aug 2007 13:13:44 GMT


> Christoph Kiehl wrote
> There should never be an index where the old and the new 
> format is mixed. Either 
> you have an index without the new field, to which you will 
> never add a document 
> with the new field, or you have an index with the new field 
> which means you can 
> rely on the fact that all documents are in the new format and 
> index your new doc 
> with the new field.
> If you have no index at all you start with a new index to 
> which only documents 
> with the new field will be added. There should be a flag set 
> at startup for 
> example in SearchIndex which indicates if an index is in the 
> new or old format. 
> This flag should be used by NodeIndexer and MatchAllScorer 
> somehow to decide 
> which strategy to use.
> Hope I made my thoughts clear ;) not sure it's understandable.

It is crystal clear: When you have old format, you stay in that format, if you start with
new index, you get the new format. Clear and implementable IMO. I can give it a try and implement
it unless somebody else wants to do it?

Regards Ard

> 
> Cheers,
> Christoph
> 
> 

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