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From Marcel Reutegger <marcel.reuteg...@gmx.net>
Subject Re: Jackrabbits own FileSystem and unit tests
Date Fri, 01 Sep 2006 15:08:32 GMT
lots of answers...

Christoph Kiehl wrote:
> Ok. To get this working, you have to create at least one segment per 
> transaction, right?

not necessarily. as an optimization the current implementation uses 
the redo.log to keep track of index modifications that were only done 
in memory. this means that at the end of a transaction there won't 
necessarily be a new index segment on disk.

> And index merging could be done in background?

index merging *is* already done in the background.

> Sounds really interesting. But if the blob values are cached locally 
> they have to be downloaded on startup first before the index starts to 
> be fast.

correct.

> Or does the blob cache survive restarts?

no, it doesn't.

regards
  marcel

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