Mailing-List: contact dev-help@jackrabbit.apache.org; run by ezmlm
Precedence: bulk
Reply-To: dev@jackrabbit.apache.org
Received-SPF: pass (asf.osuosl.org: domain of marcel.reutegger@gmx.net
 designates 213.165.64.20 as permitted sender)
Message-ID: <44F84CF0.4090905@gmx.net>
Date: Fri, 01 Sep 2006 17:08:32 +0200
From: Marcel Reutegger <marcel.reutegger@gmx.net>
User-Agent: Thunderbird 1.5 (Windows/20051201)
MIME-Version: 1.0
To: dev@jackrabbit.apache.org
Subject: Re: Jackrabbits own FileSystem and unit tests
References: <ecnbqh$g75$1@sea.gmane.org>
	 <510143ac0608270703h78e4863bm8a2040aca36455c4@mail.gmail.com>
	 <ecvd82$oa5$1@sea.gmane.org>
	 <90a8d1c00608300308w73ff275cp987296f40f3fe924@mail.gmail.com>
	 <ed4bn5$7c6$1@sea.gmane.org>
 <90a8d1c00608300910h72d77267uf1813bcc2e91f2b0@mail.gmail.com>
 <ed4ei6$jn0$1@sea.gmane.org> <44F6888B.7070202@gmx.net>
 <ed6al2$6sh$1@sea.gmane.org> <44F6C6F6.8090704@gmx.net>
 <ed6ivn$2q9$1@sea.gmane.org> <44F718A7.6080303@gmx.net>
 <ed9fct$f8r$1@sea.gmane.org>
In-Reply-To: <ed9fct$f8r$1@sea.gmane.org>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

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