Hi,

That’s interesting, well we are using 2.9.3 and it definitely recreated the 
shapefiles when the server loaded. I’ll leave it to the experts to decide if 
that is expected or wanted behaviour but it seems to be possible to replicate 
on that version as far as I can tell. Perhaps just try it and see if it does it 
for you, you just delete the shapefile for an image mosaic layer and hit 
restart, it will either work or not.

I will double check my facts regarding the ECW usage but the main reason we are 
looking to switch is disk space. The ECW files are much smaller and have 
overlays inside the files whilst my GeoTiffs were bigger and I think some (if 
not all) didn’t even have pyramids yet. This means the file size would be 
increased further once I’d resolved that issue and ICT were looking for us to 
reduce the file sizes.

So far we had found that the speed seemed to be improving as the files actually 
have the pyramids / overlays and seem to be reading fast enough.

Cheers,
Paul


From: andrea.a...@gmail.com [mailto:andrea.a...@gmail.com] On Behalf Of Andrea 
Aime
Sent: 05 April 2017 10:32
To: Jonathan Moules <jonathan-li...@lightpear.com>
Cc: Paul Wittle <p.wit...@dorsetcc.gov.uk>; 
geoserver-users@lists.sourceforge.net
Subject: Re: [Geoserver-users] Startup with missing store index

On Wed, Apr 5, 2017 at 11:17 AM, Jonathan Moules 
<jonathan-li...@lightpear.com<mailto:jonathan-li...@lightpear.com>> wrote:
I thought that the missing shapefile indexes were created when you press "Save" 
on the layer, rather than when the server started.

Right, so did I. Up to version 2.10 there was a check on startup for vector 
stores (removed in 2.11 if one also enables the tolerant capabilities document 
generation), but I don't remember seeing an equivalent for raster data sources

Incidentally, why are you switching to ECW from GeoTiff? GeoTiff should 
generally be faster for GeoServer.

Normally the issue is not much the speed per se, but the hefty cost of the 
licence needed to legally use ECW on the server side (ECW libraries are free 
only on the client side).

Cheers
Andrea

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