[MapServer-users] Accessing FlatGeoBuf (.fgb) in S3 bucket?

[Scott]

Even with the .fgb and LAYER having the same layer name it doesn't work 
FROM S3.

It works fine even with different names IF the .fgb is on local disk 
relative to the web server. It doesn't work if the .fgb is in an AWS S3 
bucket. (note the vsis3 url). ogrinfo to the vsis3 url works fine. 
Raster data on S3 works fine.

Having .fgb accessible from object storage is kinda the whole point of 
the .fgb file format.

Thank for the suggestion!


On 8/28/22 08:34, Patrick Young wrote:
> Hi Scott,
> 
> What does ogrinfo report the name of the layer in "data.fgb" to be? If 
> the layer isn't named "rm_trace" I think you might see that error. FWIW 
> I've served from .fgb's in mapserver in both 7.6.4 and 8.
> 
> Patrick
> 
> On Fri, Aug 26, 2022 at 11:32 AM Scott <public at postholer.com 
> <mailto:public at postholer.com>> wrote:
> 
>     Using mapserver 7.6 or 8rc1 I've never been able to serve .fgb from an
>     S3 bucket. Local disk works fine as does ogrinfo on S3 .fgb. COG raster
>     data works fine off S3.
> 
>     Map file configs:
> 
>     v8rc1:
>     CONNECTIONTYPE flatgeobuf
>     DATA "/vsis3/bucket/path/data.fgb"
> 
>     v7.6.4
>     CONNECTIONTYPE OGR
>     CONNECTION "/vsis3/bucket/path/data.fgb"
>     DATA "rm_trace"
> 
>     v8rc ms_error log:
>     [Fri Aug 26 10:24:13 2022].854479 msDrawMap(): Image handling error.
>     Failed to draw layer named 'rm_trace'.
> 
>     v7.6.4 ms_error log
>     [Fri Aug 26 10:06:59 2022].388096 msOGRFileOpen(): OGR error. Open
>     failed for OGR connection in layer `rm_trace'.  File not found or
>     unsupported format. Check server logs.
>     [Fri Aug 26 10:06:59 2022].388132 Open failed for OGR connection in
>     layer `rm_trace'.
> 
> 
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