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Often times, nothing is rendered #134

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openstreetmap-trac opened this issue Jul 23, 2021 · 5 comments
Closed

Often times, nothing is rendered #134

openstreetmap-trac opened this issue Jul 23, 2021 · 5 comments

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@openstreetmap-trac
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Reporter: lars[at]aronsson.se
[Submitted to the original trac issue database at 1.00am, Friday, 10th February 2006]

In the last days (after the rendering program was changed?), tiles more often than not turn up without any roads. And in the edit applet, most tiles that should contain yellow crosses to indicate tracklog points, are completely blank.

This sounds a lot like ticket#12, but happens all the more often now. This makes it quite impractical to draw maps.

Leaving single tiles blank could be acceptable if it happened rarely, but it happens very often. And if something cannot be rendered in a tile, perhaps due to an unusual timeout, instead of leaving it blank the tile could be a static image with a text that says "timeout".

@openstreetmap-trac
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Author: simon[at]zymurgy.org
[Added to the original trac issue at 12.27pm, Saturday, 11th February 2006]

or how about detecting a failed rendering and setting the HTTP expiry time on the result to be just a few minutes, so we don't end up with landsat-only tiles in the cache that is supposed to be landsat and streets?

@openstreetmap-trac
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Author: lars[at]aronsson.se
[Added to the original trac issue at 1.24am, Monday, 13th February 2006]

The random drop-out behaviour was gone for a few hours on Sunday evening, February 12, 2006. This made me think somebody had solved the problem. But right after midnight the same problem is back.

@openstreetmap-trac
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Author: lars[at]aronsson.se
[Added to the original trac issue at 3.32am, Wednesday, 15th February 2006]

See statistics in my two mailing list messages:
http://bat.vr.ucl.ac.uk/pipermail/openstreetmap-dev/2006-February/000724.html
http://bat.vr.ucl.ac.uk/pipermail/openstreetmap-dev/2006-February/000725.html

@openstreetmap-trac
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Author: immanuel.scholz[at]gmx.de
[Added to the original trac issue at 8.43am, Thursday, 16th February 2006]

I showed the site to some friends yesterday.. Because of this they now think OSM is just an couple of weeks old alpha version of some lines of perl or worse.. ;-(

It looks like the problem is worse when there is load on the server (rush hours) but I am not sure about this.

Steve, can you guess where the problem probably is (in which file/directoy/module etc..) to have a start on looking?

@openstreetmap-trac
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Author: mikel_maron[at]yahoo.com
[Added to the original trac issue at 3.25pm, Friday, 17th February 2006]

This was caused by osmlog.rb throwing a Logger::ShiftingError
I don't know what causes that problem but rescueing that error fixes the problem .. http://www.openstreetmap.org/trac/changeset/839

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