[OSM-dev] Tirex - Rendering jobs stucked in the queue

[Radek Bartoň]

> You don't have renderd running in parallel to tirex, right?

No, there is just mod_tile installed.

> Are you sure it isn't a tile which is hitting the timeout? There was a
> bug some time ago where the Agg code can get stuck in an infinite loop
> rendering some tiles but it only occurs in very rare circumstances.
> 
> Have you tried starting up a fresh instance and just feeding in the tile
> co-ordinates of that one stuck request?

I tired to stop apache2, tirex-master, tirex-backend-manager services, then 
delete all meta tiles and then start the services in order: tirex-backend-
manager, tirex-master, apache2 (I suppose this is the correct one) and then I 
requested a single tile from a high level (14-17) sevral times with different 
tiles.

From what I've seen while debugging it it doesn't matter on the tile 
requested. It stucks anytime and even there are some "success=1" lines in the 
jobs.log, the metatiles are all empty.

Isn't it possible that all this is caused by some problem with mod_deflate 
presence since it is the only difference between my working server and this 
new one, I'm aware of, except of hardware?

-- 
Ing. Radek Bartoň

Faculty of Information Technology
Department of Computer Graphics and Multimedia
Brno University of Technology

E-mail: blackhex at post.cz
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