[Tilesathome] Long Request Take Time?

Ed Loach ed at loach.me.uk
Wed Sep 10 21:16:43 BST 2008


Ian wrote:

> I'm seeing a very long request take time for my clients. 
> They almost always get a "no requests in queue for you" from 
> the server.
> 
> What's going on?

It's probably to do with the changes made to stop the upload queue
filling as per spaetz's post on Monday (which included):

--- Start quote ---
Priority 1 requests are handed out if the uploa queue < 1500
Priority 2 requests are handed out if the uploa queue < 1200
Priority 3 requests are handed out if the uploa queue < 1000
Priority 4 requests are handed out if the uploa queue < 700

This should make sure that the server always has something to crunch
and it should make sure that no high priority requests are get stuck
in the upload-waiting loop.
--- End quote ---

Looking at the current request queue, almost all the requests are
priority 4, so probably aren't being issued very regularly if the
upload queue is at about the 700 level.

I think this is an improvement; it means we seem to have clients
ready to start servicing the level 1 and 2 requests almost as soon
as they come in (when all is running smoothly that is), and the
level 4 requests are getting dealt with without the upload queue
filling and causing everything to choke up.

Ed






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