[Tilesathome] Two new ROMA...

[Milenko]

> -----Original Message-----
> From: tilesathome-bounces at openstreetmap.org [mailto:tilesathome-
> bounces at openstreetmap.org] On Behalf Of Mathieu Arnold
> Sent: Thursday, December 04, 2008 10:24 AM
> To: 'TilesAtHome'
> Subject: Re: [Tilesathome] Two new ROMA...
> 
> +-le 04.12.2008 10:12:09 -0500, Milenko a dit :
> | OK - the map.fcgi that I have I just downloaded from florians server,
> so
> | that version does need to be updated.
> 
> Yes, that should end up somewhere in the svn :-)
> 
> | Yes I see that.  It's returning results in under a second or two at
> the
> | moment.  Most of the current tiles look empty or pretty sparse
> though.
> | We'll see what happens when missingtiles runs next.
> 
> The thing is that if possible, the clients that were hitting your
> server
> directly would be really better served by the load balancer, so that
> the load
> balancer does not set your server as being down because the concurrency
> limit
> is reached on your end. (You could also do as I did, set the
> concurrency
> around 20 and let the LB do the job.)
> 
> --
> Mathieu Arnold

Could you drop the LB to something more like 8 instead of 10?  Those extra
two requests really slow things down.

Do you have any idea what causes the large groups on requests all at one
time?  I'm seeing a pattern of no new requests for a minute or so and then
4-7 new requests all within a second or two.  Is this by design on the LB?
If so, spreading these requests out would probably make all of the ROMA
servers more efficient.

-Jeremy