[OSM-talk] Bandwidth limit/IP blocking - Error 303 on the OSM API?

Grant Slater openstreetmap at firefishy.com
Thu Jun 2 10:49:51 BST 2011


On 2 June 2011 03:42, David Murn <davey at incanberra.com.au> wrote:
> On Wed, 2011-06-01 at 22:18 +0100, Tom Hughes wrote:
>
>> Yes, you got blocked on 16th May by the looks of it. I don't think I did
>> it so it was probably one of my colleagues.
>
> Is there not some sort of audit trail or changelog for when users get
> blocked?
>

Yes, there is an internal sysadmin audit trail.

> I think it would be useful if one could find out if theyre blocked or if
> there is some other server problem, without having to ask on the mailing
> list.
>

API...
"HTTP Error 403 - Forbidden" connection have been blocked. This is
used on mass downloaders who degrade the API for mappers. [*]
"HTTP Error 509 - Bandwidth Limit Exceeded" requested excessive
amounts of data in a short period. Automatically removed after dropped
below threshold.

API + WWW served an average of 2529965 requests per day for May 2011.

Tiles downloads are auto-magically slowed down after reaching a high
threshold. Number of IP addresses currently being slowed down:
http://munin.openstreetmap.org/openstreetmap/konqi.openstreetmap/squid_delay_pools.html
Tile downloads are normally in excess of 1000 per second.

>> > Suggestions, work-arounds?
>>
>> Use the full history dump, as somebody has already suggested.
>
> Also, you can use the daily/minutely diffs if you want to keep up with
> 'real-time' map edits.
>

Yes. The replication diffs contain all the changes applied for the period.

*: There is also an ancient release of JOSM blocked which flips
lat/lon coordinates.

Regards
 Grant



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