[OSRM-talk] OSRM demoserver update
Daniel Patterson
daniel at mapbox.com
Sat Oct 28 03:54:59 UTC 2017
The swapover has been completed. Please open tickets if you see any
server-move problems crop up.
daniel
On Fri, Oct 27, 2017 at 5:14 PM, Daniel Patterson <daniel at mapbox.com> wrote:
> Hi everyone,
>
> As most of you have probably noticed, the OSRM demoserver has been
> pretty unreliable over the last few months.
>
> This weekend, I'm going to migrate it to live alongside our production
> infrastructure here at Mapbox. This means it'll get redundancy and
> monitoring!
>
> I'm hoping the transition is mostly seamless, but there will be a few
> changes you may notice:
>
> 1. We'll be switching from `osrm.routed`, to `osrm-routed.js` (
> https://github.com/Project-OSRM/osrm-backend/pull/4604). I've tried my
> best to make it fully compatible, but, well, there are always bugs.
> 2. The demoserver will only run stable releases, it will no longer run
> from master.
> 3. The dataset is a slightly modified car.lua, *plus* Mapbox's
> freeflow traffic data over the top - this should give more accurate ETAs in
> areas where Mapbox has traffic coverage than plain car.lua.
> 4. Hints are disabled on the new setup - the hint= parameter is
> accepted but ignored. This is because we're cycling the dataset every few
> hours behind the scenes, hints get invalidated quickly.
> 5. The demoserver will have a service-wide rate limit of 5000
> req/minute. Looking at past logs, it stays below this about 98% of the
> time, but be prepared for HTTP 429 responses, and be aware that heavy usage
> may cause rate limiting for everyone else if you flood the server.
> 6. Some error messages will change - this is mostly the result of the
> switch from osrm-routed to osrm-routed.js and using a different URL parsing
> library.
>
> I plan on doing the switchover starting now - there may be some DNS
> outage required while I do the reconfiguration. Once the swapover is done,
> the hope is that we'll have a much more reliable service that costs us less
> money to operate.
>
> If you notice any weirdness that seem the result of the switchover,
> please open tickets in the osrm-backend project.
>
> daniel
>
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