API down/slow

[stanvass]

We're getting timeouts on the API currently. It works intermittently with lag, but usually times out. Known issue? What can we do about it. Thanks.

[webprofusion-chrisc]

Hi, thanks for raising this. Performing server reboot now. Our API is currently running at 100% uptime but has slowed in response time over the last 24hrs, will investigate - it's probably a caching issue.

[webprofusion-chrisc]

As a follow up - I am seeing a problem on the server with high CPU, it's a combination of a problem with our MongoDB based caching database which sometimes starts using a lot of CPU for no obvious reason (requiring re-creation of the db) and automated server OS updates which also take a while to complete, combined with fairly high general usage of the API.

As mentioned elsewhere there is ongoing work to provide read-only versions of the API that others can host (see #148) and I intend to start using at least one of these clones to start serving API reads by default. Behind the scenes the plan is to use a cloudflare worker to decide if requests should be served by a read-only clone or by the master API (read/write). This raises the overall latency and response time in some cases but has the advantage that the read-only clones are cheap to run and quite fast (~300ms response times). This is still a work in progress but is quite urgent.

[webprofusion-chrisc]

Ok this is mostly resolved but people can start testing out the load balanced API using:

http://api-router.openchargemap.io/

e.g. https://api-router.openchargemap.io/v3/poi

Eventually this will also be the handler for api.openchargemap.io

[stanvass]

Hi, we tried the new URL, but we get back CloudFlare errors.

[webprofusion-chrisc]

@stanvass sorry missed you reply. The api-router service is now in beta (being used by map.openchargemap.io) but will eventually this will just be api.openchargemap.io - this works using cloudflare workers to decide which back-end (primary api and one or more mirrors) to route requests to based on type.

[webprofusion-chrisc]

Also note that Webprofusion Pty Ltd (my company) is now offering hosted & managed APIs commercially - these will have an SLA for avg response time and availability and are available as monthly or annual subscription (from $199 USD monthly, depending on requirements). Most people will still use the free API but some users may require a commercial level of service.