GAE实例是否限制为10个并发请求？

Question

I've heard from several sources that Google App Engine Instances have a hard limit of 10 concurrent request. I was wondering if someone could clarify what exactly this means.

Does the scheduler block any requests over the 10, or is this enforced through a limit on concurrent threads?

Specifically, does this limit affect Go instances the same way that it does Python and Java?

EDIT: here's the feature request which will allow App Engine Instance to handle more then 10 concurrent request / threads. Allow configurable limit of concurrent requests per instance. Please star it.

Answer 1

This has been fixed as of Nov 18th 2013.

The maximum number of requests any GAE instance can process is now configured via the max_concurrent_requests setting eg:

runtime: go
api_version: go1
automatic_scaling:
  max_concurrent_requests: 80

handlers:
  - url: /.*
    script: _go_app

The default is 8 and the maximum is 80.

See https://cloud.google.com/appengine/docs/python/config/appref#automatic_scaling for more info.