Google App Engine任务队列：googleapi：错误500：后端错误

Question

I've defined a pull queue for my app engine application and want to fill it from outside via the REST api. Unfortunately it doesn't work, I always get an error 500: backend error. Even if I try to fill it with the api explorer from the documentation.

It responses:

500 Internal Server Error

- Show headers -

{
 "error": {
  "errors": [
   {
    "domain": "global",
    "reason": "backendError",
    "message": "Backend Error"
   }
  ],
  "code": 500,
  "message": "Backend Error"
 }
}

Any idea how to solve it?

Answer 1

Can you paste your code that is doing the leasing? One common mistake is forgetting to include the s~ in your App Engine Project. For example, if your application ID is my-awesome-app, then you are calling

tq.get(project='my-awesome-app', taskqueue=PULL_QUEUE_NAME...

when you should be calling

tq.get(project='s~my-awesome-app', taskqueue=PULL_QUEUE_NAME...

(thanks to bossylobster for this original answer: pull queues authorization from compute)