AppEngine中的任务队列的默认值是什么? [英] What are the defaults for a task queue in AppEngine?

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问题描述

假设我在 queue.yaml 文件中创建一个新队列为:

  queue:
- name:my_queue

所有参数指定?



以下是我可以从 docs

 队列:
- name: my_queue
mode:push
bucket_size:5
target:<与入队任务相同的版本>
汇率:???
max_concurrent_requests:???
retry_parameters:
task_retry_limit:???
task_age_limit:???
min_backoff_seconds:???
max_backoff_seconds:???
max_doublings:???

您能帮我填补空白吗?

$ b $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $'名称:my_queue
模式:push
bucket_size:5
target:<与入队任务相同的版本>
rate:5
max_concurrent_requests:∞
retry_parameters:
task_retry_limit:∞
task_age_limit:∞
min_backoff_seconds:0.1
max_backoff_seconds:3600.0
max_doublings:16

费率记录在 here。



我从taskqueue_service_pb .py,您可以在python SDK中找到它,其中有一个名为 TaskQueueRetryParameters 的类,如下所示:

  class TaskQueueRetryParameters(ProtocolBuffer.ProtocolMessage):
has_retry_limit_ = 0
retry_limit_ = 0
has_age_limit_sec_ = 0
age_limit_sec_ = 0
has_min_backoff_sec_ = 0
min_backoff_sec_ = 0.1
has_max_backoff_sec_ = 0
max_backoff_sec_ = 3600.0
has_max_doublings_ = 0
max_doublings_ = 16

task_retry_limit task_age_limit 设置为0 - 换句话说,没有限制。同样的 max_concurrent_requests ,它在另一个名为 TaskQueueUpdateQueueRequest 的类中定义。


Suppose I create a new queue in my queue.yaml file as:

queue:
- name: my_queue

What would be the equivalent queue with all parameters specified?

Here's what I could gather from the docs so far.

queue:
- name: my_queue
  mode: push
  bucket_size: 5
  target: <the same version that enqueued the task>
  rate: ???
  max_concurrent_requests: ???
  retry_parameters:
    task_retry_limit: ???
    task_age_limit: ???
    min_backoff_seconds: ???
    max_backoff_seconds: ???
    max_doublings: ???

Can you help me fill in the gaps?

解决方案

My best stab at this is

queue:
- name: my_queue
  mode: push
  bucket_size: 5
  target: <the same version that enqueued the task>
  rate: 5
  max_concurrent_requests: ∞
  retry_parameters:
    task_retry_limit: ∞
    task_age_limit: ∞
    min_backoff_seconds: 0.1
    max_backoff_seconds: 3600.0
    max_doublings: 16

The rate is documented here.

The rest of the numbers I got from taskqueue_service_pb.py, which you will find in the python SDK, where there is a class called TaskQueueRetryParameters, which looks like this:

class TaskQueueRetryParameters(ProtocolBuffer.ProtocolMessage):
  has_retry_limit_ = 0
  retry_limit_ = 0
  has_age_limit_sec_ = 0
  age_limit_sec_ = 0
  has_min_backoff_sec_ = 0
  min_backoff_sec_ = 0.1
  has_max_backoff_sec_ = 0
  max_backoff_sec_ = 3600.0
  has_max_doublings_ = 0
  max_doublings_ = 16

task_retry_limit and task_age_limit are set to 0 - in other words, there is no limit. Same for max_concurrent_requests, which is defined in another class called TaskQueueUpdateQueueRequest.

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