5016627f04
Spec repos do not have code to unit test. The gate job definition for the py27 and py35 jobs skip if there doc only changes, which is all we will ever have in the specs repo. Therefore the one "test" we had will never be run. We were using this unit test as a check for formatting issues with the rst files. This was done before doc8 was available. Now that we can use doc8, we should just switch to running that as part of the pep8 jobs. Also fixes all the errors caught by doc8 that were not caught by our unit test check. Change-Id: Ida20764edde3a07c89703d82b41958c96548b239
1.9 KiB
Limits
All accounts, by default, have a preconfigured set of thresholds (or limits) to manage capacity and prevent abuse of the system. The system recognizes two kinds of limits: rate limits and absolute limits. Rate limits are thresholds that are reset after a certain amount of time passes. Absolute limits are fixed.
Rate limits
Rate limits are specified in terms of both a human-readable wild-card URI and a machine-processable regular expression. The regular expression boundary matcher '^' takes effect after the root URI path. For example, the regular expression ^/v1.0/instances would match the bolded portion of the following URI: https://dfw.blockstorage.api.openstackcloud.com\ /v1.0/instances.
The following table specifies the default rate limits for all API operations for all GET, POST, PUT, and DELETE calls for volumes:
Table 2.2. Default rate limits
Verb
URI
RegEx
Default
GET changes-since
*/instances/*
^/v\d+\.\d+/\d+/instances.*
3/minute
POST
*/instances/*
^/v\d+\.\d+/\d+/instances.*
10/minute
POST instances
*/instances/*
^/v\d+\.\d+/\d+/instances.*
50/day
PUT
*/instances/*
^/v\d+\.\d+/\d+/instances.*
10/minute
DELETE
*/instances/*
^/v\d+\.\d+/\d+/instances.*
100/minute
Rate limits are applied in order relative to the verb, going from least to most specific. For example, although the threshold for POST to /v1.0/* is 10 per minute, one cannot POST to /v1.0/* more than 50 times within a single day.
If you exceed the thresholds established for your account, a 413
(Rate Control) HTTP response will be returned with a
Retry-After header to notify the client when it can attempt
to try again.
Absolute limits
The following table shows the absolute limits:
Table 2.3. Absolute limits
Name
Description
Limit
Block Storage
Maximum amount of block storage
1 TB