Versions Compared

Old Version 10

changes.mady.by.user Former user

Saved on

compared with

New Version 11

changes.mady.by.user Former user

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.
Comment: DOCUMENTATION-7587
Excerpt

Throttling allows you to limit the number of successful hits to an API during a given period of time, typically in cases such as the following:

  • To protect your APIs from common types of security attacks such as certain types of denial of service (DOS) attacks
  • To regulate traffic according to infrastructure availability
  • To make an API, application or a resource available to a consumer at different levels of service, usually for monetization purpose

...

  • Bronze: 1000 requests per minute
  • Silver: 2000 requests per minute
  • Gold: 5000 requests per minute

  • Unlimited: Allows unlimited access (you can disable the Unlimited tier by editing the <EnableUnlimitedTier> element in <ThrottlingConfigurations> node of the <APIM_HOME>/repository/conf/api-manager.xml file)

    Note

    In API Manager 2.10.0 onwards, Advanced Throttling is enabled by default with following configuration in <API-M_HOME>/repository/conf/api-manager.xml.

    Code Block
    <ThrottlingConfigurations>
        <EnableAdvanceThrottling>true</EnableAdvanceThrottling>
     ......
<ThrottlingConfigurations>

    If you are disabling Advanced Throttling in any case by setting the value of <EnableAdvanceThrottling> false, Advanced Throttling is disabled and old Throttling mechanism is enabled thereafter. In such a scenario, if you want to disable the Unlimited Throttling tier of old Throttling configurations, you need to disable it under <TierManagement> by setting <EnableUnlimitedTier> to false.

    Code Block
    <TierManagement>        
        <EnableUnlimitedTier>true</EnableUnlimitedTier>
    </TierManagement>

It is also possible to specify a bandwidth per unit time instead of a number of requests. This can be done by an API Manager administrator. For information on editing the values of the existing tiers, defining new tiers and specifying a bandwidth per unit time, see Adding a new subscription-level throttling tier. 

Note

Note that when you edit an API with active subscribers, certain things like tier changes do not get automatically reflected to the subscribers. For such changes to take effect, the subscribers should resubscribe to the API and regenerate the access token.

Rate limiting (burst control)

...