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Miek GiebenandGitHub 0c6ef34234 1.6.4 release notes (#166)
* Generate html for plugins

Signed-off-by: Miek Gieben <miek@miek.nl>

* Release 1.6.4

Signed-off-by: Miek Gieben <miek@miek.nl>
2019-09-27 15:18:57 +01:00

1.1 KiB

+++ title = "cancel" description = "cancel cancels a request's context after 5001 milliseconds." weight = 8 tags = [ "plugin", "cancel" ] categories = [ "plugin" ] date = "2019-09-27T10:37:57.663365" +++

Description

The cancel plugin creates a canceling context for each request. It adds a timeout that gets triggered after 5001 milliseconds.

The 5001 number was chosen because the default timeout for DNS clients is 5 seconds, after that they give up.

A plugin interested in the cancellation status should call plugin.Done() on the context. If the context was canceled due to a timeout the plugin should not write anything back to the client and return a value indicating CoreDNS should not either; a zero return value should suffice for that.

cancel [TIMEOUT]
  • TIMEOUT allows setting a custom timeout. The default timeout is 5001 milliseconds (5001 ms)

Examples

example.org {
    cancel
    whoami
}

Or with a custom timeout:

example.org {
    cancel 1s
    whoami
}

Also See

The Go documentation for the context package.