2019-09-10 13:32:51 -04:00
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[role="xpack"]
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2017-03-28 17:23:01 -04:00
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[[trigger-schedule]]
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=== Schedule Trigger
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Schedule <<trigger, triggers>> define when the watch execution should start based
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on date and time. All times are specified in UTC time.
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{watcher} uses the system clock to determine the current time. To ensure schedules
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are triggered when expected, you should synchronize the clocks of all nodes in the
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cluster using a time service such as http://www.ntp.org/[NTP].
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Keep in mind that the throttle period can affect when a watch is actually executed.
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The default throttle period is five seconds (5000 ms). If you configure a schedule
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that's more frequent than the throttle period, the throttle period overrides the
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schedule. For example, if you set the throttle period to one minute (60000 ms)
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and set the schedule to every 10 seconds, the watch is executed no more than
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once per minute. For more information about throttling, see
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<<actions-ack-throttle, Acknowledgement and Throttling>>.
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{watcher} provides several types of schedule triggers:
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* <<schedule-hourly, `hourly`>>
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* <<schedule-daily, `daily`>>
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* <<schedule-weekly, `weekly`>>
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* <<schedule-monthly, `monthly`>>
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* <<schedule-yearly, `yearly`>>
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* <<schedule-cron, `cron`>>
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* <<schedule-interval, `interval`>>
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include::schedule/hourly.asciidoc[]
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include::schedule/daily.asciidoc[]
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include::schedule/weekly.asciidoc[]
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include::schedule/monthly.asciidoc[]
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include::schedule/yearly.asciidoc[]
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include::schedule/cron.asciidoc[]
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include::schedule/interval.asciidoc[]
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