May 2019
Intermediate to advanced
442 pages
11h 36m
English
Content preview from Hands-On Infrastructure Monitoring with Prometheus
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Dispatching alert groups to the notification pipeline
Whenever an alerting rule is triggered, Prometheus will send an alert in the form of a JSON payload to the Alertmanager API, and it will keep sending updates at each evaluation interval of that rule or every minute (configurable through the --rules.alert.resend-delay flag), whichever is longer. When alerts are received by Alertmanager, they go through the dispatching step, where they will be grouped using one or more of the alert labels, such as alertname. We're going to discuss more about this in the Alertmanager configuration section, later in this chapter. This allows you to sort alerts into categories, which can reduce the number of notifications that are sent as multiple alerts in ...
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