Cloud & Networking
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You're reading from  Mastering Prometheus

Product typeBook
Published inApr 2024
PublisherPackt
ISBN-139781805125662
Edition1st Edition
Concepts
DevOps
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Author (1)
William Hegedus
William Hegedus
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William Hegedus

William Hegedus has worked in tech for over a decade in a variety of roles, culminating in site reliability engineering. He developed a keen interest in Prometheus and observability technologies during his time managing a 24/7 NOC environment and eventually became the first SRE at Linode, one of the foremost independent cloud providers. Linode was acquired by Akamai Technologies in 2022, and now Will manages a team of SREs focused on building the internal observability platform for Akamai's Connected Cloud. His team is responsible for a global fleet of Prometheus servers spanning over two dozen data centers and ingesting millions of data points every second, in addition to operating a suite of other observability tools. Will is an open source advocate and contributor who has contributed code to Prometheus, Thanos, and many other CNCF projects related to Kubernetes and observability. He lives in central Virginia with his wonderful wife, four kids, three cats, two dogs, and a bearded dragon.
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Highly available (HA) alerting

Unlike Prometheus itself, Alertmanager does have built-in high-availability capabilities and is natively able to run as a cluster. It provides clustering capabilities using a gossip protocol in which information is shared amongst the members of the cluster by specifying peers when an instance of Alertmanager is started up using the repeatable --cluster.peer flag. Alternatively, if you don’t want to enable clustering, you can set the --cluster.listen-address flag to an empty string to disable clustering altogether (not recommended for production deployments). There are a variety of flags for Alertmanager under --cluster.*, but these should not need to be modified for most use cases apart from that peer flag.

The gossip between cluster members only applies to certain information, such as silences and whether or not a notification has already been sent to an alert group. Consequently, gossip between Alertmanagers in a cluster is crucial to avoid...

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Mastering Prometheus
Published in: Apr 2024Publisher: PacktISBN-13: 9781805125662
© 2024 Packt Publishing Limited All Rights Reserved

Author (1)

author image
William Hegedus

William Hegedus has worked in tech for over a decade in a variety of roles, culminating in site reliability engineering. He developed a keen interest in Prometheus and observability technologies during his time managing a 24/7 NOC environment and eventually became the first SRE at Linode, one of the foremost independent cloud providers. Linode was acquired by Akamai Technologies in 2022, and now Will manages a team of SREs focused on building the internal observability platform for Akamai's Connected Cloud. His team is responsible for a global fleet of Prometheus servers spanning over two dozen data centers and ingesting millions of data points every second, in addition to operating a suite of other observability tools. Will is an open source advocate and contributor who has contributed code to Prometheus, Thanos, and many other CNCF projects related to Kubernetes and observability. He lives in central Virginia with his wonderful wife, four kids, three cats, two dogs, and a bearded dragon.
Read more about William Hegedus

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