efbe29ff75
This commit better documents recommended deployment architecture for Uptime.
26 lines
2.1 KiB
Plaintext
26 lines
2.1 KiB
Plaintext
[role="xpack"]
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[[uptime-deployment-arch]]
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== Deployment Architecture
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There are multiple ways to deploy Uptime and Heartbeat.
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Use the information in this section to determine the best deployment for you.
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A guiding principle is that an outage that takes down the service being monitored should not also take down Heartbeat.
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You want Heartbeat to be functioning even when your service is not, so the guidelines here help you maximise this possibility.
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Heartbeat is generally run as a centralized service within a data center.
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While it is possible to run it as a separate "sidecar" process paired with each process/container, we recommend against it.
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Running Heartbeat centrally ensures you will still be able to see monitoring data in the event of an overloaded, disconnected, or otherwise malfunctioning server.
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For further redundancy, you may want to deploy multiple Heartbeats across geographic and/or network boundaries to provide more data.
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Specify Heartbeat's observer {heartbeat-ref}/configuration-observer-options.html[geo options] to do so. Some examples might be:
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* **A site served from a content delivery network (CDN) with points of presence (POPs) around the globe:**
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In this case you may want to have multiple Heartbeat instances at different data centers around the world checking to see if your site is reachable via local CDN POPs.
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* **A service within a single data center that is accessed across multiple VPNs:**
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Set up one Heartbeat instance within the VPN the service operates from, and another within an additional VPN that users access the service from.
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Having both instances will help pinpoint network errors in the event of an outage.
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* **A single service running primarily in a US east coast data center, with a hot failover located in a US west coast data center:**
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In each data center, run a Heartbeat instance that checks both the local copy of the service and its counterpart across the country.
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Set up two monitors in each region, one for the local service and one for the remote service.
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In the event of a data center failure it will be immediately obvious if the service had a connectivity issue to the outside world or if the failure was only internal.
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