February 2018
Beginner
290 pages
7h 28m
English
Content preview from Hybrid Cloud for Architects
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Availability monitoring
This is the simplest kind of monitoring, which marks the object that is being monitored as either up or down. This is generally done using several protocols such as ICMP (ICMP_ECHO) and sometimes even TCP and UDP (or enhanced verification on these).
In most cases, this is done using a poll method, which means the monitoring system sends a probe to the server that is being monitored. If the probe fails a few times, the system is then marked as down. Availability monitoring is agentless and relies on the network stack that is running by default.
Ideally, a poll mechanism contains the following settings:
- Polling interval: This is the interval at which the probes are sent
- Timeout: This is the time since the last successful ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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