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News June 2023
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Back to newsletter 271 contents
A few month's ago I pointed out Yuri Shkuro's article on the six pillars of observability, and I've since had questions about those pillars. So here's a helpful guide:
- Traces:
- - The full route of a request, consisting of spans each of which measures the time taken for some sub-activity in fulfilling the request. Includes context data, and can cross multiple services
- - Great for monitoring, generating alerts, debugging, root cause analysis, system resource analysis
- Errors/Exceptions:
- - A failure including information and stack trace
- - Great for alerting, debugging, root cause analysis and anomaly detection
- Metrics:
- - Numerical measurements with attributes
- - Great for monitoring and generating alerts, but not as good for troubleshooting & investigations
- Profiles:
- - Collections of stack traces with some weight associated with each stack trace
- - Great for root cause analysis and system resource analysis (including performance)
- Logs:
- - Strings, each saying what happened at a point in time
- - Great for debugging and root cause analysis
- Events:
- - Lifecycle changes including those external to the observed system, that cause some changes in that system
- - Great for root cause analysis
Now on to all the usual newsletter list of links, tips, tools, news and articles, and as usual I've extracted all the tips into this month's tips page
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Jack Shirazi
Back to newsletter 271 contents
Last Updated: 2025-01-27
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