Monitoring Distributed Systems

IN THIS COURSE

• 1.  Course Overview
  1m 19s
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• 2.  Nodes and Machines
  2m 15s
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• 3.  Root Cause
  2m 30s
  In this video, you'll learn more about the root cause of an issue and how to identify and deal with it when a problem arises. You'll discover that despite the term root which might have a connotation of singular with respect to the cause of an issue, there can be more than one root cause. For example, defects in hardware or software could be the root cause of a problem. FREE ACCESS
• 4.  Symptoms vs. Causes
  1m 43s
  In this video, you'll learn about symptoms versus causes. This involves asking what's wrong and why. Asking what's wrong equates to identifying the symptoms, and asking why equates to uncovering the root cause. FREE ACCESS
• 5.  Latency
  3m 42s
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• 6.  Traffic
  2m 13s
  In this video, you'll learn more about traffic and the importance of monitoring it or the number of requests flowing across your network. You'll learn that one of the most significant values to look for when monitoring traffic is the peak value, but not just what that value is. You also need to know how often it's hit, and for how long it remains at or around that value. FREE ACCESS
• 7.  Errors
  1m 43s
  In this video, you'll learn more about errors and their importance with respect to the four golden signals of monitoring. An error can describe many different situations including misconfigurations in your overall infrastructure, bugs in your code or broken dependencies between system components and many other things. And any given error may be insufficient in terms of understanding the problem as a whole, but really that's the key when it comes to monitoring errors. FREE ACCESS
• 8.  Saturation
  1m 53s
  In this video, you'll learn more about saturation and its overall importance in terms of the four golden signals. This refers to how close you are to reaching the maximum capacity of your resources. Every resource has a limit, but some are more readily increased than others. For example, it's easier to increase storage capacity by adding a disk to an array. FREE ACCESS
• 9.  Mean Values
  2m 7s
  In this video, you'll learn about potential issues that can arise when a monitoring system is built around mean value metrics or average values. If you're designing a new monitoring system from scratch, it can often be tempting to base your measurements on the mean value of any given metrics such as the average latency for a service, or maybe the average CPU usage for a node. FREE ACCESS
• 10.  Measurements
  2m 25s
  In this video, you'll learn more about the considerations for determining an appropriate measurement resolution for a system. This means finding the balance between how frequently your measures are taken versus the level of detail required to yield useful data. You'll also learn not to over monitor but under monitor as well. You'll learn about maintaining a balance is key to an effective monitoring solution. FREE ACCESS
• 11.  Designing a Monitoring System
  1m 57s
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• 12.  Creating Rules for Monitoring
  2m 49s
  In this video, you'll learn more about determining the appropriate questions to ask when creating rules for your monitoring solution. This can help avoid false positives and waste time and energy chasing down issues that are of little consequence. You'll begin with asking if a rule detects an otherwise undetected condition. Now this sounds simple enough, but as monitoring solutions evolve, it can be easy to create rules that already exist. FREE ACCESS
• 13.  Long Term Monitoring
  2m 34s
  In this video, you'll learn about the importance of making decisions about your approach to monitoring with long term goals in mind. Monitoring in and of itself often has a connotation of keeping track of what is going on right now. However, monitoring any form should not be to simply keep an eye on things because the goals with respect to your system as a whole should be to continually improve it. You'll discover that your approach to monitoring should have the same goals, improving the system. FREE ACCESS
• 14.  Course Summary
  1m 4s
  In this video, you'll summarize what you've learned in the course. You've examined the monitoring of distributed systems, including nodes and machines in a distributed system and the differences between symptoms and causes. You also learned about mean values strategies and how to choose an appropriate resolution for measurements. You also learned guidelines for designing a monitoring system and how to create appropriate rules for monitoring. In this video, you'll summarize what you've learned in the course. FREE ACCESS