October 2016
Intermediate to advanced
75 pages
2h 13m
English
Content preview from Effective Multi-Tenant Distributed Systems
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.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.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Chapter 8. Monitoring Performance: Challenges and Solutions
Introduction
System design and tuning aren’t the only aspects of multi-tenant distributed systems that require different treatment than traditional single-node systems or data centers of machines working independently. Monitoring (detection and diagnosis of problems) is also fundamentally different for distributed systems, especially multi-tenant systems for which the nature of the workload can change dramatically over time.
Traditional system administration makes use of a variety of tools for understanding the performance of and debugging problems on a single node, such as the following in Linux:
-
top Displays a regularly updated page of current information about hardware use, both for the node as a whole and per-process, focusing on CPU and memory usage.
-
iotop Similar to
topbut reports on disk I/O.-
iostat Generates a report on CPU statistics and input/output statistics for devices, partitions, and network file systems.
-
ssandip Reports on network information for a node, such as sockets, connections, routing, and devices.
-
sar Regularly collects and reports on a wide variety of system metrics for the node overall.
- The /proc file system
A virtual file system that provides a convenient and structured way to access process data stored in the kernel’s internal data structures.
These tools, along with log files from a machine, are generally used after an operator has identified a particular machine as having slow ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.