The document discusses observability in DevOps and modern distributed applications. It covers topics like DevOps, the three ways of DevOps, uptime monitoring, latency, metrics, logging, tracing, and the four golden signals. SolarWinds is introduced as a company that provides tools to help with observability, monitoring, logging and tracing across distributed systems.

1. © 2017 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.
Observability in DevOps with Modern Distributed Applications
Dave Mangot
Head of Site Reliability Engineering,
SolarWinds Cloud
@davemangot

2. © 2017 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.
© 2017 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.
About Me
• 20+ years in systems engineering, have led DevOps and operational maturity
transformations at multiple companies
• Big companies: Cable & Wireless, Salesforce, SolarWinds
• Small Companies: Terracotta, Tagged, Librato
• International DevOps contributor
@davemangot
5/9/16 2

3. © 2017 SolarWinds Worldwide, LLC. All rights reserved.
SolarWinds company overview: Quick facts
• Founded in 1999, over 18 years in the industry
• Over 250,000 customers in 170 countries, including 425 of the Fortune
500®
• Global headquarters in Austin, Texas, with 2,300 employees worldwide
• SolarWinds was taken private by private equity investment firms
Thoma Bravo and Silver Lake Partners in February 2016
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4. © 2017 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED.
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but we wouldn’t be upset if you did :)
You do not need to purchase these
solutions from SolarWinds!
Disclaimer:

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DevOps
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DevOps
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DevOps is a collaboration between
Development, Operations and other teams
with the recognition that we are tasked with
achieving common business goals.

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The 3 Ways of DevOps
16http://itrevolution.com/the-three-ways-principles-underpinning-devops/

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The 3 Ways of DevOps
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Feedback
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2nd Way of DevOps
The Second Way is about creating the right to left feedback loops. The goal of almost any process
improvement initiative is to shorten and amplify feedback loops so necessary corrections can be continually
made.
The outcomes of the Second Way include understanding and responding to all customers, internal and
external, shortening and amplifying all feedback loops, and embedding knowledge where we need it.
19http://itrevolution.com/the-three-ways-principles-underpinning-devops/

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If it’s not monitored, it doesn’t exist

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Uptime Monitoring
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Uptime Monitoring
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https://blog.gigaspaces.com/amazon-found-every-100ms-of-latency-cost-them-1-in-sales/
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Latency matters. Amazon found every
100ms of latency cost them 1% in sales.
Google found an extra .5 seconds in
search page generation time dropped
traffic by 20%.

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You can’t improve what you don’t measure

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Observability
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https://peter.bourgon.org/blog/2017/02/21/metrics-tracing-and-logging.html

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Logging
(events)
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Logging
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tail -f /var/log/messages

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Application Development/Troubleshooting
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Setup
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Logging
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• Application Development
• Troubleshooting
• Deployments
• Search Alerts

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Shipping
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Search Alerts
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Papertrail
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Metrics
(aggregatable)
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Infrastructure Metrics
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Host Metrics
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root 23706 1 0 Nov18 ? 00:00:00 /bin/sh -c start-stop-daemon --start --quiet --pidfile /var/run/appoptics/appoptics-snapteld.pid —chuid
appoptics --exec /opt/appoptics/sbin/snapteld --oknodo --config /opt/appoptics/etc/config.yaml --pidfile /var/run/appoptics/appoptics-snapteld.pid
Host Metrics

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Host Metrics
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Application Metrics
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Kafka
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Custom Metrics
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Metric Submission
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api = librato.connect('email', 'token')
q = api.new_queue()
q.add('temperature', 22.1, tags={'location': 'downstairs'})
q.add('temperature', 23.1, tags={'location': 'upstairs'})
q.submit()

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Custom Metrics
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The 4 Golden Signals
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● Latency
● Traffic
● Errors
● Saturation

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The 4 Golden Signals
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Latency
The time it takes to service a request.

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The 4 Golden Signals
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Traffic
How much demand is being placed
on your system.

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The 4 Golden Signals
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Errors
The rate of requests that fail either
explicitly, implicitly, or by policy.

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The 4 Golden Signals
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Saturation
How “full” your service is.

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Tracing
(request scoped)
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Distributed Tracing
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Web
App
Database

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Distributed Tracing
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Web
App
Database
X-Trace: 123654
X-Trace: 123654
X-Trace: 123654

63. © 2017 SOLARWINDS WORLDWIDE, LLC. ALL RIGHTS RESERVED. 63
WHAT IS DISTRIBUTED TRACING?
HELP!No, help
ME!

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export APPOPTICS_SERVICE_KEY="795fXXXXXXXe5f5b17c7:serviceA"
-javaagent:/usr/local/lib/appoptics-agent.jar
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Distributed Tracing
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Distributed Tracing
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Distributed Tracing
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Thanks!
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@davemangot