book

Practical Monitoring

by Mike Julian

October 2017

Beginner to intermediate

170 pages

3h 58m

English

O'Reilly Media, Inc.

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Who Should Read This BookWhy I Wrote This BookA Word on Monitoring TodayNavigating This BookOnline ResourcesConventions Used in This BookUsing Code ExamplesO’Reilly SafariHow to Contact UsAcknowledgments
Anti-Pattern #1: Tool ObsessionMonitoring Is Multiple Complex Problems Under One NameAvoid Cargo-Culting ToolsSometimes, You Really Do Have to Build ItThe Single Pane of Glass Is a MythAnti-Pattern #2: Monitoring-as-a-JobAnti-Pattern #3: Checkbox MonitoringWhat Does “Working” Actually Mean? Monitor That.OS Metrics Aren’t Very Useful—for AlertingCollect Your Metrics More OftenAnti-Pattern #4: Using Monitoring as a CrutchAnti-Pattern #5: Manual ConfigurationWrap-Up
Pattern #1: Composable MonitoringThe Components of a Monitoring ServicePattern #2: Monitor from the User PerspectivePattern #3: Buy, Not BuildIt’s CheaperYou’re (Probably) Not an Expert at Architecting These ToolsSaaS Allows You to Focus on the Company’s ProductNo, Really, SaaS Is Actually BetterPattern #4: Continual ImprovementWrap-Up
What Makes a Good Alert?Stop Using Email for AlertsWrite RunbooksArbitrary Static Thresholds Aren’t the Only WayDelete and Tune AlertsUse Maintenance PeriodsAttempt Automated Self-Healing FirstOn-CallFixing False AlarmsCutting Down on Needless FirefightingBuilding a Better On-Call RotationIncident ManagementPostmortemsWrap-Up
Before Statistics in Systems OperationsMath to the Rescue!Statistics Isn’t MagicMean and AverageMedianSeasonalityQuantilesStandard DeviationWrap-Up
Business KPIsTwo Real-World ExamplesYelpRedditTying Business KPIs to Technical MetricsMy App Doesn’t Have Those Metrics!Finding Your Company’s Business KPIsWrap-Up
The Cost of a Slow AppTwo Approaches to Frontend MonitoringDocument Object Model (DOM)Frontend Performance MetricsOK, That’s Great, but How Do I Use This?LoggingSynthetic MonitoringWrap-Up
Instrumenting Your Apps with MetricsHow It Works Under the HoodMonitoring Build and Release PipelinesHealth Endpoint PatternApplication LoggingWait a Minute…Should I Have a Metric or a Log Entry?What Should I Be Logging?Write to Disk or Write to Network?Serverless / Function-as-a-ServiceMonitoring Microservice ArchitecturesWrap-Up

Standard OS MetricsCPUMemoryNetworkDiskLoadSSL CertificatesSNMPWeb ServersDatabase ServersLoad BalancersMessage QueuesCachingDNSNTPMiscellaneous Corporate InfrastructureDHCPSMTPMonitoring Scheduled JobsLoggingCollectionStorageAnalysisWrap-Up
The Pains of SNMPWhat Is SNMP?How Does It Work?A Word on SecurityHow Do I Use SNMP?Interface MetricsInterface and LoggingRecapConfiguration TrackingVoice and VideoRoutingSpanning Tree Protocol (STP)ChassisCPU and MemoryHardwareFlow MonitoringCapacity PlanningWorking BackwardForecastingWrap-up
Monitoring and ComplianceUser, Command, and Filesystem AuditingSetting Up auditdauditd and Remote LogsHost Intrusion Detection System (HIDS)rkhunterNetwork Intrusion Detection System (NIDS)Wrap-Up
Business KPIsFrontend MonitoringApplication and Server MonitoringSecurity MonitoringAlertingWrap-Up
Demo AppMetadataEscalation ProcedureExternal DependenciesInternal DependenciesTech StackMetrics and LogsAlerts

Content preview from Practical Monitoring

Part I. Monitoring Principles

Part I of Practical Monitoring will explore the guiding principles of monitoring. We’ll be discussing anti-patterns, design patterns, alerting, and more. Part I will set the foundation for your monitoring journey.

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Publisher Resources

ISBN: 9781491957349Errata Page