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A Zabbix Believer’s Story……. Jayesh Thakrar Chief Architect, Mikoomi making enterprise monitoring virtual. Topics 1. Introduction 2. Comparison : Nagios v/s Zabbix 3. Zabbix : Architecture Overview 4. Zabbix : Browser based GUI
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A Zabbix Believer’s Story…… Jayesh Thakrar Chief Architect, Mikoomimaking enterprise monitoring virtual
Topics 1. Introduction 2. Comparison : Nagios v/s Zabbix 3. Zabbix : Architecture Overview 4. Zabbix : Browser based GUI 5. Mikoomi : Open-source Value-Add Agents & Consulting Services
How It All Began….. • Needed to monitor IT systems - 24x7 • Are applications, web servers, databases and other services up? • Needed insight into performance • Visibility into current and historical performance and load • Quantifying, charting and trending of load, performance and utilization • Tool for HelpDesk (Level-1 Support)
Choices: Nagios & Derivaties www.groundworkopensource.com www.shinken-monitoring.org
Choices: Other Open Source http://www.slac.stanford.edu/xorg/nmtf/nmtf-tools.html#contents
Nagios: Brief Overview • Pros • Popular and well-known • Basis for many other open source systems • Template-based and object oriented inheritance • Based out of Minneapolis, US • Boost (?) by RedHat announcementhttp://www.nagios.org/news/77-news-announcements/230-nagios-is-redhats-standard-alerting-system
Nagios: Brief Overview • Cons • Requires significant effort for setup • Setup, admin and configuration = text file based • Monitoring data stored in single flat file (or via pipe into database) • High I/O on data file from monitoring and UI • Configuration change require reload • “Primitive” graphing and monitoring UI
Zabbix : Brief Overview • Pros • Agent and agent-less monitoring • SNMP support • Template based • Scalable, distributed architecture • Built-in UNIX, log-file, SNMP and URL monitoring • Easy to extend with plug-ins or agents • Active development • Database based monitoring data storage • Thresholds and alerting separate from monitoring
Zabbix : Brief Overview • Pros • Multiple items or attributes per monitored entity • Different items of an entity can be monitored by different mechanisms • Can define alerts based on comparison of current item value with historical values, averages, etc. • Can build dependencies between monitored entities • Pre-canned (template-based) graphs as well as ad-hoc graphs on any monitored item • User-defined maps, screens and slide-shows
Convinced that N to Z is more than Just a 90° rotation ?? Nagios to Zabbix N Z
Zabbix Distributed Architecture External monitoring data collectors Zabbix OS Agents Zabbix Node (Central) Web Server Zabbix Server Zabbix Distributed Nodes Zabbix Database External Scripts Proxy Servers or Proxy Agents
Zabbix Server Processes watchdog pinger Poller Processes Poller Processes housekeeper db_config_syncer Poller Processes Poller Processes alerter db_data_syncer Poller Processes Poller Processes poller nodewatcher Poller Processes Poller Processes httppoller timer Poller Processes Poller Processes discoverer escalator Poller Processes Poller Processes Inside the Zabbix Server
Zabbix OS Agent • OS-level agents for most popular platforms • Linux • AIX, HP-UX, Solaris • MacOS • Windows • OS agents can run external programs to complement / enhance monitoring
Zabbix Monitoring Approach • Templates • Define new or modify existing templates • Contains monitoring data elements called items • Contains thresholds (triggers) and actions on item • Collection of pre-defined graphs using items • Hosts • Hosts = monitored entitye.g. hosts, applications, databases, etc. • Define new hosts and link to template • Customize triggers and actions if necessary • Data Collection – by Server, Agent or Proxy
About mikoomi • Mikoomi, the company - • Develops, distributes and supports open-source monitoring solutions • Provides custom development and consulting around monitoring and high availability • Strong believer in open-source – as a consumer and as a producer
mikoomi Products & Services MikoomiMonitoringAgents Services& Support Mikoomi value-add Zabbix Monitoring Framework
mikoomi Products - Appliance • Mikoomi Monitoring Appliance • Appliance = virtual machine template • Contains Zabbix + Ubuntu + best practices • Zabbix = Best open source monitoring • Ubuntu = One of the best Linux variants • Quick, easy & flexible to deploy • Up and running in less than 60 minutes
mikoomi Products – Agents • Mikoomi Monitoring Agents • Add-on monitoring capabilities for databases, application servers, software components, custom apps • Embed deep product-specific expertise and monitoring best practices • Covers key health and performance data • Open-source makes them extensible • Minimally “intrusive” on monitored entity • Java JVM and DB2 released • WebSphere, Tomcat, SQL Server, Oracle, ActiveMQ and others planned for release
mikoomi Services • Services • Deployment, implementation and training • Consulting & custom development • Develop custom monitoring for software vendors to help operations and monitoring of their products
mikoomi: Sizing and Capacity • Single node (appliance) with 2 CPUs + 2 GB memory supports monitoring a “sizable” IT environment - • 10 – 20 servers + • 20 – 40 databases or instances + • 20 – 40 application instances • Scales horizontally and vertically