How to be a lion tamer
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The document provides a detailed guide on using Nagios, an open-source IT monitoring tool, to manage IBM WebSphere and other IT infrastructures. It outlines features, plugins, and setup instructions, emphasizing performance monitoring and alerting capabilities. Additional resources and references are included for further exploration of Nagios and related tools.
How to be a lion tamer
- 1. How to be a lion tamer (or keeping WebSphere under control with free tools) Sharon Bellamy James & Wannes Rams
- 2. Sharon Bellamy James • IBM WebSphere since 1999 & Connections since 2 / 2008 • Many years experience with migrations, installations, administration, integration, customization & DOCUMENTATION • Tiny bit of a Star wars & Disney fan • Charity fundraising Cosplayer/Costumer • Part of the team that brings you ICON UK 2
- 3. Wannes Rams 3 • Domino since 2000, Sametime since version 6.5.1 Connections since 2.01 • Many years experience with architecture, migrations, installations, integration, customization • Owner at Ramsit • Hard core (average) table tennis player • Social Connections User group board member
- 4. Overview • Nagios • WebSphere PTT • Nmon Visualizer
- 5. • https://www.nagios.com • Nagios Core - The open source industry standard in IT infrastructure monitoring and alerting • Download Core: https://www.nagios.org/downloads/nagios-core/ • https://exchange.nagios.org – for 3rd party plugins and add ons • Nagiosql (https://sourceforge.net/projects/nagiosql/ www.nagiosql.org ) - GUI configuration interface • Front ends – Looking glass - https://exchange.nagios.org/directory/Addons/Frontends-%28GUIs- and-CLIs%29/Web-Interfaces/Nagios-Looking-Glass/details
- 6. • IS FREE !!! – well open source • Linux based – runs on RHEL or CENTOS • Super easy to set up – very well DOCUMENTED • Features: Monitoring - System metrics, network protocols, applications, services, servers, and network infrastructure Alerting - Nagios sends alerts when critical infrastructure components fail and recover. Alerts can be delivered via email, SMS, or custom script. Reporting - Provide a historical record of outages, events, notifications, and alert response for later review. Availability reports help ensure your SLAs are being met.
- 9. Nagios & Websphere • Basic WAS monitoring • Up or Down check on soap port of each server • Up or Down of host machine – via a ping or host up command • Plugins: https://github.com/yannlambret/websphere-nagios - JVM heap monitoring, Server thread pools monitoring - including hung thread detection, JTA transactions monitoring,JDBC datasources monitoring, JMS connection factories monitoring, JMS 1.0 listeners status monitoring, SIB queues depth monitoring, HTTP sessions monitoring, Clustering support, Administrative security support https://github.com/dvarounis/perfservmon - Perfservmon is a Nagios Plugin for IBM Websphere Application Server(WAS) using the perfservlet web application that comes with each WAS installation. Can monitor - Heap Usage, Web Container Thread Pool Usage, ORB Thread Pool Usage, JDBC Connection Pool Usage, Live HTTP Sessions, JMS SIB Destination(Queue, Topic) Metrics
- 10. Nagios & HTTP • Basic HTTP monitoring • Ports up / down on 80, 443 and 8008 • Can monitor for specific codes 500 / 404 etc. • WAS plugins in the previous slides also monitor HTTP sessions.
- 11. Nagios & DB • Basic up and down check • Lots of plugins for monitoring • https://github.com/angoca/monitor-db2-with-nagios - bunch of really useful stuff - check_hadr_status - works with V10.5 - check_tablespace_size – 9.7 and up - check_db2diag –9.7 and up - check_instance_up – 9.7 and up - check_instance_memory – 9.7 and up - check_last_backup – 9.7 and up - check_log_consumption – 9.7 and up - check_log_usage – 9.7 and up
- 12. Performance indicators WebSphere • WebSphere Application Server Performance Tuning Toolkit (PTT) • Free, Eclipse based tool provided by IBM • Yes, it’s free and from IBM and it works
- 13. WebSphere Application Server Performance Tuning Toolkit (WAS PTT) • Benefits: • No install on servers • Real time • Rule based • Easy to use interface
- 14. WAS PTT • Install: • Download, unzip, run… • Configuration
- 15. Data Collection
- 16. Visual reports
- 17. Visual reports
- 18. Visual reports
- 19. Visual reports
- 20. Visual reports
- 21. Visual reports
- 22. Visual reports
- 23. Reports • Ability to run reports (pdf, csv)
- 24. WAS PTT • Ability to get tuning data (and update them)
- 25. WAS PTT • Ability to generate: • Thread Dump • Heap Dump • Enable Trace • Show Connection Pool contents • Get Server Logs
- 26. How to find performance indicators HTTP Server: mod_status • Apache module • HTML Interface: Ex. : http://www.apache.org/server-status
- 27. How to find performance indicators HTTP Server: mod_status
- 28. How to find performance indicators HTTP Server: mod_status • Easy to setup in httpd.conf
- 29. Nmon Visualizer • Easier than the excel file • Open source tool • Developed by IBM to monitor Smartcloud • Apache 2.0 License • nmon files from Linux and AIX, IOStat files, IBM Verbose GC logs, Windows Perfmon & ESXTop csv data and JSON data
- 30. Nmon Visualizer
- 31. Nagios & DB2 Monitoring • Each script is individually configurable • Edit the script directly or use GUI config (nagiosQL) • Alerting settings are configured at Nagios level
- 32. Nagios & DB2 Monitoring • https://github.com/angoca/monitor-db2-with-nagios • check_connection_qty - quantity of connections on the database and the state they are currently in, lockwait, connecting, rollback etc .. • check_database_connection – checks a connection to the DB • check_database_size – set threshold alerts, etc. • check_lock_wait – 10.5 and above – checks lock waits • check_memory_usage - usage memory: total, free, usage • check_open_files – open files per instance
- 33. References and links • Performance Tuning Toolkit • http://www.ibm.com/developerworks/websphere/downloads/performtuning.html • Mod_status • http://www.tecmint.com/monitor-apache-web-server-load-and-page-statistics/ • Nmon Visualizer • http://nmonvisualizer.github.io/nmonvisualizer/
- 34. References and links • Nagios • Core Download - https://www.nagios.org/downloads/nagios-core/ • Nagios Exchange - https://exchange.nagios.org • DB2 Plugins - https://github.com/angoca/monitor-db2-with-nagios http://www.dbatodba.com/db2/scripts-db2/nagios-plugins/ • WebSphere Plugins - https://github.com/yannlambret/websphere-nagios https://github.com/dvarounis/perfservmon
- 35. Any Questions?