This hands-on lab is built around the objectives identified by Red Hat for the `Red Hat Certified Specialist in Performance Tuning (EX442)` exam. The EX442 exam is a practical, scenario-based exam. This lab is not an exact copy of the exam; it is designed to provide possible tasks and situations that you might encounter when taking the exam.
The lab will have a 4-hour time limit, matching the actual `EX442` exam duration, and will serve as a summary of the some of the lessons and materials covered during this course.
Good luck with your studies!
*This course is not approved or sponsored by Red Hat.*
Learning Objectives
Successfully complete this lab by achieving the following learning objectives:
- Review and Investigate the evocortl Service
- Check the status of the
evocortlservice.- If the service is not running, start the service.
- Investigate relevant log files, including
journalctland/var/log/messages. - Correct any issues identified during the troubleshooting process.
- Note: This service should be optimized to limit memory impact to 1000M.
- Check the status of the
- Review and Investigate the evocordd Service
- Check the status of the
evocorddservice.- If the service is not running, start the service.
- Investigate relevant log files, including
journalctland/var/log/messages. - Correct any issues identified during the troubleshooting process.
- Note: This service should be optimized to limit CPU impact to 20% utilization.
- Check the status of the
- Review and Investigate the evocordatlg Service
- Check the status of the
evocordatlgservice.- If the service is not running, start the service.
- Investigate relevant log files, including
journalctland/var/log/messages. - Correct any issues identified during the troubleshooting process.
- Note: This service does not have a hard optimization requirement but does have a recommended requirement, so be sure to investigate properly.
- Check the status of the
- Reboot the Lab and Confirm Changes Persist
- Run the
/home/cloud_user/examvalidation.shto audit the system.- NOTE: The script must be executed with elevated privileges.
- Review the script output.
- If any
Statusitems are marked asREVIEW, review the details closely. - NOTE: There are several ways that issues could be resolved, so it is possible that your solutions may not be audited by the script. In this situation, manually review the configurations to ensure everything is operating and optimized to meet system requirements.
- If any
- Run the
