Sorted:

How to optimize the performance of a Hadoop cluster?

How does Zabbix collect and monitor data?

What are triggers used for in Zabbix?

What is the difference between Zabbix Agent and Zabbix Proxy?

What notification methods does Zabbix support?

What types of systems and services does Zabbix monitor?

How are templates used in Zabbix?

What does Zabbix’s auto-discovery feature do?

What is the usage of realpath in PHP?

What is the process of migrating data in HBase?