We have already established the following requirements for the statistic gathering and monitoring tool:
• I want my tool to gather statistical information about:
• CPU and memory utilization
• System overview: requests rate, data rate, established connections
• Overview of all virtual servers: up/down and what services are down within each
• These can be split into two groups:
• System status (CPU, memory and request rate readings)
• Virtual server status (virtual server states)
We can now split our implementation into two parts, which is easier to code and test.
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