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Preventing the agent overload

The WhaTap server monitoring agent for Linux and Windows servers provides the following agent settings to help maintain server stability and minimize the resource usage impact when any overload occurs.

Linux / Windows​

Memory usage protection​

The WhaTap agent automatically restarts the process when the memory usage exceeds the threshold (100 MB) to protect available memory on your server.

memory.usage.limit=104857600  # Memory usage threshold (100 MB, unit of byte)

Automatic restart​

The WhaTap agent automatically restarts once a day. The cycle can be adjusted via user settings. This feature is provided to address data collection failures and temporary process malfunctions.

housekeeping.enabled=true             # Activation of automatic restart (Default: true)
housekeeping.hour=2                   # Restart time (based on the server time, Default: 2 O'clock)
housekeeping.exitoncheckfail=true     # Automatic restart upon collection failure (Default: true)

CPU usage protection​

When the CPU usage exceeds the threshold, the WhaTap agent automatically adjusts the execution speed to protect the CPU availability of the server. It is disabled by default and can be enabled if necessary.

cpu.limit.enabled=false           # Disable the CPU usage protection (Default: false)
cpu.usage.limit=50                # CPU usage threshold (50% based on the sigle core)

Windows​

Handle usage protection​

In the Windows environment, if the number of handles used by the WhaTap agent exceeds the threshold (1,000), it is automatically restarted to protect the available handles of the user server.

windows.handle.threshold=1000    # Handle usage threshold (Default: 1,000)