Excessive TrendLog Buffer Read Rate

Overview:

The "Excessive TrendLog Buffer Read Rate" diagnostic alerts when the gap between read requests to the TrendLog buffer exceeds the diagnostic threshold of once every 10 minutes. While some rapid consecutive reads are normal from time to time, a consistently high read rate can be problematic and an indication of an incorrect configuration.

Causes:

• Misconfiguration: Incorrectly configured settings may unintentionally set a very high read rate for a data point or sensor.
• Faulty Programming: Faulty or inefficient control programming can unintentionally trigger excessive data requests.

 Implications:

• Network Load: Excessive read rates can generate a high volume of network traffic, affecting network performance and response times.
• Resource Consumption: Frequent data polling can consume unnecessary system resources, leading to inefficiencies and affecting overall system stability.

How to fix it:

• Use OptigoVN Site Scope(s) to identify the MAC/IP addresses of all devices with excessive TrendLog buffer read rates. Adjust the configurations of devices to lower the frequency of TrendLog buffering, and retest to ensure the issue has been resolved. 
• Configuration Review: Review and verify configuration settings for the TrendLog object highlighted in the diagnostic event. Ensure that the threshold and buffer size are set to appropriate levels to avoid filling up the buffer too quickly.
• Testing: Conduct testing to ensure that the system's read rates are within acceptable limits and that data is collected efficiently.