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MySQL v2 Sensor with RDS Instance: Channel Graph doesn't reset

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PRTG version = 18.3.43.2323 Sensor = MySQL v2

DATABASE
We're monitoring a MariaDB RDS instance

SENSOR CONFIGS

  1. Data
    1. SQL Query File: custom-file.sql
    2. Handle DBNull in Channel Values as: Number 0
    3. Select Channel Value by: Column Number
    4. Sensor Channel #1 Name: Count
    5. Sensor Channel #1 Column Number: 0
    6. Sensor Channel #1 Unit: Count
  2. CHANNEL CONFIGS
    1. Limits: Enable alerting based on limits
    2. Upper Error Limit (#): 0
  3. SENSOR NOTIFICATION TRIGGERS
    1. State Trigger:
      1. When sensor state is Down: send alert
      2. When sensor state is Up: send alert

RESULTS / GOAL

  1. Custom-file.sql runs a select statement to get a count from a table
  2. The sql statement works and provides the correct value - we're simply running tests and updating the db to toggle the output to be expected
  3. the sensor is reporting the accurate count, and sending Down/Up alerts as expected
  4. the sensor is also reporting Red/Green correctly based on whether the count crosses limit

ISSUE
Channel graph color does not reset after alert clears. The sensor resets to an Up status/Green, but, the channel graph remains Red. This leads to a confusing visual when looking into the sensor specifically.

RESOURCES REFERENCED

mysql-v2-sensor prtg rds

Created on Nov 6, 2018 3:50:39 PM by  KryPRTGadmin (51) 1

Last change on Nov 7, 2018 1:08:34 PM by  Stephan Linke [Paessler Support]



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Thanks for the thorough description of the issue. Am I getting this correctly, that the main issue here is the channel gauge being red? This is due to the upper error limit being set to 0. You could use a lookup that causes the gauge to look differently:

Using lookups in PRTG

Let me know if that works for you :)


PRTG Scheduler | PRTGapi | Feature Requests | WMI Issues | SNMP Issues

Kind regards,
Stephan Linke, Tech Support Team

Created on Nov 7, 2018 1:11:22 PM by  Stephan Linke [Paessler Support]



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