KBI 311121 Issue Addressed: Delta Value Might Not Be Calculated Properly In Argent Non-Stop Monitor Environment
Version
Argent Advanced Technology 3.1A-1410-B and Earlier
Date
Monday, 24 Nov 2014
Summary
Delta value of performance data is implemented in Windows Performance Rule and SNMP Rule
Delta value might not be calculated properly in Argent Non-Stop Monitor Environment
The issue is addressed in Argent AT 3.1A-1410-C
Technical Background
When Argent AT engine processes delta value of performance data, it saves current values in files PERF_LAST_VALUE \{RULE}_POLL_VALUE.DAT, and uses them to calculate delta value in next run
In Argent Non-Stop Monitor environment, each Motor maintains its own set of such files
They store the values of last check done by the local Motor
Consider such a situation as follows:
Monitor A runs the Rule at 1 p.m., saving the last value at local disk
Monitor B runs the Rule at 2 p.m.
Then Motor A runs the Rule at 3 p.m. Motor A will use the last value saved locally, which is value of 1 p.m. instead of the more recent value of 2 p.m. run by Motor B
As a result, the delta value will be incorrect
Resolution
Upgrade to Argent AT 3.1A-1410-C or later