ITCAM for Application Diagnostics Managing Server(MS) – Monitoring On Demand
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Have you ever wondered how much data is flowing from the ITCAM Data Collector to the Managing Server, depending on what MOD level you have set?
You can change the level of detail interactively from the Application Monitor or you can schedule changes in monitoring level to happen regularly. The application server being monitored does not have to be stopped and restarted when the monitoring level is changed. This capability to dynamically change the level of detail is known as Monitoring On Demand (MOD).
There are three main levels of monitoring detail: L1, L2, and L3.
The amount of data sent to MS from DC
L1 1 row per transaction
L2 100 - 200 rows per transaction
L3 5000 rows per transaction (low side)
- we have seen hundreds of thousands of rows per transactions
- This is highly variable, based on the application
- Bottom line is you get 2 rows (entry and exit) for each application method called
If you are running at MOD Level 3 with 100% sampling, be prepared for the database to fill quickly. In this case, you should be running your datatrim on a regular basis.