Overload Protection

If too much information is generated that cannot be cumulated by the perfino collector, the system would be overloaded - the perfino collector would not be able to keep up with its consolidation efforts, the database would grow to eat up all disk space and the UI would become sluggish or unusable.

In a correct configuration, a limited amount of distinct information is generated. For the case that the configuration is not optimal, perfino provides an overload protection mechanism that prevents a breakdown by capping various recording types and warning you with inbox messages that your configuration needs to be adjusted.

When an overload cap is reached, the recorded information is not discarded, but no new names are generated and all further information is shown cumulated in a "capped description" node. While total numbers remain correct, insight into recording details is restricted until you fix your configuration and reset the cap counters.

Types of overloads

The problematic data collection types include

Configuring overload protection

Each overload type is configurable separately. Open the general settings, select the "Global Settings" tab and change one of the maximum numbers in the "Overload protection" section.

Next to each overload type, a colored label informs you whether the particular cap has been reached yet or not. For example, if the transaction name cap has been reached, a typical strategy is to change the configuration so that less transaction names are created. After that, you want perfino to start counting again from zero. Click the Reset all cap counters to zero button in order to reset all counters.