Buffer wait events result from a contention in accessing database block buffers; for example, if the requested data block is in an incompatible mode (buffer busy), or if the buffer does not contain sufficient disk space for reading the data block (free buffer).
The process by which Foglight for Oracle determines the maximum and minimum values for every dataflow on the home page, by observing data moving through the database system. This information helps Foglight for Oracle display the data flows correctly.
Cartridges extend the functionality of Foglight and are installed on the Foglight Management Server. A cartridge contains one or more components, such as agents for deployment, communication capabilities, and modifications to the way that data is transformed or handled, as well as rules, reports, and views. When a cartridge is installed and enabled, its components become part of the Management Server. Adding cartridges allows users to monitor additional parts of their environment. For further details about managing cartridges, See the Foglight Administration and Configuration Guide.