Learn about data buffering

Connectors are inherently capable of buffering data whenever data flows from one process boundary to another. Buffering is always on and is not user configurable. There are no separate processes associated with buffering. Each connector process buffers the data.

Configuration for buffering is limited to specifying the folder during setup to determine where data is buffered, along with other state information required by the connector; otherwise, all data is buffered in %ProgramData%\OSIsoft\Tau.

Connectors gather and group data when it is buffered, and when data is sent from connector to PI AF or Data Archive. Each server gets its own buffer queue in the connector, so data sent from connector to PI AF or Data Archive are buffered independently.