Render logs are the most common type of log that the player returns to the origin server. A render log contains only information about playback events. A render log entry is sent to the server whenever the player stops rendering the content, such as when user clicks the stop, pause, fast forward or rewind buttons.
A player that reads the content from a local cache, such as during a Fast Streaming session, sends a render log when it finishes playing back the content.
Render logs are only available when streaming on-demand content using the TCP network protocol. Streaming protocols that do not support Fast Streaming, such as UDP and MMST, also do not support render logs. A render log contains no network statistics, always lists network quality as 100 percent, and always lists the network protocol as "CACHE".