HTTP Transaction Timers

Transaction Timers at various states

Traffic Server runs a variety of timers at various states of a transaction. Typically, a given transaction may include upto two connections (one on the UA/client side and the other on the Origin side). Traffic Server supports two kinds of timers “Active” and “Inactive” timers for each side respectively, as applicable at a given state. The below picture illustrates the specific timers run at various states in the current implementation. The picture only depicts the HTTP transaction level timers and does not include the TLS handshake states and other more detailed/internal timers in each individual state.

（配图见官方原文，此处从略）

Transaction Timers in various states