
Chapter 2. Service implementation and optimization 51
*.dpa). The TTL value then determines how often the XML Manager retrieves a
fresh copy of the map files, as shown in Figure 2-7.
Figure 2-7 Configuring a Document Cache Policy
2.7 Streaming
This section discusses the file streaming within the DataPower appliance along
with its advantages and considerations.
2.7.1 Advantages of streaming
Streaming a file through the appliance means that the appliance begins to send
data to the back end destination before reading all data from the front side
connection. An in-memory copy of the entire request message never exists on
the appliance. As a result, ...