BOOL, can be read and
set, but not
Assemble the response from individually cacheable block-aligned file segments.
When you set this variable to
vcl_recv, you enable a mode referred
to as "segmented caching," in which Varnish retrieves and caches files from the
origin in segments.
req.enable_segmented_caching is used in the following code examples. Examples apply VCL to real-world use cases and can be deployed as they are, or adapted for your own service. See the full list of code examples for more inspiration.
Click RUN on a sample below to provision a Fastly service, execute the code on Fastly, and see how the function behaves.
Enable features gradually
Avoid a huge inrush of traffic to origin caused by gradually applying changes that affect the cache key, like segmented caching, over hours or days.