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Being able to throttle HTTP streams can be a valuable function for reducing bandwidth waste. TBD more details, Alan.

The following configurations have been added to control this feature (the default values are shown):

 CONFIG proxy.config.http.flow_control.enabled INT 0
 CONFIG proxy.config.http.flow_control.high_water INT 0
 CONFIG proxy.config.http.flow_control.low_water INT 0

CPU thread affinity

It is now possible to set thread affinity for the main worker threads. This can improve performance, particular on NUMA systems. This is configured via

 CONFIG proxy.config.exec_thread.affinity INT 1

Removed configurations

Delay proxy services until cache is enabled

When Traffic Server starts, we load meta-data information from the cache. For very large caches, this can take a fairly long time (several seconds). During this load and initialization time, the server will by default proxy requests to the origin. A new configuration has been added, which prevents proxying while the cache is being initialized:

 CONFIG proxy.config.http.wait_for_cache INT 1

Controlling chunking size

A new configuration option is added, which lets you control the size of the chunk sizes for content that is Transfer-Encoding with chunking (default value shown):The following configurations are no longer supported (or necessary). They should be removed from your records.config if you have them in there.

 CONFIG proxy.config.http.bandwidth_mgmtchunking.filenamesize STRINGINT ""
4096

New Plugin: cacheurl

TBD: More details.

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