Fast cache purge in content delivery network

A method for processing a purge request, comprising:

• receiving the purge request;
• tracking an availability state for each content distribution node in a group of content distribution nodes;
• generating, based on the purge request, one or more purge instructions for one or more available state content distribution nodes of the group;
• queuing, based on the purge request, one or more queued purge instructions for one or more unavailable state content distribution nodes of the group;
• determining that the one or more available state content distribution nodes of the group have completed processing the one or more purge instructions generated for the one or more available state content distribution nodes;
• and
• using a processor to authorize, based at least in part on the queuing of the one or more queued purge instructions for the one or more unavailable state nodes, an indication that the purge request has been completed.

A computer program product for processing a purge request, the computer program product being embodied in a tangible non-transitory computer readable storage medium and comprising computer instructions for:

• receiving the purge request;
• tracking an availability state for each content distribution node in a group of content distribution nodes;
• generating, based on the purge request, one or more purge instructions for one or more available state content distribution nodes of the group;
• queuing, based on the purge request, one or more queued purge instructions for one or more unavailable state content distribution nodes of the group;
• determining that the one or more available state content distribution nodes of the group have completed processing the one or more purge instructions generated for the one or more available state content distribution nodes;
• and
• authorizing, based at least in part on the queuing of the one or more queued purge instructions for the one or more unavailable state nodes, an indication that the purge request has been completed.