Call chain-based concurrency control method and apparatus, and control node

A control node comprising:

• a memory;
• and
• a processor coupled to the memory and configured to:
• identify, based on an analysis of statistical data of a plurality of service nodes communicatively coupled to the control node, a target service node needing adjustment of a concurrency threshold, wherein the target service node has a neighboring service node, and wherein the concurrency threshold indicates a maximum value of service requests that can be processed in parallel by the target service node;
• obtain the concurrency threshold and a weight of the target service node, wherein the weight indicates a number of times that the target service node can process service requests from the neighboring service node;
• determine an updated concurrency threshold of the target service node according to the concurrency threshold, the analysis, a neighboring concurrency threshold, and a neighboring weight of the neighboring service node;
• and
• send an adjustment request to the target service node to instruct the target service node to adjust the concurrency threshold to the updated concurrency threshold.

A computer program product comprising computer-executable instructions stored on a non-transitory computer-readable medium that, when executed by a processor, cause a control node to:

• identify, based on an analysis of statistical data of a plurality of service nodes communicatively coupled to the control node, a target service node needing adjustment of a concurrency threshold, wherein the target service node has a neighboring service node, and wherein the concurrency threshold indicates a maximum value of service requests that can be processed in parallel by the target service node;
• obtain the concurrency threshold and a weight of the target service node, wherein the weight indicates a number of times that the target service node can process service requests from the neighboring service node;
• determine an updated concurrency threshold of the target service node according to the concurrency threshold, the analysis, a neighboring concurrency threshold, and a neighboring weight of the neighboring service node;
• and
• send an adjustment request to the target service node to instruct the target service node to adjust the concurrency threshold to the updated concurrency threshold.