Module resty.cassandra.policies.lb.req_rr
Request-aware round robin load balancing policy for OpenResty.
This policy will try to reuse the same node for the lifecycle of a given request if possible. It is mostly designed for use in OpenResty environments.
This ensures that the underlying connection pool to the node is reused as much as possible. If a new node is chosen for every query, there is no guarantee that each selected node will already have a pre-established connection. Since this policy reuses the same node for the lifecycle of a request, the chances of having to open a new connection are much reduced.
Info:
- Author: thibaultcha
Functions
| new () | Create a request-aware round robin policy. |
Functions
- new ()
-
Create a request-aware round robin policy.
Instanciates a request-aware round robin policy for resty.cassandra.cluster.
Returns:
-
table
policy: A request-ware round robin policy.Usage:
local Cluster = require "resty.cassandra.cluster" local req_rr = require "resty.cassandra.policies.lb.req_rr" local policy = req_rr.new() local cluster = assert(Cluster.new { lb_policy = policy })