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memoize balancer for a request

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This commit is contained in:
Elvin Efendi 2019-07-26 09:35:58 -04:00
parent e1f062dd53
commit 6f7b66fc7d
1 changed files with 7 additions and 1 deletions
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8
rootfs/etc/nginx/lua/balancer.lua
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@ -190,6 +190,10 @@ local function route_to_alternative_balancer(balancer)
end end
local function get_balancer() local function get_balancer()
if ngx.ctx.balancer then
return ngx.ctx.balancer
end
local backend_name = ngx.var.proxy_upstream_name local backend_name = ngx.var.proxy_upstream_name
local balancer = balancers[backend_name] local balancer = balancers[backend_name]
@ -201,8 +205,10 @@ local function get_balancer()
local alternative_backend_name = balancer.alternative_backends[1] local alternative_backend_name = balancer.alternative_backends[1]
ngx.var.proxy_alternative_upstream_name = alternative_backend_name ngx.var.proxy_alternative_upstream_name = alternative_backend_name
return balancers[alternative_backend_name] balancer = balancers[alternative_backend_name]
end end
ngx.ctx.balancer = balancer
return balancer return balancer
end end