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make sure first backend sync happens in timer phase

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This commit is contained in:
Elvin Efendi 2020-04-30 09:12:50 -04:00
parent 81514a50c1
commit 3b217cf766
1 changed files with 12 additions and 5 deletions
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17
rootfs/etc/nginx/lua/balancer.lua
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@ -248,11 +248,18 @@ local function get_balancer()
end
function _M.init_worker()
sync_backends() -- when worker starts, sync backends without delay
local _, err = ngx.timer.every(BACKENDS_SYNC_INTERVAL, sync_backends)
if err then
ngx.log(ngx.ERR, "error when setting up timer.every for sync_backends: ",
tostring(err))
-- when worker starts, sync backends without delay
-- we call it in timer because for endpoints that require
-- DNS resolution it needs to use socket which is not avalable in
-- init_worker phase
local ok, err = ngx.timer.at(0, sync_backends)
if not ok then
ngx.log(ngx.ERR, "failed to create timer: ", err)
end
ok, err = ngx.timer.every(BACKENDS_SYNC_INTERVAL, sync_backends)
if not ok then
ngx.log(ngx.ERR, "error when setting up timer.every for sync_backends: ", err)
end
end