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chore(clustering): adjust control plane log level when client closes the connection #13714

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chore(clustering): adjust control plane log level when client closes the connection #13714

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19 changes: 17 additions & 2 deletions kong/clustering/control_plane.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -76,6 +76,11 @@ local function is_timeout(err)
end


local function is_closed(err)
return err and sub(err, -6) == "closed"
end


local function extract_dp_cert(cert)
local expiry_timestamp = cert:get_not_after()
-- values in cert_details must be strings
Expand Down Expand Up @@ -490,12 +495,22 @@ function _M:handle_cp_websocket(cert)
--update_sync_status()

if not ok then
ngx_log(ngx_ERR, _log_prefix, err, log_suffix)
if is_closed(err) then
ngx_log(ngx_DEBUG, _log_prefix, "data plane closed the connection", log_suffix)
else
ngx_log(ngx_ERR, _log_prefix, err, log_suffix)
end

return ngx_exit(ngx_ERROR)
end

if perr then
ngx_log(ngx_ERR, _log_prefix, perr, log_suffix)
if is_closed(perr) then
ngx_log(ngx_DEBUG, _log_prefix, "data plane closed the connection", log_suffix)
else
ngx_log(ngx_ERR, _log_prefix, perr, log_suffix)
end

return ngx_exit(ngx_ERROR)
end

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