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net.dns: Add some debug logging

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This commit is contained in:
Matthew Wild 2020-06-25 15:22:40 +01:00
parent f3add85e3c
commit 5f4fcad112
1 changed files with 4 additions and 0 deletions
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4
net/dns.lua
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@ -17,6 +17,8 @@ local have_timer, timer = pcall(require, "util.timer");
local new_ip = require "util.ip".new_ip;
local have_util_net, util_net = pcall(require, "util.net");
local log = require "util.logger".init("dns");
local _, windows = pcall(require, "util.windows");
local is_windows = (_ and windows) or os.getenv("WINDIR");
@ -877,6 +879,7 @@ function resolver:query(qname, qtype, qclass) -- - - - - - - - - - -- query
timer.add_task(self.timeout, function ()
if get(self.wanted, qclass, qtype, qname, co) then
if i < num_servers then
log("debug", "DNS request timeout %d/%d", i, num_servers)
i = i + 1;
self:servfail(conn);
o.server = self.best_server;
@ -904,6 +907,7 @@ function resolver:servfail(sock, err)
-- Find all requests to the down server, and retry on the next server
self.time = socket.gettime();
log("debug", "servfail %d (of %d)", num, #self.server);
for id,queries in pairs(self.active) do
for question,o in pairs(queries) do
if o.server == num then -- This request was to the broken server