AdguardTeam / AdGuardHome

Network-wide ads & trackers blocking DNS server
https://adguard.com/adguard-home/overview.html
GNU General Public License v3.0
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One upstream timeout, not using others when parallel queries is selected #7390

Open nosuchstudio opened 3 weeks ago

nosuchstudio commented 3 weeks ago

Prerequisites

Platform (OS and CPU architecture)

Linux, AMD64 (aka x86_64)

Installation

GitHub releases or script from README

Setup

On one machine

AdGuard Home version

0.107.53

Action

Replace the following command with the one you're calling or a description of the failing action:

Sometimes the AdGuard Home just stopped responding to queries. WebUI working, query log shows no new records, it seems to just stop working all of a sudden.

The command line tool recorded the following logs: i/o timeout or timeout: no recent network activity

I also have other upstream DNS servers, but AdGuard's query thread appears to be blocked due to one DNS server's timeout.

Expected result

AdGuard Home gets responses from upstream servers and forwards them to clients.

Actual result

client dig timed out. AdGuard Home's WebUI shows no recent DNS entries. Debug level logging file shows ERROR - i/o timeout or timeout, not trying other servers. Already set to "parallel query".

Additional information and/or screenshots

2024/10/30 02:37:48.070251 ERROR response received addr=https://cloudflare-dns.com:443/dns-query proto=udp status="requesting https://cloudflare-dns.com:443/dns-query: Get_0rtt \"https://cloudflare-dns.com:443/dns-query?dns=[redacted]\": timeout: no recent network activity" 2024/10/30 02:37:48.070276 ERROR response received addr=https://cloudflare-dns.com:443/dns-query proto=udp status="requesting https://cloudflare-dns.com:443/dns-query: Get_0rtt \"https://cloudflare-dns.com:443/dns-query?dns=[redacted]\": timeout: no recent network activity" 2024/10/30 02:37:48.070293 ERROR response received addr=https://cloudflare-dns.com:443/dns-query proto=udp status="requesting https://cloudflare-dns.com:443/dns-query: Get_0rtt \"https://cloudflare-dns.com:443/dns-query?dns=[redacted]\": timeout: no recent network activity" 2024/10/30 02:37:48.070293 ERROR response received addr=https://cloudflare-dns.com:443/dns-query proto=udp status="requesting https://cloudflare-dns.com:443/dns-query: Get_0rtt \"https://cloudflare-dns.com:443/dns-query?dns=\": timeout: no recent network activity" 2024/10/30 02:37:53.043377 ERROR response received addr=1.1.1.1:53 proto=udp status="exchanging with 1.1.1.1:53 over udp: read udp [ip]->1.1.1.1:53: i/o timeout" 2024/10/30 02:37:53.045551 ERROR response received addr=1.1.1.1:53 proto=udp status="exchanging with 1.1.1.1:53 over udp: read udp [ip]->1.1.1.1:53: i/o timeout" 2024/10/30 02:37:53.045573 ERROR response received addr=1.1.1.1:53 proto=udp status="exchanging with 1.1.1.1:53 over udp: read udp [ip]->1.1.1.1:53: i/o timeout" 2024/10/30 02:37:53.046651 ERROR response received addr=1.1.1.1:53 proto=udp status="exchanging with 1.1.1.1:53 over udp: read udp [ip]->1.1.1.1:53: i/o timeout"

SukkaW commented 3 weeks ago

See also #7357. Seems to be the same issue.