open-webui/backend/open_webui
Classic298 c5ec01b1f9
fix: make the aiodns resolver opt-in and pin aiodns to 3.6.1 (#28242)
Since v0.11.0 shipped aiodns, aiohttp silently switched every outbound request from the OS resolver to c-ares. On some Windows hosts the bundled c-ares 1.34.6 (pycares 5) discovers only 127.0.0.1:53 as nameserver, so every external provider lookup fails (#28013). In Docker the long-lived c-ares channel intermittently stops resolving container names while Docker's embedded DNS keeps answering, which wipes the Ollama model list and fails all in-flight chats with a misleading "Model not found" (#28215).

This restores the pre-0.11 ThreadedResolver (OS resolver) by default and gates the c-ares path behind a new env var, AIOHTTP_CLIENT_ASYNC_DNS_RESOLVER, off by default. The event-loop DNS perf improvement is now opt-in for deployments whose resolver setup is known to work with c-ares, instead of a process-wide side effect of the package being installed.

aiodns is also downgraded and pinned to 3.6.1 (pycares<5), the last release before the broken c-ares 1.34.6 build, so opting in does not hit the Windows regression. The hardcoded AsyncResolver in the Mistral OCR loader now follows the same switch. Simply removing aiodns instead was not an option because opting in would then be impossible, and #28215 showed the Docker failure is c-ares itself, not aiodns 4.x.
2026-08-10 19:52:29 -06:00
..
data refac: mv backend files to /open_webui dir 2024-09-04 16:54:48 +02:00
internal perf: route native JSON columns through JSONCodec instead of stdlib json (#28396) 2026-08-10 19:39:49 -05:00
migrations perf: index group_member on (user_id, group_id) (#27822) 2026-07-31 19:09:15 -05:00
models refac 2026-08-10 19:46:46 -06:00
retrieval fix: make the aiodns resolver opt-in and pin aiodns to 3.6.1 (#28242) 2026-08-10 19:52:29 -06:00
routers fix(retrieval): report why a URL could not be read instead of blaming the knowledge base (#28362) 2026-08-10 19:18:04 -06:00
socket fix: catch the socket.io timeout in the event caller (#28311) 2026-08-08 18:33:12 -06:00
static refac 2026-07-27 19:39:36 -04:00
storage refac 2026-07-31 17:41:14 -04:00
tools refac 2026-08-05 00:47:49 -05:00
utils refac 2026-08-10 19:44:56 -06:00
__init__.py refac 2026-07-27 19:39:36 -04:00
alembic.ini fix: Alembic CLI commands from failing 2025-08-15 04:17:47 -04:00
config.py refac 2026-08-10 19:08:46 -06:00
constants.py refac 2026-07-27 19:39:36 -04:00
env.py fix: make the aiodns resolver opt-in and pin aiodns to 3.6.1 (#28242) 2026-08-10 19:52:29 -06:00
events.py refac 2026-07-27 19:39:36 -04:00
functions.py perf: build debug log messages lazily so disabled debug logs cost nothing (#27834) 2026-07-31 19:09:01 -05:00
main.py refac 2026-08-10 19:41:05 -06:00
tasks.py refac 2026-07-31 17:41:14 -04:00