[Rspamd-Users] constant redis/lua errors in rspamd logs [bug]

[Vsevolod Stakhov]

On 12/12/2024 17:33, Gerald Galster wrote:
>>>> Do you require expand_keys and/or prefix?
>>>>
>>>> If not, try to remove them from config. Stop rspamd and redis, move the *.rdb file elsewhere.
>>>> Start redis and rspamd and learn a bunch of spam-/ham mails and see if the error persists.
>>>>
>>>> You could also try redis_cli monitor to see what's going on.
>>>>
>>> Hmm, after restarting rspamd everything went back to normal - with everything across the board related to redis - as far as logs go at least.
>>> It turned out restarting redis caused the issues - it looks like rspamd doesn't not attempt to reconnect and just throws errors in the logs. And such state persists indefinitely until rspamd itself is restarted.
>>> Is there any way to enforce reconnection ? I see no obvious options anywhere ...
>>
>> One more to add - judging from connections rspamd indeed reconnects to redis, but it doesn't really change the functional side - parts of rspamd are not aware that reconnection happened.
>>
>> Maybe this should be reported reported as a bug.
> 
> This seems like a bug and is reproducible with rspamd 3.10.2 and valkey on RHEL derivatives.
> 
> Open a bug report here: https://github.com/rspamd/rspamd/issues
> 
> 
> # systemctl restart valkey
> 
> rspamd[2907245]: <>; ; lua_redis_push_error: call to callback failed:
> /usr/share/rspamd/lualib/lua_redis.lua:1465: bad format string type: nil; trace:
>   [1]:{[C]:-1 - infox [C]};
>   [2]:{/usr/share/rspamd/lualib/lua_redis.lua:1465 - callback [Lua]};
>   [3]:{/usr/share/rspamd/lualib/lua_redis.lua:1063 - <unknown> [Lua]};
> 
> rspamd[2907244]: <4Y8Jvk>; lua; lua_redis.lua:1465: redis script from file: bayes_classify.lua
>   is not loaded (NOSCRIPT returned), scheduling reload
> 
> rspamd[2907244]: <4Y8Jvk>; lua; lua_redis.lua:1465: redis script with id: 24
>   is not loaded (NOSCRIPT returned), scheduling reload
> 
> 
> Best regards,
> Gerald
> 

It's a different issue: 
https://github.com/rspamd/rspamd/commit/887b84d1fa6235d4582d7468a662873e5edefe91

The original report is slightly different but it's a similar one I suppose.