How can I set the log level of an SDK tap? I've look through the code and it looks like

TAP_<NAME>_LOG_LEVEL=ERROR

should work, but doesn't...

Should be

TAP_<NAME>_LOGLEVEL=ERROR

I believe

Sorry, typo in the OP - I have tried that.

Hmm, I can confirm that does work for me:

$ TAP_GEEKBOT_LOGLEVEL=warning poetry run tap-geekbot
2025-05-22 09:39:33,461 | ERROR    | tap-geekbot          | Config validation error: 'api_key' is a required property

$ TAP_GEEKBOT_LOGLEVEL=debug poetry run tap-geekbot
2025-05-22 09:39:52,537 | DEBUG    | tap-geekbot          | Validating config using jsonschema: {'type': 'object', 'properties': ...
2025-05-22 09:39:52,537 | ERROR    | tap-geekbot          | Config validation error: 'api_key' is a required property

Oh, I think it's actually the SDK logger I'm interesting in reducing the level of. Looks like the tap logging is controlled by that environment variable, but I'm still seeing a bunch of logging stemming from

singer_sdk

. Perhaps

LOGLEVEL=error

will work...

I see the problem. We only use that env var to set the level of the

<plugin_name>

logger: https://github.com/meltano/sdk/blob/8adf45277b07c13071af875bc0c9e9419766908d/singer_sdk/plugin_base.py#L144-L152

Yeah, that's what I was looking at.

But I do think that `TAP_<NAME>_LOGLEVEL`/`LOGLEVEL` should control the SDK log level also.

Yeah, I agree.

Although, having written my requirement out I don't think it is actually as simple as setting all loggers to the given log level.

You probably want a logging config file: https://sdk.meltano.com/en/v0.46.3/implementation/logging.html#custom-logging-configuration

Makes sense, thanks for the docs link.