WT extensions use logging callback __wt_ext_err_printf for error logging. The function is using WT_VERB_EXTENSION as a category for logging.

However, the category is not mentioned in the __wt_verbose_config, and also not mentioned in the api_data.py file.

TODO:

Make WT_VERB_EXTENSION category to be visible for configs. The following config string should not produce any warnings or errors:

verbose=(extension:1)