Details
Major Description
The monitors and services support authentication without a password e.g. for TLS certificate based authentication via REQUIRE. The configuration serializes empty password values as JSON nulls with the expectation that they're not defined if they're empty. This does not work when the password is defined but empty in the original configuration as it gets removed via the serialization to JSON when stored in the database.
The failure will look something like this:
2026-07-07 15:05:17 error : (ConfigManager); monitors: The mandatory parameter 'password' is not provided.
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2026-07-07 15:05:17 error : (ConfigManager); Failed to revert the failed configuration change, the MaxScale configuration is in an indeterminate state. The error that caused the failure was: Failed to update monitor 'MariaDB-Monitor'
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2026-07-07 15:05:17 error : (ConfigManager); Cached configuration was not removed, cannot safely abort the process.
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