private void validateDistributionFactorUpper(double distributionFactorUpper) {
        checkState(
                doubleCompare(distributionFactorUpper, 1.0d) >= 0,
                String.format(
                        "The value of option '%s' must larger than or equals %s, but is %s",
                        SPLIT_KEY_EVEN_DISTRIBUTION_FACTOR_UPPER_BOUND.key(),
                        1.0d,
                        distributionFactorUpper));
    }
Checks the value of given evenly distribution factor upper bound is valid.
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/mysql-cdc/src/main/java/org/apache/inlong/sort/cdc/mysql/table/MySqlTableInlongSourceFactory.java