public void incDetailStats(String detailKey) {
        if (isStopped()) {
            return;
        }
        statsUnits[getWriteIndex()].incDetailStats(detailKey);
    }
add detail statistic items

@param detailKey the detail key
inlong-dataproxy/dataproxy-source/src/main/java/org/apache/inlong/dataproxy/metrics/stats/MonitorStats.java