public Meter getNumBytesInPerSecond() {
        return numBytesInPerSecond;
    }
User can use custom counter that extends from {@link Counter}
groupId and streamId and nodeId are label value, user can use it filter metric data when use metric reporter
prometheus
inlong-sort/sort-flink/base/src/main/java/org/apache/inlong/sort/base/metric/SourceMetricData.java