[INLONG-11969][Sort] Fix NullPointer of cdc metric (#11970)

vernedeng · vernedeng · web-flow · commit cf22c92871d6 · 2025-08-18T16:07:58.000+08:00
Co-authored-by: vernedeng &lt;vernedeng@tecent.com&gt;
diff --git a/inlong-sort/sort-flink/base/src/main/java/org/apache/inlong/sort/base/metric/CdcExactlyMetric.java b/inlong-sort/sort-flink/base/src/main/java/org/apache/inlong/sort/base/metric/CdcExactlyMetric.java
@@ -20,6 +20,7 @@
 import org.apache.inlong.audit.AuditReporterImpl;
 
 import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.collections.MapUtils;
 import org.apache.flink.table.data.RowData;
 import org.apache.flink.types.RowKind;
 
@@ -60,6 +61,9 @@ public CdcExactlyMetric(MetricOption option) {
 
     @Override
     public void outputMetricsWithEstimate(Object data, long dataTime) {
+        if (MapUtils.isEmpty(auditKeyMap)) {
+            return;
+        }
         long size = getDataSize(data);
         if (data instanceof RowData) {
             RowData rowData = (RowData) data;
