Fix storage-influxdb-plugin serviceCode query (#5792)

* Fix storage-influxdb-plugin serviceCode query

* Update CHANGES.md

Add the changelog for the PR as I have time.
Co-authored-by: Nyuanguohua <yuanguohua@fin-shine.com>
Co-authored-by: 吴晟 Wu Sheng <wu.sheng@foxmail.com>

CHANGES.md

@@ -27,6 +27,7 @@ Release Notes.
 * Fix the excessive timeout period set by the kubernetes-client.
 * Fix deadlock problem when using elasticsearch-client-7.0.0.
 * Fix storage-jdbc isExists not set dbname.
+* Fix `searchService` bug in the InfluxDB storage implementation.
 
 #### UI
 

oap-server/server-storage-plugin/storage-influxdb-plugin/src/main/java/org/apache/skywalking/oap/server/storage/plugin/influxdb/query/MetadataQuery.java

@@ -137,7 +137,7 @@ public class MetadataQuery implements IMetadataQueryDAO {
         WhereQueryImpl<SelectQueryImpl> query = select(ID_COLUMN, NAME)
             .from(client.getDatabase(), ServiceTraffic.INDEX_NAME)
             .where(eq(InfluxConstants.TagName.NODE_TYPE, String.valueOf(NodeType.Normal.value())));
-        query.and(eq(ServiceTraffic.NODE_TYPE, serviceCode));
+        query.and(eq(ServiceTraffic.NAME, serviceCode));
         return buildServices(query).get(0);
     }