improve handling stream

CHANGES.md

@@ -2,7 +2,8 @@
 
 ## 3.5.18-RC
 
-* 
+* Improvement: Optimize handling promise of stream when exporting
+* Improvement: Optimize handling promise of stream when building indices
 
 ## 3.5.17
 

src/server/service/export.js

@@ -208,7 +208,7 @@ class ExportService {
       .pipe(transformStream)
       .pipe(writeStream);
 
-    await streamToPromise(readStream);
+    await streamToPromise(writeStream);
 
     return writeStream.path;
   }

src/server/util/search.js

@@ -441,7 +441,7 @@ SearchClient.prototype.updateOrInsertPages = async function(queryFactory, isEmit
     .pipe(appendTagNamesStream)
     .pipe(writeStream);
 
-  return streamToPromise(readStream);
+  return streamToPromise(writeStream);
 
 };