ChenSammi commented on code in PR #6054:
URL: https://github.com/apache/ozone/pull/6054#discussion_r1465766476


##########
hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/io/BlockOutputStreamEntryPool.java:
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@@ -368,7 +371,16 @@ void hsyncKey(long offset) throws IOException {
       if (keyArgs.getIsMultipartKey()) {
         throw new IOException("Hsync is unsupported for multipart keys.");
       } else {
-        omClient.hsyncKey(keyArgs, openID);
+        if (keyArgs.getLocationInfoList().size() == 0) {
+          omClient.hsyncKey(keyArgs, openID);
+        } else {
+          ContainerBlockID lastBLockId = 
keyArgs.getLocationInfoList().get(keyArgs.getLocationInfoList().size() - 1)
+              .getBlockID().getContainerBlockID();
+          if (!lastUpdatedBlockId.equals(lastBLockId)) {
+            omClient.hsyncKey(keyArgs, openID);

Review Comment:
   when a new block is allocated, only the openKeyInfo is updated with new 
block with the block default size, the keyInfo will not get updated. Only the 
keyCommit(hsyncKey) will update the keyInfo with a real block data length. 



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