[GitHub] [ozone] smengcl commented on a change in pull request #2463: HDDS-5483.Validate block file length during put block

[GitBox <gi...@apache.org>]

smengcl commented on a change in pull request #2463:
URL: https://github.com/apache/ozone/pull/2463#discussion_r677896200



##########
File path: hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/KeyValueHandler.java
##########
@@ -427,6 +429,17 @@ ContainerCommandResponseProto handlePutBlock(
       ContainerProtos.BlockData data = request.getPutBlock().getBlockData();
       BlockData blockData = BlockData.getFromProtoBuf(data);
       Preconditions.checkNotNull(blockData);
+      ChunkLayOutVersion layoutVersion =
+          ChunkLayOutVersion.getConfiguredVersion(conf);
+      if (layoutVersion == FILE_PER_BLOCK) {
+        File blockFile = layoutVersion
+            .getChunkFile(kvContainer.getContainerData(),
+                blockData.getBlockID(), null);
+        // ensure that the putBlock length <= blockFile length
+        Preconditions.checkArgument(blockFile.length() >= blockData.getSize(),

Review comment:
       Under what conditions could this be violated?




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