Rajeev-01 commented on code in PR #13740:
URL: https://github.com/apache/hudi/pull/13740#discussion_r2290330723


##########
hudi-common/src/main/java/org/apache/hudi/common/util/ConfigUtils.java:
##########
@@ -685,11 +686,37 @@ public static TypedProperties fetchConfigs(
 
   public static void recoverIfNeeded(HoodieStorage storage, StoragePath 
cfgPath,
                                      StoragePath backupCfgPath) throws 
IOException {
+    boolean needCopy = false;
     if (!storage.exists(cfgPath)) {
-      // copy over from backup
-      try (InputStream in = storage.open(backupCfgPath);
-           OutputStream out = storage.create(cfgPath, false)) {
-        FileIOUtils.copy(in, out);
+      needCopy = true;
+    } else {
+      TypedProperties props = new TypedProperties();
+      try (InputStream in = storage.open(cfgPath)) {
+        props.load(in);
+        if (!props.containsKey(TABLE_CHECKSUM.key()) || 
!HoodieTableConfig.validateChecksum(props)) {
+          // the cfg file is invalid
+          storage.deleteFile(cfgPath);
+          needCopy = true;
+        }
+      }
+    }
+    if (needCopy && storage.exists(backupCfgPath)) {

Review Comment:
   Yeah that's true, but not ruling out the FS operations open for users, I 
just added it as a preventive check 😅 



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