[GitHub] [iceberg] lcspinter commented on a change in pull request #1559: Core: Update version-hint.txt atomically

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

lcspinter commented on a change in pull request #1559:
URL: https://github.com/apache/iceberg/pull/1559#discussion_r500936162



##########
File path: core/src/main/java/org/apache/iceberg/hadoop/HadoopTableOperations.java
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@@ -295,22 +295,19 @@ private void writeVersionHint(int versionToWrite) {
     FileSystem fs = getFileSystem(versionHintFile, conf);
 
     try {
-      if (fs.exists(versionHintFile)) {
-        Path tempVersionHintFile = metadataPath("version-hint.temp" );
-        writeFileToPath(fs, tempVersionHintFile);
-        fs.delete(versionHintFile, false);
-        fs.rename(tempVersionHintFile, versionHintFile);
-      } else {
-        writeFileToPath(fs, versionHintFile);
-      }
+      Path tempVersionHintFile = metadataPath(UUID.randomUUID().toString() + "-version-hint.temp");
+      writeVersionToPath(fs, tempVersionHintFile, versionToWrite);
+      fs.delete(versionHintFile, false);
+      fs.rename(tempVersionHintFile, versionHintFile);
     } catch (IOException e) {
       LOG.warn("Failed to update version hint", e);
     }
   }
 
-  private void writeFileToPath(FileSystem fs, Path path) throws IOException{
-    FSDataOutputStream out = fs.create(path, true /* overwrite */);
-    out.write(String.valueOf(path).getBytes(StandardCharsets.UTF_8));
+  private void writeVersionToPath(FileSystem fs, Path path, int versionToWrite) throws IOException {
+    try (FSDataOutputStream out = fs.create(path, true /* overwrite */)) {

Review comment:
       Thanks for the review. Done




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