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Subject [GitHub] igalshilman commented on a change in pull request #7313: [FLINK-11116][fs-connector] Removed randomness from HDFS and Local fs writers.
Date Tue, 18 Dec 2018 11:24:53 GMT
igalshilman commented on a change in pull request #7313: [FLINK-11116][fs-connector] Removed
randomness from HDFS and Local fs writers.
URL: https://github.com/apache/flink/pull/7313#discussion_r242461906
 
 

 ##########
 File path: flink-filesystems/flink-hadoop-fs/src/main/java/org/apache/flink/runtime/fs/hdfs/HadoopRecoverableWriter.java
 ##########
 @@ -60,6 +60,12 @@ public HadoopRecoverableWriter(org.apache.hadoop.fs.FileSystem fs) {
 	@Override
 	public RecoverableFsDataOutputStream open(Path filePath) throws IOException {
 		final org.apache.hadoop.fs.Path targetFile = HadoopFileSystem.toHadoopPath(filePath);
+
+		// the finalized part must not exist already
+		if (fs.exists(targetFile)) {
 
 Review comment:
   Can you please help me to understand:
   what is the assumption that the master had, that now is lost and requires this check? 

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