klion26 commented on a change in pull request #12143:
URL: https://github.com/apache/flink/pull/12143#discussion_r434449857



##########
File path: 
flink-yarn/src/main/java/org/apache/flink/yarn/YarnClusterDescriptor.java
##########
@@ -733,67 +737,49 @@ private ApplicationReport startAppMaster(
                                                        1));
                }
 
-               final Set<File> userJarFiles = new HashSet<>();
+               final Set<Path> userJarFiles = new HashSet<>();
                if (jobGraph != null) {
-                       
userJarFiles.addAll(jobGraph.getUserJars().stream().map(f -> 
f.toUri()).map(File::new).collect(Collectors.toSet()));
+                       
userJarFiles.addAll(jobGraph.getUserJars().stream().map(f -> 
f.toUri()).map(Path::new).collect(Collectors.toSet()));
                }
 
                final List<URI> jarUrls = 
ConfigUtils.decodeListFromConfig(configuration, PipelineOptions.JARS, 
URI::create);
                if (jarUrls != null && 
YarnApplicationClusterEntryPoint.class.getName().equals(yarnClusterEntrypoint)) 
{
-                       
userJarFiles.addAll(jarUrls.stream().map(File::new).collect(Collectors.toSet()));
+                       
userJarFiles.addAll(jarUrls.stream().map(Path::new).collect(Collectors.toSet()));
                }
 
-               int yarnFileReplication = 
yarnConfiguration.getInt(DFSConfigKeys.DFS_REPLICATION_KEY, 
DFSConfigKeys.DFS_REPLICATION_DEFAULT);
-               int fileReplication = 
configuration.getInteger(YarnConfigOptions.FILE_REPLICATION);
-               fileReplication = fileReplication > 0 ? fileReplication : 
yarnFileReplication;
-
                // only for per job mode
                if (jobGraph != null) {
                        for (Map.Entry<String, 
DistributedCache.DistributedCacheEntry> entry : 
jobGraph.getUserArtifacts().entrySet()) {
-                               org.apache.flink.core.fs.Path path = new 
org.apache.flink.core.fs.Path(entry.getValue().filePath);
                                // only upload local files
-                               if (!path.getFileSystem().isDistributedFS()) {
-                                       Path localPath = new 
Path(path.getPath());
+                               if 
(Utils.isRemotePath(entry.getValue().filePath)) {

Review comment:
       Here the comment said that `only upload local files`, but the logic in 
`if` will be true only for `RemotePath`, so maybe this is a bug? @wangyang0918 




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