Github user tillrohrmann commented on a diff in the pull request:

    https://github.com/apache/flink/pull/3388#discussion_r103196755
  
    --- Diff: 
flink-yarn/src/main/java/org/apache/flink/yarn/AbstractYarnClusterDescriptor.java
 ---
    @@ -742,6 +755,24 @@ public FileVisitResult 
preVisitDirectory(java.nio.file.Path dir, BasicFileAttrib
                        }
                }
     
    +           for (URI originURI : archives) {
    +                   Path remoteParent = 
Utils.getRemoteResourceRoot(appId.toString(), new Path(originURI.getPath()), 
fs.getHomeDirectory());
    +                   String fragment = originURI.getFragment();
    +                   Path target = new Path(
    +                           FileUtils.localizeRemoteFiles(new 
org.apache.flink.core.fs.Path(remoteParent.toUri()), originURI).toUri());
    +                   URI targetURI = target.toUri();
    +                   if (targetURI.getFragment() == null && fragment != 
null) {
    +                           targetURI = new URI(target.toUri().toString() + 
"#" + fragment);
    +                   }
    +                   LocalResource archive = 
Records.newRecord(LocalResource.class);
    +                   FileStatus state = fs.getFileStatus(target);
    +                   Utils.registerLocalResource(targetURI, state.getLen(), 
state.getModificationTime(), archive);
    +                   localResources.put(fragment, archive);
    +                   paths.add(new Path(targetURI));
    +                   
classPathBuilder.append(fragment).append(File.pathSeparator);
    +                   envShipFileList.append(targetURI).append(",");
    +           }
    --- End diff --
    
    I've got the feeling that this code snippet contains a lot of path to URI 
and back to path conversions. Maybe we could streamline it a little bit to 
avoid unnecessary object instantiations.


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