I have this problem with CDH 6.3.2, Nutch 1.x I use this command : /etc/nutch/runtime/deploy -i crawl 2 And the result is:   20/11/18 14:41:19 ERROR crawl.Generator: Generator: org.apache.hadoop.fs.UnsupportedFileSystemException: No FileSystem for scheme "hdfs" at org.apache.hadoop.fs.FileSystem.getFileSystemClass(FileSystem.java:3215) at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:3235) at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:123) at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:3286) at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:3254) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:478) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:226) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:462) at org.apache.hadoop.fs.Path.getFileSystem(Path.java:361) at org.apache.nutch.crawl.Generator.generate(Generator.java:758) at org.apache.nutch.crawl.Generator.run(Generator.java:1051) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76) at org.apache.nutch.crawl.Generator.main(Generator.java:998) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.hadoop.util.RunJar.run(RunJar.java:313) at org.apache.hadoop.util.RunJar.main(RunJar.java:227) ... View more