elek opened a new pull request #604: HDDS-1259. OzoneFS classpath separation is broken by the
token validation
URL: https://github.com/apache/hadoop/pull/604
hadoop-ozone-filesystem-lib-legacy-0.4.0-SNAPSHOT.jar can't work any more together with
older hadoop version, after the change of HDDS-1183.
{code}
2019-03-13 13:48:51 WARN FileSystem:3170 - Cannot load filesystem: java.util.ServiceConfigurationError:
org.apache.hadoop.fs.FileSystem: Provider org.apache.hadoop.fs.ozone.OzoneFileSystem could
not be instantiated
2019-03-13 13:48:51 WARN FileSystem:3174 - java.lang.NoClassDefFoundError: org/apache/hadoop/hdds/conf/OzoneConfiguration
2019-03-13 13:48:51 WARN FileSystem:3174 - java.lang.ClassNotFoundException: org.apache.hadoop.hdds.conf.OzoneConfiguration
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/hadoop/hdds/conf/OzoneConfiguration
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)
at org.apache.hadoop.conf.Configuration.getClassByNameOrNull(Configuration.java:2332)
at org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:2297)
at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2393)
at org.apache.hadoop.fs.FileSystem.getFileSystemClass(FileSystem.java:3208)
at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:3240)
at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:121)
at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:3291)
at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:3259)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:470)
at org.apache.hadoop.fs.Path.getFileSystem(Path.java:356)
at org.apache.hadoop.fs.shell.PathData.expandAsGlob(PathData.java:325)
at org.apache.hadoop.fs.shell.Command.expandArgument(Command.java:245)
at org.apache.hadoop.fs.shell.Command.expandArguments(Command.java:228)
at org.apache.hadoop.fs.shell.FsCommand.processRawArguments(FsCommand.java:103)
at org.apache.hadoop.fs.shell.Command.run(Command.java:175)
at org.apache.hadoop.fs.FsShell.run(FsShell.java:315)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:90)
at org.apache.hadoop.fs.FsShell.main(FsShell.java:378)
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.hdds.conf.OzoneConfiguration
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 21 more
{code}
And Ozone file system current jar is compatible only with hadoop 3.2 after the latest HA
change. It means that ozonefs is broken everywhere where the hadoop version is older than
3.2.
See: https://issues.apache.org/jira/browse/HDDS-1259
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