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https://issues.apache.org/jira/browse/HDDS-1259?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16792767#comment-16792767
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Xiaoyu Yao commented on HDDS-1259:
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Sure, thanks for taking care of this.
> OzoneFS classpath separation is broken by the token validation
> --------------------------------------------------------------
>
> Key: HDDS-1259
> URL: https://issues.apache.org/jira/browse/HDDS-1259
> Project: Hadoop Distributed Data Store
> Issue Type: Improvement
> Reporter: Elek, Marton
> Assignee: Elek, Marton
> Priority: Blocker
> Labels: pull-request-available
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> 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.
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