Soumitra Sulav created HDDS-5907:
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             Summary: [ozone fs api] appendToFile, truncate not implemented
                 Key: HDDS-5907
                 URL: https://issues.apache.org/jira/browse/HDDS-5907
             Project: Apache Ozone
          Issue Type: Improvement
          Components: Ozone CLI
            Reporter: Soumitra Sulav


*FS API:* appendToFile, truncate is not supported and throws a Fatal internal 
error.

Steps to reproduce :

{code:java}
# ozone fs -mkdir -p ofs://ozone1/vol/buck/dir
# ozone fs -touchz ofs://ozone1/vol/buck/dir/key
# ozone fs -appendToFile anaconda-ks.cfg ofs://ozone1/vol/buck/dir/key
{code}

Error stacktrace :

{code:java}
-appendToFile: Fatal internal error
java.lang.UnsupportedOperationException: append() Not implemented by the 
RootedOzoneFileSystem FileSystem implementation
        at 
org.apache.hadoop.fs.ozone.BasicRootedOzoneFileSystem.append(BasicRootedOzoneFileSystem.java:246)
        at org.apache.hadoop.fs.FileSystem.append(FileSystem.java:1437)
        at 
org.apache.hadoop.fs.shell.CopyCommands$AppendToFile.processArguments(CopyCommands.java:438)
        at 
org.apache.hadoop.fs.shell.FsCommand.processRawArguments(FsCommand.java:120)
        at org.apache.hadoop.fs.shell.Command.run(Command.java:177)
        at org.apache.hadoop.fs.FsShell.run(FsShell.java:328)
        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.ozone.OzoneFsShell.main(OzoneFsShell.java:83)
{code}




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