Since the exception is thrown from java.io.FileInputStream#open, it's
trying to append to a local file, not one in HDFS.
You're passing 'new File(...)' to appendTo, when you should probably
be passing 'new FsInput(...)'.
Doug
On Mon, Jul 8, 2013 at 9:29 AM, TrevniUser <dipti.de...@cerner.com> wrote:
> I was following this thread for a problem I am facing while using
> SortedKeyValueFiles.
>
> Below is the piece of code that tries to obtain the appropriate writer based
> on whether I am appending or creating a new file:
>
> OutputStream dataOutputStream;
> if (!fileSystem.exists(dataFilePath)) {
> dataOutputStream = fileSystem.create(dataFilePath);
> mDataFileWriter = new
> DataFileWriter<GenericRecord>(datumWriter).setSyncInterval(1 <<
> 20).create(mRecordSchema, dataOutputStream);
> } else {
> dataOutputStream = fileSystem.append(dataFilePath);
> mDataFileWriter = new
> DataFileWriter<GenericRecord>(datumWriter).setSyncInterval(1 <<
> 20).appendTo(new File(options.getPath() + DATA_FILENAME));
> }
>
> but it fails with this:
>
> java.io.FileNotFoundException: /CHANGELOG/data (No such file or directory)
> at java.io.FileInputStream.open(Native Method)
> at java.io.FileInputStream.<init>(FileInputStream.java:120)
> at
> org.apache.avro.file.SeekableFileInput.<init>(SeekableFileInput.java:29)
> at
> org.apache.avro.file.DataFileWriter.appendTo(DataFileWriter.java:149)
> at
> com.abc.kepler.datasink.hdfs.util.SortedKeyValueFile$Writer.<init>(SortedKeyValueFile.java:597)
> at
> com.abc.kepler.datasink.hdfs.util.ChangeLogUtil.getChangeLogWriter(ChangeLogUtil.java:84)
> at
> com.abc.kepler.datasink.hdfs.HDFSDataSinkChangeLog.append(HDFSDataSinkChangeLog.java:219)
> at
> com.abc.kepler.datasink.hdfs.HDFSDataSinkChangesTest.writeDataSingleEntityKeyDefaultLocation(HDFSDataSinkChangesTest.java:1036)
> at
> com.abc.kepler.datasink.hdfs.HDFSDataSinkChangesTest.javadocExampleTest(HDFSDataSinkChangesTest.java:645)
>
> So, is the avro writer it not able to locate the file on hdfs? Could you
> please share some pointers what could be leading to this?
>
>
>
> --
> View this message in context:
> http://apache-avro.679487.n3.nabble.com/Is-it-possible-to-append-to-an-already-existing-avro-file-tp3762049p4027785.html
> Sent from the Avro - Users mailing list archive at Nabble.com.
