Brahma Reddy Battula created HDFS-3361:
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Summary: read(long position, byte[] buffer, int offset, int
length) is not behaving as expected
Key: HDFS-3361
URL: https://issues.apache.org/jira/browse/HDFS-3361
Project: Hadoop HDFS
Issue Type: Bug
Components: hdfs client
Affects Versions: 2.0.0, 3.0.0
Reporter: Brahma Reddy Battula
Fix For: 2.0.0
Start NN and DN
write a file with size 1024
now try to read file using following api
fsin.read(10, writeBuff, 10, fsin.available())
Here it's returning zero..But actual file length is 1024
*Java Docs provided*
{code}
/**
* Read bytes from the given position in the stream to the given buffer.
*
* @param position position in the input stream to seek
* @param buffer buffer into which data is read
* @param offset offset into the buffer in which data is written
* @param length maximum number of bytes to read
* @return total number of bytes read into the buffer, or <code>-1</code>
* if there is no more data because the end of the stream has been
* reached
*/
public int read(long position, byte[] buffer, int offset, int length)
throws IOException {
return ((PositionedReadable)in).read(position, buffer, offset, length);
}
{code}
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