[jira] [Created] (HDFS-10194) FSDataOutputStream.write() allocates new byte buffer on each operation

["Vladimir Rodionov (JIRA)" <ji...@apache.org>]

Vladimir Rodionov created HDFS-10194:
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             Summary: FSDataOutputStream.write() allocates new byte buffer on each operation
                 Key: HDFS-10194
                 URL: https://issues.apache.org/jira/browse/HDFS-10194
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: hdfs-client
    Affects Versions: 2.7.1
            Reporter: Vladimir Rodionov


This is the code:
{code}
 private DFSPacket createPacket(int packetSize, int chunksPerPkt, long offsetInBlock, long seqno, boolean lastPacketInBlock) throws InterruptedIOException {
     final byte[] buf;
     final int bufferSize = PacketHeader.PKT_MAX_HEADER_LEN +   packetSize;
 
     try {
       buf = byteArrayManager.newByteArray(bufferSize);
     } catch (InterruptedException ie) {
       final InterruptedIOException iioe = new InterruptedIOException(
           "seqno=" + seqno);
       iioe.initCause(ie);
       throw iioe;
     }
 
     return new DFSPacket(buf, chunksPerPkt, offsetInBlock, seqno,
                          getChecksumSize(), lastPacketInBlock);
}
{code}





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