masteryhx commented on code in PR #24632: URL: https://github.com/apache/flink/pull/24632#discussion_r1570103838
########## flink-filesystems/flink-hadoop-fs/src/main/java/org/apache/flink/runtime/fs/hdfs/HadoopDataInputStream.java: ########## @@ -140,4 +144,43 @@ public void skipFully(long bytes) throws IOException { bytes -= fsDataInputStream.skip(bytes); } } + + @Override + public int read(ByteBuffer byteBuffer) throws IOException { + // Not all internal stream supports ByteBufferReadable + if (fsDataInputStream.hasCapability(StreamCapabilities.READBYTEBUFFER)) { + return fsDataInputStream.read(byteBuffer); + } else { + // Fallback to read byte then put Review Comment: Since position read may fallback to just use the method of position read with extra byte array in hadoop, I'd prefer to implement this logic without extra array overhead. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@flink.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org