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:
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@@ -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.
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