Steve Loughran created PARQUET-2151: ---------------------------------------
Summary: parquet-hadoop to drop Hadoop 1 input stream support Key: PARQUET-2151 URL: https://issues.apache.org/jira/browse/PARQUET-2151 Project: Parquet Issue Type: Improvement Components: parquet-mr Affects Versions: 1.13.0 Reporter: Steve Loughran Parquet uses reflection to load a hadoop2 input stream, falling back to a hadoop-1 compatible client if not found. All hadoop 2.0.2+ releases work with H2SeekableInputStream, so H1SeekableInputStream can be cut and the binding to H2SeekableInputStream reworked to avoid needing reflection. This would make it a lot easier to probe for/use the bytebuffer input, and line the code up for more recent hadoop releases. One thing H1SeekableInputStream does do is read into a temp array if the FSDataInputStream doesn't support , that is, doesn't implement ByteBufferReadable. but FSDataInputStream simply forwards that to the inner stream, if it too implements ByteBufferReadable. Filesystems which don't (the cloud stores) can't be read through H2SeekableInputStream.read(ByteBufferReadable). If this desired, H2SeekableInputStream will need to dynamically downgrade to DelegatingSeekableInputStream's base methods if a call to FSDataInputStream.read(ByteBuffer) fails. -- This message was sent by Atlassian Jira (v8.20.7#820007)