[PARQUET-978] [C++] Minimizing footer reads for small(ish) metadata

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: cpp-1.2.0
• Component/s: parquet-cpp
• Assignee: Deepak Majeti
• Reporter: Wes McKinney
• Created: 10/May/17 17:40
• Updated: 27/May/17 14:32
• Resolved: 27/May/17 14:32

Description

Other Parquet implementations will do a read from the end of the file (e.g. 64K) in case a single read suffices to obtain the metadata, metadata size, and magic end bytes. We don't do this yet: https://github.com/apache/parquet-cpp/blob/master/src/parquet/file/reader-internal.cc#L251