1. I don’t think so
2. Arrow is for in-memory columnar execution. While cache is for in-memory
columnar storage
> On May 20, 2016, at 10:16, Todd <bit1...@163.com> wrote:
>
> From the official site http://arrow.apache.org/, Apache Arrow is used for
> Columnar In-Memory storage. I have two quick questions:
> 1. Does spark support Apache Arrow?
> 2. When dataframe is cached in memory, the data are saved in columnar
> in-memory style. What is the relationship between this feature and Apache
> Arrow,that is,
> when the data is in Apache Arrow format，does spark still need the effort to
> cache the dataframe in columnar in-memory?
