ExecutionEnvironment.readTextFile will read the file in parallel.
On 28.05.2016 09:59, David Olsen wrote:
After searching on the internet I still do not find the answer (with
key word like 'apache flink parallel read text') I am looking for. So
asking here before jumping to write code ...
My problem is I want to a read text file or split text files (from
local file system). Therefore I want to parallel read those files and
process them accordingly.
From what I discover so far:
- Use ExecutionEnvironment.readTextFile but this only serves with 1
thread(?) (meaning reading the file(s) from the beginning to the end)
- Use streaming env to addSource[1] but that seems to me I need to
implement my own source with RichParallelSourceFunction.
Is there any classes or impl that already can read text in parallel?
Thanks
[1].
http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Reading-separate-files-in-parallel-tasks-as-input-td1623.html
