Hi,

Right now it is a Kafka source, but I had the same issue when reading data
from local FS.

It looks like a common problem for many (all?) sources.
When incoming data is very small (paths to large archives) but each entry
requires a significant time to process (unpack, parse, etc.) Flink detects
the back pressure with delay and too much data becomes part of the first
transaction.



-- 
Best regards,
Andrei Shumanski



On Fri, May 18, 2018 at 11:44 AM, makeyang <riverbuild...@hotmail.com>
wrote:

> Andrei Shumanski:
>     which source are u using?
>
>
>
> --
> Sent from: http://apache-flink-user-mailing-list-archive.2336050.
> n4.nabble.com/
>

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