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From Aljoscha Krettek <aljos...@apache.org>
Subject Re: Flink join with external source
Date Sat, 05 Sep 2015 16:40:41 GMT
Hi Jerry,
it should be possible to just use the Redis API inside a Flink operator,
for example a map or flatMap. You can use RichFunctions (
to setup the connection and close it after computation finishes. If you
need exactly-once behaviour you need to handle that yourself, however, in
the database.

I hope that helps but please let us know if you need more information.


On Fri, 4 Sep 2015 at 17:49 Jerry Peng <jerry.boyang.peng@gmail.com> wrote:

> Hello,
> Does a flink currently support operators to use redis?  If I using the
> streaming api in Flink and I need to look up something in a redis database
> during the processing of the stream how can I do that?

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