Hello,
That depends a bit on the used version.
For 1.3 and above it does not affect chaining; the maps will be chained
and setting the UIDs will work as if the maps weren't chained.
For 1.2, setting the UID on a chained operator is forbidden and will
fail with an exception.
On 28.08.2017 21:57, Emily McMahon wrote:
Does setting uid affect the default chaining (ie if I have two maps in
a row and set uid on both)?
This
<http://doc.flink-china.org/1.2.0/ops/upgrading.html#application-topology>
makes me think there's no effect
All operators that are part of a chain should be assigned an ID as
described in the Matching Operator State
<http://doc.flink-china.org/1.2.0/ops/upgrading.html#Matching%20Operator%20State>
section
above.
Thanks,
Emily
