Oleg Novoyavchev created FLINK-24127:
----------------------------------------
Summary: Asynchronous I/O documentation should be updated
Key: FLINK-24127
URL: https://issues.apache.org/jira/browse/FLINK-24127
Project: Flink
Issue Type: Bug
Components: API / DataStream, Documentation
Affects Versions: 1.11.0
Reporter: Oleg Novoyavchev
As the restriction that the AsyncWaitOperator must be at a head of a chain was
removed in Flink 1.11, the Acync I/O documentation should the updated in the
part of conclusive caveat. The following paragraph perhaps should be removed or
actualised:
"*The operator for AsyncFunction (AsyncWaitOperator) must currently be at the
head of operator chains for consistency reasons*
For the reasons given in issue {{FLINK-13063}}, we currently must break
operator chains for the {{AsyncWaitOperator}} to prevent potential consistency
problems. This is a change to the previous behavior that supported chaining.
User that require the old behavior and accept potential violations of the
consistency guarantees can instantiate and add the {{AsyncWaitOperator}}
manually to the job graph and set the chaining strategy back to chaining via
{{AsyncWaitOperator#setChainingStrategy(ChainingStrategy.ALWAYS)}}."
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
