[FLINK-1285] Make execution mode configurable

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Component/s: Runtime / Task
• Assignee: Aljoscha Krettek
• Reporter: Ufuk Celebi
• Created: 26/Nov/14 12:04
• Updated: 08/Jan/15 11:05
• Resolved: 08/Jan/15 11:05

Description

As discussed in a PR: https://github.com/apache/incubator-flink/pull/227#discussion_r20788430.

The goal would be to make the execution mode configurable in order to easily configure closure cleaning, custom serializers, object reuse etc.

Configuration could be done either via 1) setters or 2) a configuration object.

I vote for 2).

Sub-Tasks

• Add a way to switch between mutable object safe mode and efficient object reuse mode: Resolved
• Add description of mutable object iterators (GroupReduce, CoGroup) to documentation: Resolved