[FLINK-996] NullPointerException while translating union node

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.6-incubating
• Assignee: Till Rohrmann
• Reporter: Till Rohrmann
• Created: 02/Jul/14 09:39
• Updated: 03/Jul/14 12:51
• Resolved: 03/Jul/14 12:51

Description

The NepheleJobGraphGenerator throws a NullPointerException when translating a binary union operator. The BinaryUnionPlanNode is not replaced by a NAryUnionPlanNode and thus is still treated as a DualInputVertex. Accessing the driver code of the BinaryUnionPlanNode causes then the NullPointerException.