[FLINK-6742] Improve error message when savepoint migration fails due to task removal

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.3.0
• Fix Version/s: 1.3.2, 1.4.0
• Component/s: Runtime / State Backends
• Labels: flink-rel-1.3.1-blockers
• Assignee: Chesnay Schepler
• Reporter: Gyula Fora
• Created: 27/May/17 15:58
• Updated: 01/Jul/17 10:09
• Resolved: 01/Jul/17 10:09

Description

Caused by: java.lang.NullPointerException
at org.apache.flink.runtime.checkpoint.savepoint.SavepointV2.convertToOperatorStateSavepointV2(SavepointV2.java:171)
at org.apache.flink.runtime.checkpoint.savepoint.SavepointLoader.loadAndValidateSavepoint(SavepointLoader.java:75)
at org.apache.flink.runtime.checkpoint.CheckpointCoordinator.restoreSavepoint(CheckpointCoordinator.java:1090)

Issue Links

• links to: GitHub Pull Request #4083
• links to: GitHub Pull Request #4185