[KAFKA-6659] Improve error message if state store is not found

• Type: Improvement
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Component/s: streams
• Labels: beginner easy-fix newbie
• Assignee: Stuart Perks
• Reporter: Matthias J. Sax
• Reviewer: Matthias J. Sax
• Created: 14/Mar/18 20:13
• Updated: 25/Apr/18 09:42
• Resolved: 22/Mar/18 22:38

Description

If a processor tries to access a store but the store is not connected to the processor, Streams fails with

Caused by: org.apache.kafka.streams.errors.TopologyBuilderException: Invalid topology building: Processor KSTREAM-TRANSFORM-0000000036 has no access to StateStore questions-awaiting-answers-store

We should improve this error message and give a hint to the user how to fix the issues.

Issue Links

• links to: GitHub Pull Request #4732