[DRILL-5763] Fix NPE during MapRDBSubScan deserialization

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.12.0
• Fix Version/s: 1.12.0
• Component/s: Storage - MapRDB
• Labels: ready-to-commit
• Assignee: Arina Ielchiieva
• Reporter: Arina Ielchiieva
• Reviewer: Vitalii Diravka
• Created: 01/Sep/17 12:48
• Updated: 04/Sep/17 17:31
• Resolved: 04/Sep/17 17:31

Description

When querying mapr-db json table, if query has more than one major fragments, query execution fails since not all properties are defined MapRDBSubScan and thus deserialization fails.

This is the regression from DRILL-5714.

The root cause of the issue is that formatPluginConfig and storageConfig were not indicated as json properties and thus where not serialized. During deserialization they were set as null which caused NPE.

Issue Links

• relates to: DRILL-5714 Fix NPE when mapr-db plugin is used in table function
• links to: GitHub Pull Request #931