[SPARK-4071] Unroll fails silently if BlockManager size is small

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.1.0
• Fix Version/s: 1.2.0
• Component/s: Spark Core
• Target Version/s: 1.2.0
• Assignee: Andrew Or
• Reporter: Andrew Or
• Created: 23/Oct/14 23:43
• Updated: 26/Oct/14 03:08
• Resolved: 26/Oct/14 03:08

Description

In tests, we may want to have BlockManagers of size < 1MB (spark.storage.unrollMemoryThreshold). However, these BlockManagers are useless because we can't unroll anything in them ever. At the very least we need to log a warning.

Issue Links

• links to: [Github] Pull Request #2917 (andrewor14)