[HBASE-22520] Avoid possible NPE in HalfStoreFileReader seekBefore()

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha-1
• Fix Version/s: 3.0.0-alpha-1, 1.5.0, 2.3.0, 2.2.1, 2.1.6, 1.3.6, 1.4.11
• Hadoop Flags: Reviewed
• Assignee: Viraj Jasani
• Reporter: Viraj Jasani
• Created: 01/Jun/19 19:42
• Updated: 21/Jun/19 03:28
• Resolved: 06/Jun/19 22:47

Description

HalfStoreFileReader has firstKey defined as null. While retrieving first key, if the file is empty, no value will be provided to firstKey and hence during seekBefore, it might result into NPE.

Issue Links

• links to: GitHub Pull Request #281