[CASSANDRA-13525] ReverseIndexedReader may drop rows during 2.1 to 3.0 upgrade

• Type: Bug
• Status: Resolved
• Priority: Urgent
• Resolution: Fixed
• Fix Version/s: 3.0.14, 3.11.0
• Component/s: Legacy/Local Write-Read Paths
• Severity: Critical
• Assignee: Sam Tunnicliffe
• Reporter: Sam Tunnicliffe

Authors

Sam Tunnicliffe

• Created: 11/May/17 11:27
• Updated: 16/Apr/19 09:30
• Resolved: 24/May/17 18:15

Description

During an upgrade from 2.1 (or 2.2) to 3.0 (or 3.x) queries which perform reverse iteration may silently drop rows from their results. This can happen before sstableupgrade is run and when the sstables are indexed.