[CASSANDRA-19857] CommandsForRanges does not support slice which cause over returned data being sent

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: NA
• Component/s: Accord
• Bug Category: Correctness - Unrecoverable Corruption / Loss
• Severity: Critical
• Complexity: Low Hanging Fruit
• Discovered By: Fuzz Test
• Platform: All
• Since Version: NA

Source Control Link

https://github.com/apache/cassandra/commit/8c8d271bb97926bdae33f4e0ed6af9690d0ce0d1

Test and Documentation Plan

more tests

• Assignee: David Capwell
• Reporter: David Capwell

Authors

David Capwell

Reviewers

Alex Petrov

• Created: 22/Aug/24 20:54
• Updated: 23/Aug/24 20:20
• Resolved: 23/Aug/24 20:20

Description

This is split from CASSANDRA-19769

CommandsForRanges returns the data for the whole node but is processed per shard (which has a subset of data). Normally we use “.slice” to shrink the results to match the shard, but this is missing in CommandsForRanges, which cause it to return txn and ranges not present for the shard

Issue Links

• relates to: CASSANDRA-19769 CEP-15: (Accord) sequence EpochReady.coordinating to allow syncComplete to be learned from newer epochs
• links to: GitHub Pull Request #3492