[CASSANDRA-19503] (Accord) Cassandra bootstrap no longer using the range txn and instead uses the sync point empty txn for reads

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 5.1
• Component/s: Accord
• Bug Category: Correctness - Unrecoverable Corruption / Loss
• Severity: Critical
• Complexity: Normal
• Discovered By: Unit Test
• Platform: All
• Since Version: NA

Source Control Link

https://github.com/apache/cassandra/commit/63f39562ec2f1da182034c24eeb1e7bef29749ec

Test and Documentation Plan

existing tests

• Assignee: David Capwell
• Reporter: David Capwell

Authors

David Capwell

Reviewers

Blake Eggleston

• Created: 28/Mar/24 21:56
• Updated: 01/Apr/24 17:20
• Resolved: 01/Apr/24 17:20

Description

Ephemeral reads made a change to ReadData which caused Bootstrap to no longer use the range txn it generates and instead uses the empty txn from the sync point. This was not detected in Accord due to ListRead supporting ranges, and failed in Cassandra as we don’t support range reads.

Issue Links

• links to: GH: Accord trunk
• links to: GH: cep-15-accord