[CASSANDRA-7443] Extend Descriptor to include a format value and refactor reader/writer apis

• Type: Improvement
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 2.2.0 beta 1
• Component/s: Legacy/Local Write-Read Paths
• Assignee: T Jake Luciani
• Reporter: T Jake Luciani

Authors

T Jake Luciani

Reviewers

Marcus Eriksson

• Created: 24/Jun/14 20:47
• Updated: 16/Apr/19 09:31
• Resolved: 23/Oct/14 15:12

Description

As part of a wider effort to improve the performance of our storage engine we will need to support basic pluggability of the SSTable reader/writer. We primarily need this to support the current SSTable format and new SSTable format in the same version. This will also let us encapsulate the changes in a single layer vs forcing the whole engine to change at once.

We previously discussed how to accomplish this in CASSANDRA-3067

Issue Links

• is related to: CASSANDRA-7447 New sstable format with support for columnar layout
• relates to: CASSANDRA-7622 Implement virtual tables