[CASSANDRA-5966] Average name query performance much worse for wide rows

• Type: Improvement
• Status: Resolved
• Priority: Low
• Resolution: Not A Problem
• Assignee: Unassigned
• Reporter: Rick Branson

Reviewers

Jonathan Ellis

• Created: 01/Sep/13 00:12
• Updated: 16/Apr/19 09:32
• Resolved: 11/Mar/16 17:25

Description

The average performance for by-name queries degrades heavily on wide rows. This is because in the wide row case SSTableNamesIterator deserializes every column in the entire row chunk (64KB by default), where-as in the narrow row case, it stops deserializing as soon as it's found the columns it's looking for.

Issue Links

• is superceded by: CASSANDRA-8099 Refactor and modernize the storage engine