[CASSANDRA-11550] Make the fanout size for LeveledCompactionStrategy to be configurable

• Type: New Feature
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 3.10, 4.0-alpha1, 4.0
• Component/s: Local/Compaction
• Labels: lcs
• Assignee: Dikang Gu
• Reporter: Dikang Gu

Authors

Dikang Gu

Reviewers

Marcus Eriksson

• Created: 12/Apr/16 06:14
• Updated: 15/May/20 08:06
• Resolved: 18/Oct/16 12:04

Description

Currently, the fanout size for LeveledCompactionStrategy is hard coded in the system (10). It would be useful to make the fanout size to be tunable, so that we can change it according to different use cases.

Further more, we can change the size dynamically.

Issue Links

• is duplicated by: CASSANDRA-7871 Reduce compaction IO in LCS
• is related to: CASSANDRA-9829 Dynamically adjust LCS level sizes

Sub-Tasks

• Add dtest for CASSANDRA-11550: Resolved