[CASSANDRA-4467] insufficient space for compaction when upgrade compaction strategy from SizeTiered to Leveled

• Type: Improvement
• Status: Resolved
• Priority: Low
• Resolution: Later
• Labels: compaction

Environment

Ubuntu,Oracle Java 1.7,Cassandra 1.0.10

• Assignee: Unassigned
• Reporter: Cheng Zhang
• Created: 27/Jul/12 16:52
• Updated: 16/Apr/19 09:32
• Resolved: 18/Mar/16 14:20

Description

Cassandra has two data directories as follow:
cassandra-disk0 use about 500G, about 250G free space
cassandra-disk1 use about 500G, about 250G free space
The max data file is about 400G. When I upgrade from SizeTieredCompactionStrategy to LeveledCompactionStrategy, there is no space to do this, for the free space of every data directory is small than the largest data file. But the total free space is enough for compaction.