[CASSANDRA-6356] Proposal: Statistics.db (SSTableMetadata) format change

• Type: Improvement
• Status: Resolved
• Priority: Low
• Resolution: Fixed
• Fix Version/s: 2.1 beta1
• Assignee: Yuki Morishita
• Reporter: Yuki Morishita

Authors

Yuki Morishita

Reviewers

Tom Hobbs

• Created: 15/Nov/13 20:35
• Updated: 16/Apr/19 09:32
• Resolved: 13/Dec/13 22:57

Description

We started to distinguish what's loaded to heap, and what's not from Statistics.db. For now, ancestors are loaded as they needed.

Current serialization format is so adhoc that adding new metadata that are not permanently hold onto memory is somewhat difficult and messy. I propose to change serialization format so that a group of stats can be loaded as needed.

Issue Links

• blocks: CASSANDRA-5906 Avoid allocating over-large bloom filters