[CASSANDRA-17048] Replace sequential sstable generation identifier with UUID v1

• Type: Improvement
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 4.1-alpha1, 4.1
• Component/s: Local/SSTable
• Change Category: Performance
• Complexity: Normal
• Platform: All

Source Control Link

https://github.com/apache/cassandra/commit/0040fea3797ea3e497691e9d1e2660711c60ac4d

Test and Documentation Plan

Run regression tests

• Assignee: Jacek Lewandowski
• Reporter: Jacek Lewandowski

Authors

Jacek Lewandowski

Reviewers

Andres de la Peña, Benjamin Lerer

• Created: 19/Oct/21 08:39
• Updated: 27/May/22 19:25
• Resolved: 23/Mar/22 11:57

Description

Replace the current sequential sstable generation identifier with ULID based.

ULID is better because we do not need to scan the existing files to pick the starting number as well as we can generate globally unique identifiers.

Issue Links

• causes: CASSANDRA-17482 Intermittent failure on org.apache.cassandra.io.sstable.LegacySSTableTest.testStreamLegacyCqlTables
• relates to: CASSANDRA-17585 Save sstable id as string in activity table
• links to: PR trunk