[CASSANDRA-8709] Convert SequentialWriter from using RandomAccessFile to nio channel

• Type: Improvement
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 2.2.0 beta 1
• Component/s: Legacy/Local Write-Read Paths
• Labels: Windows
• Assignee: Joshua McKenzie
• Reporter: Joshua McKenzie

Authors

Joshua McKenzie

Reviewers

T Jake Luciani

• Created: 30/Jan/15 17:58
• Updated: 16/Apr/19 09:31
• Resolved: 11/Mar/15 19:54

Description

For non-mmap'ed I/O on Windows, using nio channels will give us substantially more flexibility w/regards to renaming and moving files around while writing them. This change in conjunction with CASSANDRA-4050 should allow us to remove the Windows bypass code in SSTableRewriter for non-memory-mapped I/O.

In general, migrating from instances of RandomAccessFile to nio channels will help make Windows and linux behavior more consistent.

Issue Links

• is duplicated by: CASSANDRA-4338 Experiment with direct buffer in SequentialWriter
• is related to: CASSANDRA-9096 Improve ByteBuffer compression interface