[HBASE-21020] Determine WAL API changes for replication

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: HBASE-20952
• Component/s: wal
• Hadoop Flags: Reviewed
• Assignee: Ankit Singhal
• Reporter: Josh Elser
• Created: 07/Aug/18 12:18
• Updated: 22/Jan/19 15:47
• Resolved: 22/Jan/19 15:47

Description

Spin-off of HBASE-20952.

Ankit has started working on what he thinks a WAL API specifically for Replication should look like. In his own words:

At a high level, it looks,

• Need to abstract WAL name under WalInfo instead of Paths

• Abstract the WalEntryStream for FileSystem and Streaming system.

• Build WalStorage APIs to abstract operation on Wal.
• Provide the implementation of all above through corresponding WalProvider

Issue Links

• blocks: HBASE-20957 Switch replication over to use the new WAL API
• Is contained by: HBASE-20952 Re-visit the WAL API