[HBASE-2498] Read multiple HFile blocks from HDFS in a single call when possible

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Incomplete
• Component/s: io, Performance, regionserver
• Labels: moved_from_0_20_5
• Assignee: Unassigned
• Reporter: Jonathan Gray
• Created: 28/Apr/10 20:30
• Updated: 11/Jun/22 23:32
• Resolved: 24/Dec/14 19:44

Description

There are a number of circumstances where we know that we will need to read through many consecutive blocks. This is an issue to explore when we could do this and implement it where it makes sense.

Issue Links

• incorporates: HBASE-2362 Improve gets/scans when all columns of a key is requested.