[HBASE-12994] Improve network utilization for scanning RPC requests by preloading the next set of results on the server

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Incomplete
• Component/s: Client, Performance
• Assignee: Unassigned
• Reporter: Jonathan Lawlor
• Created: 09/Feb/15 17:53
• Updated: 23/Jun/22 18:46
• Resolved: 11/Jun/22 19:27

Description

As lhofhansl has called out in HBASE-11544, RPC is inefficient when scanning. The way it currently works is the client requests a buffer worth of results and works through that buffer. Once that buffer of results is exhausted, the client realizes it has run out of results and then requests the next buffer. This could be improved by beginning to load the next buffer on the server while the client is working through the current buffer of results.

Issue Links

• relates to: HBASE-13071 Hbase Streaming Scan Feature