[HBASE-12289] Avoid onheap buffer copying at RPCServer#serResponse

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Later
• Component/s: regionserver, Scanners
• Assignee: Unassigned
• Reporter: Anoop Sam John
• Created: 19/Oct/14 13:55
• Updated: 17/Jun/22 05:13
• Resolved: 15/Oct/15 06:00

Description

We would like to see DBB end-to-end in read path until we write to socket. IPCUtil#buildCellBlock doing a buffer creation and then write the data at once. This jira aims at checking how we can avoid this also.