[HBASE-21916] Abstract an ByteBuffAllocator to allocate/free ByteBuffer in ByteBufferPool

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0-alpha-1, 2.3.0
• Hadoop Flags: Reviewed
• Assignee: Zheng Hu
• Reporter: Zheng Hu
• Created: 16/Feb/19 09:14
• Updated: 01/Jul/22 21:44
• Resolved: 01/Mar/19 03:28

Description

Now our read/write path allocate ByteBuffer from the ByteBufferPool, but we need consider the minSizeForReservoirUse for better utilization, those allocate/free api are some static methods, not so good to use.
For HBASE-21879, we need an universal ByteBuffer allocator to manage all the ByteBuffers through the entire read path, so create this issue.

Will upload a patch to abstract an ByteBufAllocator.

Issue Links

• links to: Review board