ramkrishna.s.vasudevan commented on HBASE-16783:

Now this patch creates a BBPoolManager (any better name?) whose primary aim is 
to manage the buffers allocated from the pool and that are created out of pool. 
We could add APIs to this class which will be helping us in the BBPool that we 
wil be using in the write requests side.
There we need a ByteBuff based buffers so that that can be used with ByteBuff 
based CIS. So if we can use this manager all the code related to byte buffer 
management will be self contained. I had a patch for that but since write side 
is not done, will do it along with those sub tasks.

> Use ByteBufferPool for the header and message during Rpc response
> -----------------------------------------------------------------
>                 Key: HBASE-16783
>                 URL: https://issues.apache.org/jira/browse/HBASE-16783
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>            Priority: Minor
>         Attachments: HBASE-16783.patch, HBASE-16783_1.patch, 
> HBASE-16783_2.patch
> With ByteBufferPool in place we could avoid the byte[] creation in 
> RpcServer#createHeaderAndMessageBytes and try using the Buffer from the pool 
> rather than creating byte[] every time.

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