One reason I'd personally like to see another (binary) wire
protocol for communicating between the clients, master, and
regionservers is HBASE-1015:
https://issues.apache.org/jira/browse/HBASE-1015
Maybe I'll have some time to work on this soon in 2009.
- Andy
> From: Michael Dagaev <[email protected]>
> Subject: Re: HTable Pooling Results
> To: [email protected]
> Date: Tuesday, December 16, 2008, 1:19 PM
> When I started testing it was pretty obvious that the
> synchronized commit of Htable actually serializes access
> to the table, so pooling was a trivial solution to work
> around the problem. It is good enough, however, I hope
> that the RPC limitation will be fixed.
>
> I believe this is not a big deal from the technical
> perspective but I can understand why it is not trivial.
> It should be fixed by Hadoop. Hadoop do not want to fix
> it, probably. Therefore, Hbase should consider an
> alternative for Hadoop RPC and this is a big deal.
>
> M.