-Re: understanding the client code
Suraj Varma 2012-06-01, 22:44
The way thrift and avro fits in here is ...
Thrift Client (your code) -> (thrift on the wire) -> Thrift Server
(provided by HBase) -> (uses HTable) -> HBase Cluster.
Same with Avro.
So - use HTable if you want to interact with the cluster using a Java
API ... use the others if you want non-Java clients to access HBase.
On Tue, May 29, 2012 at 7:33 AM, S Ahmed <[EMAIL PROTECTED]> wrote:
> So how does thrift and avro fit into the picture? (I believe I saw
> references to that somewhere, are those alternate connection libs?)
> I know protobuf is just generating types for various languages...
> On Tue, May 29, 2012 at 10:26 AM, N Keywal <[EMAIL PROTECTED]> wrote:
>> If you're speaking about preparing the query it's in HTable and
>> If you're on the pure network level, then, on trunk, it's now done
>> with a third party called protobuf.
>> See the code from HConnectionManager#createCallable to see how it's used.
>> On Tue, May 29, 2012 at 4:15 PM, S Ahmed <[EMAIL PROTECTED]> wrote:
>> > I'm looking at the client code here:
>> > Is this the high level operations, and the actual sending of this data
>> > the network is done somewhere else?
>> > For example, during a PUT, you may want it to write to n nodes, where is
>> > the code that does that? And the actual network connection etc?