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https://issues.apache.org/jira/browse/HBASE-12597?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14229105#comment-14229105
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Jurriaan Mous commented on HBASE-12597:
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Some followup on your Channel codec/compression suggestion. You mentioned it
would probably not work with SASL. But I think it would be trivial to implement
channel compression with a Netty stack even with SASL since
compression/encoding/decoding is handled within Channel handlers. I already
reimplemented the SASL handling to be a channel handler and you need to add the
compression to be after (or possibly before) the SASL handler for it to work
correctly. As long as the server implements it in the same way it would work.
It would indeed be a better way to compress/encode since it will compress all
transported bytes instead of only the cell blocks.
> Add RpcClient interface and enable changing of RpcClient implementation
> -----------------------------------------------------------------------
>
> Key: HBASE-12597
> URL: https://issues.apache.org/jira/browse/HBASE-12597
> Project: HBase
> Issue Type: Improvement
> Components: Client
> Reporter: Jurriaan Mous
>
> Currently HConnectionImplementation works with the included RpcClient which
> is a direct implementation and not defined by an interface.
> It would be great to be able to swap out the default RpcClient with another
> implementation which can also be controlled by the default
> HConnectionImplementation.
> Suggested changes:
> - Create a RpcClient interface which defines all the ways
> HConnectionImplementation interacts with an RPC client. Like getting a
> blocking protobuf service interface or closing the client.
> - Define which RpcClient implementation to construct by setting a
> configuration variable which defaults to the current RpcClient.
> - Possibly create an abstract RpcClient class to only load all the basic Rpc
> layer configurations to be used in an implementation.
> Why? It enables experimentation with RpcClients which could enable new
> features or could be more performant than the included client.
> I created a new RpcClient implementation based on Netty which can also be
> called asynchronously. It would be great to also be able to use this
> RpcClient in all the default ways and tests to see if there are any issues
> with it.
> https://github.com/jurmous/async-hbase-client/
> https://github.com/jurmous/async-hbase-client/blob/master/src/main/java/org/apache/hadoop/hbase/ipc/AsyncRpcClient.java
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