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From "Nick Dimiduk (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-13278) Toward a "thinner" client
Date Wed, 18 Mar 2015 23:52:38 GMT
Nick Dimiduk created HBASE-13278:
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             Summary: Toward a "thinner" client
                 Key: HBASE-13278
                 URL: https://issues.apache.org/jira/browse/HBASE-13278
             Project: HBase
          Issue Type: Brainstorming
          Components: Client, regionserver
            Reporter: Nick Dimiduk


Here's a strawman proposal I've been thinking about lately.

A stateless HTTP interface that runs on every RS and enables a client application to communicate
with the cluster using just libcurl. This interface provides an interface for admin commands
identical to existing REST gateway. Region location information is managed via http response
codes/redirects. Redirects bounce the client to the correct host for a given region when available.
The implementation doesn't suffer the "drinking through a straw" issues of our current gateway
interfaces. No longer is a client ZK connection required, everything can be found via this
API. Every machine in the cluster can run this service, so a client needs limited information
to be able to interact with the cluster.

A relatively performant client such as our Java client will require complexity for parallelism,
location caching, &c., but a relatively naive client can be stood up relatively simply.



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