[jira] [Commented] (CALCITE-1117) Use commons httpclient instead of JDK http client

["Julian Hyde (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CALCITE-1117?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15176954#comment-15176954 ] 

Julian Hyde commented on CALCITE-1117:
--------------------------------------

Can we justify another dependency? I'd rather that core Avatica keeps its dependency list VERY short. 

> Use commons httpclient instead of JDK http client
> -------------------------------------------------
>
>                 Key: CALCITE-1117
>                 URL: https://issues.apache.org/jira/browse/CALCITE-1117
>             Project: Calcite
>          Issue Type: Sub-task
>          Components: avatica
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>             Fix For: next
>
>
> I've been stumbling around, trying to get a better understanding of how HttpURLConnection works (with http/1.1), applying it to some of the knowledge I have with the distributed key-value stores on Hadoop I'm familiar with.
> Along the way, I found lots of recommendations to move to Apache Commons HttpClient (http://hc.apache.org) with the broad suggestion that "it's just generally better". I mocked this up and was pleasantly surprised to find that this netted about a 20% improvement over the existing http client implementation (with a stubbed-out JDBC driver inside Avatica -- just measuring Avatica itself).
> Thankfully, we have an interface for the http client, so it should be easy to add a new implementation with a factory to do some client-side configuration.



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