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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CALCITE-1923) Investigate HTTP connection caching with SPNEGO auth
Date Fri, 04 Aug 2017 02:33:00 GMT
Josh Elser created CALCITE-1923:
-----------------------------------

             Summary: Investigate HTTP connection caching with SPNEGO auth
                 Key: CALCITE-1923
                 URL: https://issues.apache.org/jira/browse/CALCITE-1923
             Project: Calcite
          Issue Type: Task
          Components: avatica
            Reporter: Josh Elser
            Assignee: Josh Elser
            Priority: Minor


In the course of CALCITE-1922, I was doing a bunch of inspect of the raw HTTP requests using
tcpdump

{noformat}
tcpdump -vv port 8765 and '(tcp-syn|tcp-ack)!=0' -A
{noformat}

The strange thing is that for every request, the client appeared to be going through the handshake
each time (making two requests for every one). This seems really bad to me and I'd expect
to only see one made for the 2nd-nth request. Maybe we're doing something wrong with authentication
caching.



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