[Impala-ASF-CR] IMPALA-9540 Test that Impala Shell no longer sends duplicate "Host" headers in http mode.

["Andrew Sherman (Code Review)" <ge...@cloudera.org>]

Andrew Sherman has uploaded a new patch set (#2). ( http://gerrit.cloudera.org:8080/15752 )

Change subject: IMPALA-9540 Test that Impala Shell no longer sends duplicate "Host" headers in http mode.
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IMPALA-9540 Test that Impala Shell no longer sends duplicate "Host" headers in http mode.

Many http servers will not accept an http request that has multiple
copies of the "Host" header. A recent toolchain change patches
Thrift so that will not send the extraneous header (in THttpClient).
This change tests that the duplicate headers are not sent,

TESTING:
  Ran all end-to-end tests.
  Rewrote an existing Shell test to check that only one "Host" header
  is sent.

Change-Id: I82996015d0205923e854dac8bb88604778684c46
---
M tests/shell/test_shell_interactive.py
M tests/shell/util.py
2 files changed, 53 insertions(+), 34 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/52/15752/2
-- 
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I82996015d0205923e854dac8bb88604778684c46
Gerrit-Change-Number: 15752
Gerrit-PatchSet: 2
Gerrit-Owner: Andrew Sherman <as...@cloudera.com>
Gerrit-Reviewer: Andrew Sherman <as...@cloudera.com>
Gerrit-Reviewer: David Knupp <dk...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins <im...@cloudera.com>