[Impala-CR](cdh5-2.2.0_5.4.x) IMPALA-3095: Add configurable whitelist of authorized internal principals

["Anuj Phadke (Code Review)" <ge...@cloudera.org>]

Anuj Phadke has uploaded a new change for review.

  http://gerrit.cloudera.org:8080/2360

Change subject: IMPALA-3095: Add configurable whitelist of authorized internal principals
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IMPALA-3095: Add configurable whitelist of authorized internal principals

Although Impala now restricts the set of users authorized to access
internal APIs to the configured 'be' principal, there are a small number
of uses for allowing other named users to access the same APIs.

This patch adds a configurable whitelist of authorized users as a
command-line flag. By default, it is set to the HDFS user.

Change-Id: If828e86c99c3c398319953b1d3b33d5e3af200da
---
M be/src/rpc/authentication-test.cc
M be/src/rpc/authentication.cc
2 files changed, 88 insertions(+), 12 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala refs/changes/60/2360/1
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Gerrit-MessageType: newchange
Gerrit-Change-Id: If828e86c99c3c398319953b1d3b33d5e3af200da
Gerrit-PatchSet: 1
Gerrit-Project: Impala
Gerrit-Branch: cdh5-2.2.0_5.4.x
Gerrit-Owner: Anuj Phadke <ap...@cloudera.com>
Gerrit-Reviewer: Henry Robinson <he...@cloudera.com>