Tim Armstrong has submitted this change and it was merged. ( 
http://gerrit.cloudera.org:8080/15219 )

Change subject: IMPALA-9384: Improve Impala shell usability by enabling 
live_progress in interactive mode
......................................................................

IMPALA-9384: Improve Impala shell usability by enabling live_progress in 
interactive mode

In order to improve usability, this patch makes Impala shell show query
processing status while the query is running. The patch enables shell
option live_progress by default when a user launches impala shell in
the interactive mode. The patch also adds a new command line flag
"--disable_live_progress", which allows a user to disable live_progress
at runtime. In the interactive mode, a user can disable live_progress
by either using the command line flag or setting the option as False in
the config file. As for in the non-interactive mode (when the -q or -f
options are used), live reporting is not supported. Impala-shell will
disable live_progress if the mode is detected.

Testing:
- Added and updated tests in test_shell_interactive.py and 
test_shell_commandline.py
- Successfully ran all shell related tests

Change-Id: I3765b775f663fa227e59728acffe4d5ea9a5e2d3
Reviewed-on: http://gerrit.cloudera.org:8080/15219
Tested-by: Impala Public Jenkins <[email protected]>
Reviewed-by: Tim Armstrong <[email protected]>
---
M shell/impala_shell.py
M shell/impala_shell_config_defaults.py
M shell/option_parser.py
M tests/shell/test_shell_commandline.py
M tests/shell/test_shell_interactive.py
5 files changed, 47 insertions(+), 7 deletions(-)

Approvals:
  Impala Public Jenkins: Verified
  Tim Armstrong: Looks good to me, approved

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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: I3765b775f663fa227e59728acffe4d5ea9a5e2d3
Gerrit-Change-Number: 15219
Gerrit-PatchSet: 11
Gerrit-Owner: Alice Fan <[email protected]>
Gerrit-Reviewer: Alice Fan <[email protected]>
Gerrit-Reviewer: Andrew Sherman <[email protected]>
Gerrit-Reviewer: David Knupp <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Tim Armstrong <[email protected]>

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