[Impala-CR](cdh5-trunk) IMPALA-2198: Differentiate queries in exceptional states in web UI

["Thomas Tauber-Marshall (Code Review)" <ge...@cloudera.org>]

Thomas Tauber-Marshall has uploaded a new change for review.

  http://gerrit.cloudera.org:8080/2625

Change subject: IMPALA-2198: Differentiate queries in exceptional states in web UI
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IMPALA-2198: Differentiate queries in exceptional states in web UI

In order to make the query life-cycle clearer to users, added
a new section to the /queries webui page for queries that are
'finished', not actively running either due to an error or to
returning all of their results, but that have not been closed so
they are still using resources.

This section is marked 'waiting on client' to indicate that they
still need some user action (to close them) even though they are
not actively running. These queries previously would have appeared
in the 'in flight' list. There is a tooltip with a full explanation.

The 'in_flight_queries' json endpoint was left as is, so that CM
will continue to work as expected, and filtering queries for the
different lists is done in the html template.

Change-Id: I47d0b642ecb573fefbbf337b8c8f2c479b0d49b2
---
M be/src/service/impala-server-callbacks.cc
M be/src/service/impala-server.cc
M be/src/service/impala-server.h
M www/queries.tmpl
4 files changed, 68 insertions(+), 1 deletion(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala refs/changes/25/2625/1
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I47d0b642ecb573fefbbf337b8c8f2c479b0d49b2
Gerrit-PatchSet: 1
Gerrit-Project: Impala
Gerrit-Branch: cdh5-trunk
Gerrit-Owner: Thomas Tauber-Marshall <tm...@cloudera.com>