Hello Lars Volker, Tim Armstrong, Impala Public Jenkins,

I'd like you to reexamine a change. Please visit

    http://gerrit.cloudera.org:8080/12130

to look at the new patch set (#2).

Change subject: IMPALA-7666: Adding an opaque client identifier to query 
options.
......................................................................

IMPALA-7666: Adding an opaque client identifier to query options.

We sometimes struggle to identify the client (e.g., a given version of a
JDBC driver, Tableau, Hue, etc.) for a given query. This commit adds a
User-Agent style header, called "Client Identifier", which clients can
set as a Query Option. Nothing is done with this header, but it's
written into logs and query profiles.

I have a protoype of serializing the name of the py.test being run into
this field, which is handy for figuring out where a query came from.

Change-Id: I0a7708492f05d33b2bc99fc3a03b461bbb6f3ea4
---
M be/src/service/query-options.cc
M be/src/service/query-options.h
M common/thrift/ImpalaInternalService.thrift
M common/thrift/ImpalaService.thrift
4 files changed, 14 insertions(+), 1 deletion(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/30/12130/2
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I0a7708492f05d33b2bc99fc3a03b461bbb6f3ea4
Gerrit-Change-Number: 12130
Gerrit-PatchSet: 2
Gerrit-Owner: Philip Zeyliger <phi...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Gerrit-Reviewer: Lars Volker <l...@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <tarmstr...@cloudera.com>

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