Tim Armstrong has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/12129 )

Change subject: IMPALA-6664: Tag log statements with fragment ids.
......................................................................


Patch Set 1:

(5 comments)

http://gerrit.cloudera.org:8080/#/c/12129/1//COMMIT_MSG
Commit Message:

http://gerrit.cloudera.org:8080/#/c/12129/1//COMMIT_MSG@31
PS1, Line 31: TODO: there's no test here yet...
I'll wait for this before +2ing.


http://gerrit.cloudera.org:8080/#/c/12129/1/be/src/common/logging.cc
File be/src/common/logging.cc:

http://gerrit.cloudera.org:8080/#/c/12129/1/be/src/common/logging.cc@55
PS1, Line 55: std::
std:: not needed


http://gerrit.cloudera.org:8080/#/c/12129/1/be/src/common/logging.cc@59
PS1, Line 59:     if (changed != nullptr) {
It seems reasonable to assume that 'changed' is non-NULL.


http://gerrit.cloudera.org:8080/#/c/12129/1/be/src/common/logging.cc@65
PS1, Line 65: // Manipulates log messages by:
The API chosen is a little unfortunate since it requires reallocating 's' to 
prepend anything. Looking at the glog patch, it wouldn't be that hard to 
provide an alternative way to return a prefix.

I guess the overhead probably isn't enough to worry about, and it looks like 
the inefficiencies in the glog patch haven't shown up in any profiling, it just 
offends my sensibilities a bit :).


http://gerrit.cloudera.org:8080/#/c/12129/1/be/src/common/logging.cc@68
PS1, Line 68: std:
same here



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I6634ef9d1a7346339f24f2d40a7a3aa36a535da8
Gerrit-Change-Number: 12129
Gerrit-PatchSet: 1
Gerrit-Owner: Philip Zeyliger <phi...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <tarmstr...@cloudera.com>
Gerrit-Reviewer: Zoltan Borok-Nagy <borokna...@cloudera.com>
Gerrit-Reviewer: Zoram Thanga <zo...@cloudera.com>
Gerrit-Comment-Date: Thu, 03 Jan 2019 17:56:51 +0000
Gerrit-HasComments: Yes

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