[Impala-ASF-CR] IMPALA-2550: Switch to per-query exec rpc

["Tianyi Wang (Code Review)" <ge...@cloudera.org>]

Tianyi Wang has posted comments on this change. ( http://gerrit.cloudera.org:8080/6535 )

Change subject: IMPALA-2550: Switch to per-query exec rpc
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Patch Set 15:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/6535/15/be/src/runtime/coordinator-backend-state.cc
File be/src/runtime/coordinator-backend-state.cc:

http://gerrit.cloudera.org:8080/#/c/6535/15/be/src/runtime/coordinator-backend-state.cc@363
PS15, Line 363:   local_params.__set_bloom_filter(rpc_params->bloom_filter);
Sorry for commenting on an old CR. I'm reading this part of code and have several questions:
1. Why does rpc_params need to be a shared_ptr? I think it is only referenced within the scope of this function.
2. Why is a copy made here?
2. Why is __set_bloom_filter called, given that local_params is copy-constructed from rpc_params?



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I20769e420711737b6b385c744cef4851cee3facd
Gerrit-Change-Number: 6535
Gerrit-PatchSet: 15
Gerrit-Owner: Marcel Kornacker <ma...@gmail.com>
Gerrit-Reviewer: Dan Hecht <dh...@cloudera.com>
Gerrit-Reviewer: Henry Robinson <he...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins
Gerrit-Reviewer: Marcel Kornacker <ma...@gmail.com>
Gerrit-Reviewer: Michael Ho <kw...@cloudera.com>
Gerrit-Reviewer: Tianyi Wang <tw...@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <ta...@cloudera.com>
Gerrit-Comment-Date: Mon, 25 Sep 2017 22:33:49 +0000
Gerrit-HasComments: Yes