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From "Thomas Tauber-Marshall (Code Review)" <>
Subject [Impala-ASF-CR] IMPALA-5167: Reduce the number of Kudu clients created
Date Tue, 09 May 2017 16:39:05 GMT
Thomas Tauber-Marshall has posted comments on this change.

Change subject: IMPALA-5167: Reduce the number of Kudu clients created

Patch Set 2:

Commit Message:

Line 15: queries, and a map in KuduUtil to be used acress the FE
> can you add a comment about why it's OK to use the Kudu client in this way 

Line 22: 
> how about validation that there are no correctness issues with concurrent u
Turns out we already have a test that covers this -
 test_kudu_alter_table (it doesn't have to be concurrent). I've also manually verified.
File be/src/exec/

Line 77:     : DataSink(row_desc),
> set client_ nullptr

Line 148:     // Close() releases memory if client_ is not NULL, but since the memory was
> use nullptr here and below
File be/src/exprs/

Line 50:       table_desc_->kudu_master_addresses(), &client));
> ExecEnv::GetInstance()
File be/src/runtime/exec-env.h:

Line 131:   /// internally and return a pointer to it. All KuduClients accessed through this
> "look up" (lookup is a noun)
File bin/

Line 123: export IMPALA_KUDU_VERSION=238249c
> we should keep the version bumps in their own changes in case we need to ch
Sorry, didn't mean to include this.

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Gerrit-MessageType: comment
Gerrit-Change-Id: I6b0c12a256c33e8ef32315b3736cae2dea2ae705
Gerrit-PatchSet: 2
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Thomas Tauber-Marshall <>
Gerrit-Reviewer: Marcel Kornacker <>
Gerrit-Reviewer: Matthew Jacobs <>
Gerrit-Reviewer: Thomas Tauber-Marshall <>
Gerrit-HasComments: Yes

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