Alexey Serbin has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/14519 )

Change subject: rebalancer_tool: limit max_moves_per_server for PolicyFixer
......................................................................


Patch Set 2:

(6 comments)

Thank you for addressing these.  Overall looks good, just a few nits.

http://gerrit.cloudera.org:8080/#/c/14519/2/src/kudu/tools/rebalancer_tool.h
File src/kudu/tools/rebalancer_tool.h:

http://gerrit.cloudera.org:8080/#/c/14519/2/src/kudu/tools/rebalancer_tool.h@292
PS2, Line 292: const Rebalancer::ReplicaMove& move
Modernize the signature to use the move semantics?

I.e. 'void UpdateOnMoveScheduled(Rebalancer::ReplicaMove)', and in call sites 
use 'UpdateOnMoveScheduled(std::move(...))'


http://gerrit.cloudera.org:8080/#/c/14519/2/src/kudu/tools/rebalancer_tool.cc
File src/kudu/tools/rebalancer_tool.cc:

http://gerrit.cloudera.org:8080/#/c/14519/2/src/kudu/tools/rebalancer_tool.cc@1164
PS2, Line 1164:   LOG(INFO) << Substitute("tablet $0: '$1' -> '?' move 
scheduled",
              :                           move_info.tablet_uuid, 
move_info.ts_uuid_from);
If using move semantics, log about the move before calling 
UpdateOnMoveSchedule()


http://gerrit.cloudera.org:8080/#/c/14519/2/src/kudu/tools/rebalancer_tool.cc@1285
PS2, Line 1285: max_moves_per_server_/2
nit: add spaces

  max_moves_per_server_ / 2


http://gerrit.cloudera.org:8080/#/c/14519/2/src/kudu/tools/rebalancer_tool.cc@1295
PS2, Line 1295:   auto tablet_uuid = move.tablet_uuid;
nit: add 'const' to be explicit it doesn't change in this scope?


http://gerrit.cloudera.org:8080/#/c/14519/2/src/kudu/tools/rebalancer_tool.cc@1296
PS2, Line 1296: auto
ditto


http://gerrit.cloudera.org:8080/#/c/14519/2/src/kudu/tools/rebalancer_tool.cc@1314
PS2, Line 1314:   // Update helper containers.
Good catch!



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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I3499299d1fb6bebae7351a1c7a7c9b114990db89
Gerrit-Change-Number: 14519
Gerrit-PatchSet: 2
Gerrit-Owner: Yifan Zhang <[email protected]>
Gerrit-Reviewer: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Reviewer: Tidy Bot (241)
Gerrit-Comment-Date: Tue, 22 Oct 2019 17:58:12 +0000
Gerrit-HasComments: Yes

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