Mike Percy has submitted this change and it was merged. ( 
http://gerrit.cloudera.org:8080/8863 )

Change subject: KUDU-1097: try adding a new replica when majority is on-line
......................................................................

KUDU-1097: try adding a new replica when majority is on-line

With this patch, the consensus::ShouldAddReplica() utility function
checks whether a majority of voter replicas is on-line before attempting
to add a new non-voter replica into the tablet Raft configuration.  This
makes it more consistent with the behavior of the 'symmetric'
consensus::ShouldEvictReplica() function.

Change-Id: Ida198b96e76102f82d0b32116c45e41d26d15314
Reviewed-on: http://gerrit.cloudera.org:8080/8863
Tested-by: Kudu Jenkins
Reviewed-by: Mike Percy <mpe...@apache.org>
---
M src/kudu/consensus/quorum_util-test.cc
M src/kudu/consensus/quorum_util.cc
2 files changed, 67 insertions(+), 20 deletions(-)

Approvals:
  Kudu Jenkins: Verified
  Mike Percy: Looks good to me, approved

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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: Ida198b96e76102f82d0b32116c45e41d26d15314
Gerrit-Change-Number: 8863
Gerrit-PatchSet: 4
Gerrit-Owner: Alexey Serbin <aser...@cloudera.com>
Gerrit-Reviewer: Alexey Serbin <aser...@cloudera.com>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Mike Percy <mpe...@apache.org>

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