Mike Percy has submitted this change and it was merged. ( 
http://gerrit.cloudera.org:8080/9794 )

Change subject: consensus: Revert terminal state enforcement of 
FAILED_UNRECOVERABLE
......................................................................

consensus: Revert terminal state enforcement of FAILED_UNRECOVERABLE

In patch 7b88a42332540ace18ea033439ceac0e7cb68411 FAILED_UNRECOVERABLE
was noted as a terminal state. Todd pointed out that there are certain
corner cases where that may not be the case, such as a replica that
started up on a temporarily-failed or read-only disk, and then was
restarted. In such a case, if the leader was previously unable to evict
that node because of a lack of a majority, the affected replica may
revert to a HEALTHY state.

Change-Id: I2f858af8c578340f7a32b95702b5da7bbe81a675
Reviewed-on: http://gerrit.cloudera.org:8080/9794
Reviewed-by: Alexey Serbin <[email protected]>
Tested-by: Kudu Jenkins
---
M src/kudu/consensus/consensus_queue.cc
M src/kudu/consensus/metadata.proto
2 files changed, 2 insertions(+), 14 deletions(-)

Approvals:
  Alexey Serbin: Looks good to me, approved
  Kudu Jenkins: Verified

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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: I2f858af8c578340f7a32b95702b5da7bbe81a675
Gerrit-Change-Number: 9794
Gerrit-PatchSet: 2
Gerrit-Owner: Mike Percy <[email protected]>
Gerrit-Reviewer: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Mike Percy <[email protected]>

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