Hello Adar Dembo, Kudu Jenkins,

I'd like you to reexamine a change.  Please visit

    http://gerrit.cloudera.org:8080/6170

to look at the new patch set (#5).

Change subject: [catalog_manager] proper handling of catalog shutdown
......................................................................

[catalog_manager] proper handling of catalog shutdown

This changelist introduces the categorization of the system catalog's
read/write operation failures happened while executing the leader
post-election task.  There are two categories of errors: fatal and
non-fatal.

If a read/write operation fails in between terms of the system catalog
leadership, the error is considered non-fatal.  In case of a non-fatal
error the leader post-election task bails out: the catalog is no longer
the leader at the original term and the task should be executed by the
new leader upon the ElectedAsLeaderCb.

If a read/write operation fails happened at the same term of the system
catalog leadership, the error is considered fatal: this causes the
master process to crash.  This is done do avoid any possible
inconsistency when reading and persisting important system information
such as tables/tablets metadata, IPKI certificate authority information
and TSKs (Token Signing Keys).

All read/write operation failures happened during the system catalog's
shutdown are ignored.

Change-Id: I826826049e3c08a6c8345949690cbbedaea32ff8
---
M src/kudu/master/catalog_manager.cc
M src/kudu/master/catalog_manager.h
M src/kudu/master/master-test.cc
M src/kudu/master/sys_catalog-test.cc
M src/kudu/master/sys_catalog.cc
5 files changed, 187 insertions(+), 120 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/70/6170/5
-- 
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I826826049e3c08a6c8345949690cbbedaea32ff8
Gerrit-PatchSet: 5
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Alexey Serbin <aser...@cloudera.com>
Gerrit-Reviewer: Adar Dembo <a...@cloudera.com>
Gerrit-Reviewer: Alexey Serbin <aser...@cloudera.com>
Gerrit-Reviewer: Dan Burkert <danburk...@apache.org>
Gerrit-Reviewer: David Ribeiro Alves <dral...@apache.org>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Tidy Bot
Gerrit-Reviewer: Todd Lipcon <t...@apache.org>

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