Hello Tidy Bot, Alexey Serbin, Dan Burkert, Kudu Jenkins, Adar Dembo,

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

    http://gerrit.cloudera.org:8080/10075

to look at the new patch set (#20).

Change subject: KUDU-2191: Metadata Upgrade Tool
......................................................................

KUDU-2191: Metadata Upgrade Tool

This commit introduces an upgrade tool to allows backward compatibility.
It provides support to upgrade the metadata format of existing Impala
managed/external tables in HMS entries, as well as rename the existing
tables in Kudu to adapt to the new naming rules. To run this tool, it
requires to turn off the HMS integration feature. It adds test case
using external mini cluster to ensure the upgrade tool works as
expected.

Change-Id: I1c8488e1c7b04b8bedc31c83b1496b53bae49cb3
---
M 
java/kudu-hive/src/main/java/org/apache/kudu/hive/metastore/KuduMetastorePlugin.java
M 
java/kudu-hive/src/test/java/org/apache/kudu/hive/metastore/TestKuduMetastorePlugin.java
M src/kudu/client/client-test-util.cc
M src/kudu/client/client-test-util.h
M src/kudu/client/schema.h
M src/kudu/common/common.proto
M src/kudu/hms/hms_catalog-test.cc
M src/kudu/hms/hms_catalog.cc
M src/kudu/hms/hms_catalog.h
M src/kudu/hms/hms_client.cc
M src/kudu/hms/hms_client.h
M src/kudu/integration-tests/alter_table-randomized-test.cc
M src/kudu/integration-tests/master_failover-itest.cc
M src/kudu/integration-tests/master_hms-itest.cc
M src/kudu/mini-cluster/external_mini_cluster-test.cc
M src/kudu/mini-cluster/external_mini_cluster.cc
M src/kudu/mini-cluster/external_mini_cluster.h
M src/kudu/tools/CMakeLists.txt
M src/kudu/tools/kudu-tool-test.cc
M src/kudu/tools/tool.proto
M src/kudu/tools/tool_action.h
A src/kudu/tools/tool_action_hms.cc
M src/kudu/tools/tool_action_test.cc
M src/kudu/tools/tool_main.cc
M src/kudu/tools/tool_test_util.cc
M src/kudu/tools/tool_test_util.h
26 files changed, 775 insertions(+), 59 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/75/10075/20
--
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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I1c8488e1c7b04b8bedc31c83b1496b53bae49cb3
Gerrit-Change-Number: 10075
Gerrit-PatchSet: 20
Gerrit-Owner: Hao Hao <hao....@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: Hao Hao <hao....@cloudera.com>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Tidy Bot

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