Hello Tidy Bot, Kudu Jenkins, Andrew Wong, Adar Dembo, Hao Hao,

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

    http://gerrit.cloudera.org:8080/12833

to look at the new patch set (#13).

Change subject: [master] introduce SentryPrivilegesFetcher
......................................................................

[master] introduce SentryPrivilegesFetcher

This patch incorporates a TTL-based cache into the data paths
of SentryAuthzProvider by introducing a new entity responsible for
fetching and caching the information received from Sentry authz
authority: SentryPrivilegesFetcher.  A cache's entry contains sanitized
and transformed information received as TListSentryPrivilegesResponse
from Sentry.

Set the newly introduced `--sentry_authz_cache_capacity_mb`
command-line flag to 0 to disable caching of authz privilege information
returned from Sentry.

Change-Id: Idaefacd50736f1f152dae34e76778e17b2e84cbe
---
M src/kudu/integration-tests/master_sentry-itest.cc
M src/kudu/master/CMakeLists.txt
M src/kudu/master/default_authz_provider.h
M src/kudu/master/sentry_authz_provider-test.cc
M src/kudu/master/sentry_authz_provider.cc
M src/kudu/master/sentry_authz_provider.h
A src/kudu/master/sentry_privileges_cache_metrics.cc
A src/kudu/master/sentry_privileges_cache_metrics.h
A src/kudu/master/sentry_privileges_fetcher.cc
A src/kudu/master/sentry_privileges_fetcher.h
M src/kudu/sentry/sentry_authorizable_scope.cc
M src/kudu/sentry/sentry_authorizable_scope.h
12 files changed, 1,232 insertions(+), 642 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/33/12833/13
--
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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: Idaefacd50736f1f152dae34e76778e17b2e84cbe
Gerrit-Change-Number: 12833
Gerrit-PatchSet: 13
Gerrit-Owner: Alexey Serbin <aser...@cloudera.com>
Gerrit-Reviewer: Adar Dembo <a...@cloudera.com>
Gerrit-Reviewer: Alexey Serbin <aser...@cloudera.com>
Gerrit-Reviewer: Andrew Wong <aw...@cloudera.com>
Gerrit-Reviewer: Hao Hao <hao....@cloudera.com>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Reviewer: Tidy Bot (241)

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