[kudu-CR] [util] introduce TTL-based cache

["Alexey Serbin (Code Review)" <ge...@cloudera.org>]

Hello Kudu Jenkins, Andrew Wong, Adar Dembo, Greg Solovyev, Hao Hao, 

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

    http://gerrit.cloudera.org:8080/12652

to look at the new patch set (#2).

Change subject: [util] introduce TTL-based cache
......................................................................

[util] introduce TTL-based cache

Added unit tests as well.

Change-Id: If214fe19810728fa590d1e0a3e5b2da86b020ac2
---
M src/kudu/util/CMakeLists.txt
M src/kudu/util/metrics.cc
M src/kudu/util/metrics.h
A src/kudu/util/ttl_cache-test.cc
A src/kudu/util/ttl_cache.h
A src/kudu/util/ttl_cache_metrics.cc
A src/kudu/util/ttl_cache_metrics.h
7 files changed, 512 insertions(+), 0 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/52/12652/2
-- 
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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: If214fe19810728fa590d1e0a3e5b2da86b020ac2
Gerrit-Change-Number: 12652
Gerrit-PatchSet: 2
Gerrit-Owner: Alexey Serbin <as...@cloudera.com>
Gerrit-Reviewer: Adar Dembo <ad...@cloudera.com>
Gerrit-Reviewer: Alexey Serbin <as...@cloudera.com>
Gerrit-Reviewer: Andrew Wong <aw...@cloudera.com>
Gerrit-Reviewer: Greg Solovyev <gs...@cloudera.com>
Gerrit-Reviewer: Hao Hao <ha...@cloudera.com>
Gerrit-Reviewer: Kudu Jenkins (120)