tree e32ed783e34a7edd37ca5c9681f3df019c3705cf
parent 35f4bc9f0bb9458a3d6fa996f5403c76d9db4fad
author jdesprez <jdesprez@google.com> 1508365346 -0700
committer jdesprez <jdesprez@google.com> 1508365441 -0700

Ensure metric collectors are cloned per shard

In order to avoid state issue when doing local sharding
with device metric collectors, ensure a copy is given to
each shard.

Test: unit tests
Bug: 36351803
Change-Id: Ib756efde7a25c69b694a2bec2b02e0e9145419e8