tikvclient: fix a bug that double close channels. (#10991)#11101

Merged

zz-jason merged 4 commits intopingcap:release-3.0from hicqu:release-3.0

Jul 9, 2019

+239-60

Commits on Jul 5, 2019

tikvclient: fix a bug that double close channels. (pingcap#10991 )
hicqu
committed

Commits on Jul 7, 2019

Merge branch 'release-3.0' into release-3.0
winkyao
authored

Commits on Jul 8, 2019