fix the logger data race

[legenove]

fix logger data race

Fixes #148
@sanxun0325

[codecov-io]

Codecov Report

Merging #170 (057308d) into master (0647923) will increase coverage by 0.54%.
The diff coverage is 52.63%.

@@            Coverage Diff             @@
##           master     #170      +/-   ##
==========================================
+ Coverage   59.01%   59.55%   +0.54%     
==========================================
  Files          22       22              
  Lines        1447     1454       +7     
==========================================
+ Hits          854      866      +12     
+ Misses        521      517       -4     
+ Partials       72       71       -1     

Impacted Files	Coverage Δ
common/logger/logging.go	0.00% <0.00%> (ø)
common/logger/logger.go	92.85% <90.90%> (+9.18%)	⬆️
clients/naming_client/host_reator.go	56.79% <0.00%> (-2.47%)	⬇️
clients/config_client/config_client.go	59.44% <0.00%> (+1.18%)	⬆️

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[legenove]

优先只解决data race问题，帮忙review下～ @sanxun0325

[binbin0325]

LGTM

[lzp0412]

LGTM

[binbin0325]

Thanks for your contribution and look forward to more