metrics usage & refactor

[ucwong]

No description provided.

[codecov]

Codecov Report

Merging #1719 (65a1922) into master (5802a7b) will increase coverage by 0.01%.
Report is 2 commits behind head on master.
The diff coverage is 61.89%.

❗ Current head 65a1922 differs from pull request most recent head b513b10. Consider uploading reports for the commit b513b10 to get more accurate results

@@            Coverage Diff             @@
##           master    #1719      +/-   ##
==========================================
+ Coverage   52.76%   52.78%   +0.01%     
==========================================
  Files         484      485       +1     
  Lines       60657    60366     -291     
==========================================
- Hits        32007    31862     -145     
+ Misses      26210    26067     -143     
+ Partials     2440     2437       -3     

Files Changed	Coverage Δ
consensus/cuckoo/cuckoo.go	35.78% <0.00%> (ø)
metrics/graphite.go	0.00% <0.00%> (ø)
metrics/inactive.go	0.00% <0.00%> (ø)
metrics/internal/sampledata.go	0.00% <0.00%> (ø)
metrics/log.go	0.00% <0.00%> (ø)
metrics/metrics.go	26.85% <0.00%> (-1.04%)	⬇️
metrics/resetting_sample.go	0.00% <0.00%> (ø)
metrics/syslog.go	0.00% <0.00%> (ø)
metrics/writer.go	2.77% <0.00%> (ø)
metrics/gauge.go	37.14% <20.00%> (-7.50%)	⬇️
... and 16 more

... and 14 files with indirect coverage changes