DRAFT: cluster flow control based on redis POC

[louyuting]

Describe what this PR does / why we need it

cluster flow control implementation based on redis

refer: https://www.yuque.com/ximu/sentinel-golang/em55x6

Does this pull request fix one issue?

Describe how you did it

Describe how to verify it

Special notes for reviews

POC,, NOT Reday

[codecov-io]

Codecov Report

Merging #369 (42e1a7c) into master (c059530) will decrease coverage by 0.61%. The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master     #369      +/-   ##
==========================================
- Coverage   50.20%   49.58%   -0.62%     
==========================================
  Files          70       72       +2     
  Lines        4089     4140      +51     
==========================================
  Hits         2053     2053              
- Misses       1759     1810      +51     
  Partials      277      277              

Impacted Files	Coverage Δ
cluster/server/redis.go	0.00% <0.00%> (ø)
util/mutex.go	0.00% <0.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update c059530...42e1a7c. Read the comment docs.

[CLAassistant]

All committers have signed the CLA.

[codecov-commenter]

Codecov Report

Merging #369 (42e1a7c) into master (89ef54d) will decrease coverage by 3.55%. The diff coverage is 0.00%.

:exclamation: Current head 42e1a7c differs from pull request most recent head eabdd0c. Consider uploading reports for the commit eabdd0c to get more accurate results

@@            Coverage Diff             @@
##           master     #369      +/-   ##
==========================================
- Coverage   53.14%   49.58%   -3.56%     
==========================================
  Files          91       72      -19     
  Lines        5897     4140    -1757     
==========================================
- Hits         3134     2053    -1081     
+ Misses       2415     1810     -605     
+ Partials      348      277      -71     

Impacted Files	Coverage Δ
cluster/server/redis.go	0.00% <0.00%> (ø)
util/mutex.go	0.00% <0.00%> (ø)
core/log/metric/aggregator.go	25.86% <0.00%> (-53.31%)	:arrow_down:
core/base/block_error.go	17.64% <0.00%> (-28.01%)	:arrow_down:
core/log/metric/writer.go	0.00% <0.00%> (-26.91%)	:arrow_down:
core/base/result.go	26.53% <0.00%> (-17.66%)	:arrow_down:
core/stat/base/metric_bucket.go	71.42% <0.00%> (-12.36%)	:arrow_down:
api/slot_chain.go	76.47% <0.00%> (-11.03%)	:arrow_down:
api/tracer.go	28.57% <0.00%> (-8.93%)	:arrow_down:
core/circuitbreaker/circuit_breaker.go	67.55% <0.00%> (-7.12%)	:arrow_down:
... and 84 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update 89ef54d...eabdd0c. Read the comment docs.