quorum wrapper

[sangleganesh]

• add wrappers to kvdb
• add a log wrapper
• add quorum wrapper.
  • allows setting/resetting quorum state.
  • in non-quorum state directly return kvdb_no_quorum error

[codecov-io]

Codecov Report

Merging #91 into master will increase coverage by 0.73%. The diff coverage is 0%.

@@            Coverage Diff             @@
##           master      #91      +/-   ##
==========================================
+ Coverage   68.59%   69.32%   +0.73%     
==========================================
  Files           7        7              
  Lines        3429     3436       +7     
==========================================
+ Hits         2352     2382      +30     
+ Misses        841      831      -10     
+ Partials      236      223      -13

Impacted Files	Coverage Δ
common/common.go	14.28% <0%> (-1.3%)	:arrow_down:
etcd/v2/kv_etcd.go	68.45% <0%> (+0.32%)	:arrow_up:
etcd/v3/kv_etcd.go	67.51% <0%> (+1.11%)	:arrow_up:
consul/kv_consul.go	72.88% <0%> (+1.74%)	:arrow_up:
consul/client.go	73.3% <0%> (+1.87%)	:arrow_up:

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[jvinod]

Can we insert and remove a the no quorum filter in runtime - which will just unconditionally return ErrNoQuorum. The filter will be inserted when we lose quorum and removed when we regain quorum.

[sangleganesh]

Can we insert and remove a the no quorum filter in runtime - which will just unconditionally return ErrNoQuorum. The filter will be inserted when we lose quorum and removed when we regain quorum.

ok, will do.