core: adjust capacity to fit for more cases #1035
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Connor1996
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Connor1996
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Apr 19, 2018
server/core/store.go
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| @@ -114,16 +114,16 @@ func (s *StoreInfo) LeaderScore(delta int64) float64 { | |||
| // RegionScore returns the store's region score. | |||
| func (s *StoreInfo) RegionScore(highSpaceRatio, lowSpaceRatio float64, delta int64) float64 { | |||
| if s.RegionSize == 0 { | |||
| return float64(delta) | |||
| return float64(delta) / math.Max(s.RegionWeight, minWeight) | |||
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Is it ok to return a negative score?
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when region size == 0, the store must selected as target, so the delta must larger than 0
|
LGTM. |
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* server: skip check a region if there is already a pending operator. (#1029) * pdctl, api, schedule: pdctl supports scatter region. (#1028) * add change log (#1024) * scheduler: hot write scheduler randomly select the balance strategy (#1034) * *: new store region score function for balance (#1014) * core: adjust capacity to fit for more cases (#1035) * check config validation (#1036) * *: add metrics for hotspot cache (#1027) * Refine install instructions. (#1041) These extra steps can help new users who are perhaps not quite so familiar with Go setup and conventions. * *: add change log for 2.0 GA (#1038) * *: add change log for ga. * scheduler: adjust metrics (#1042) * fix parse error of config.toml (#1043) * server: resign pd leader when it is not same as etcd leader. (#1039) * server: fix the valid scheduler was deleted when start coordinator (#1045) * server: fix the valid scheduler was deleted when start coordinator
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if tikv uses whole storage capacity as capacity, it is probably available ratio is too small cause there are so many other irrelative files in the storage, namely,
capacity == available + used + irrelative. So pd need take it into consideration.