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update placement rules #3169

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Merged
merged 2 commits into from
May 26, 2020
Merged

update placement rules #3169

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update placement rules
disksing May 20, 2020
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Merge branch 'docs-special-week' into update-placement-rules
nolouch May 26, 2020
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4 changes: 4 additions & 0 deletions configure-placement-rules.md
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Expand Up @@ -88,6 +88,10 @@ pd-ctl config placement-rules enable

PD 同样将根据系统的 `max-replicas` 及 `location-labels` 生成默认的规则。

> **注意：**
>
> 开启 Placement Rules 后，原先的 `max-replicas` 及 `location-labels` 配置项将不再生效。如果需要调整副本策略，应当使用 Placement Rules 相关接口。
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@kissmydb kissmydb May 20, 2020

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可以给一个修改 label 的示例吗？下面的接口没看到针对修改的

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@disksing disksing May 25, 2020

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改 count 和改 label 是一样的呀，都是编辑文件后保存，写两遍我感觉也太重复了。


### 关闭 Placement Rules 特性

使用 pd-ctl 可以关闭 Placement Rules 特性，切换为之前的调度策略。
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