klion26 commented on a change in pull request #8995:
FLINK-13106][doc-zh]Translate Parallel Execution page into Chinese
URL: https://github.com/apache/flink/pull/8995#discussion_r300919771
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File path: docs/dev/parallel.zh.md
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@@ -177,25 +159,37 @@ try {
</div>
-### System Level
+### 系统层次
+
+可以通过设置 `./conf/flink-conf.yaml` 文件中的 `parallelism.default`
参数，在系统层次来指定所有执行环境的默认 parallelism。你可以通过查阅[配置文档]({{ site.baseurl
}}/zh/ops/config.html)获取更多细节。
+
-A system-wide default parallelism for all execution environments can be
defined by setting the
-`parallelism.default` property in `./conf/flink-conf.yaml`. See the
-[Configuration]({{ site.baseurl }}/ops/config.html) documentation for details.
+## 设置最大并发度
-## Setting the Maximum Parallelism
+最大 parallelism 可以在所有设置 parallelism 的地方进行设定（客户端和系统层次除外）。与调用 `setParallelism()`
方法修改并发度相似，你可以通过调用 `setMaxParallelism()` 方法来设定最大 parallelism。
-The maximum parallelism can be set in places where you can also set a
parallelism
-(except client level and system level). Instead of calling `setParallelism()`
you call
-`setMaxParallelism()` to set the maximum parallelism.
+默认的最大 parallelism 等于将 operatorParallelism + (operatorParallelism / 2） 值舍入到其下一个
`2` 的幂次方的值，其计算方式如以下所示。
Review comment:
```suggestion
默认的最大 parallelism 等于将 `operatorParallelism + (operatorParallelism / 2)`
值舍入到其下一个 `2` 的幂次方的值，其计算方式如以下所示。
```
I think the current translation is better than the previous, and maybe we
could do it better here.
"默认的最大 parallelism 等于将 operatorParallelism + (operatorParallelism / 2）
值舍入到其下一个 `2` 的幂次方的值" 读起来有一点拗口
I don't think we need to attach the code here.
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