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_r300851411
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File path: docs/dev/parallel.zh.md
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@@ -177,25 +159,19 @@ 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.
-## Setting the Maximum Parallelism
+## 设置最大并发度
-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.
+最大 parallelism 可以在所有设置 parallelism 的地方进行设定（除了客户端和系统层次）。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 default setting for the maximum parallelism is roughly
`operatorParallelism + (operatorParallelism / 2)` with
-a lower bound of `127` and an upper bound of `32768`.
+默认的最大 parallelism 大致等于算子的 parallelism + 算子的
+parallelism/2，其下限为 128，上限为 32768。
Review comment:
```suggestion
parallelism/2，其下限为 `128`，上限为 `32768`。
```
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