set hive.exec.reducers .max=<number>
时间: 2023-12-25 09:04:07 浏览: 39
The configuration parameter `hive.exec.reducers.max` is used to set the maximum number of reducers that can be used by a single Hive job. This parameter is used to limit the number of reducers for a particular job in order to prevent the job from consuming too many resources and causing performance issues.
To set this parameter, you need to use the following syntax:
```
set hive.exec.reducers.max=<number>;
```
where `<number>` is the maximum number of reducers that can be used by a Hive job. For example, if you want to set the maximum number of reducers to 10, you can use the following command:
```
set hive.exec.reducers.max=10;
```
Note that this parameter is only used when the number of reducers is not explicitly set for a particular job. If the number of reducers is set explicitly, then this parameter is ignored.
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