[BUG]sentinel客户端配置了 WritableDataSource ，dashboard更新配置，如果客户端的文件不存在，会报错

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#3,167 opened on Jul 10, 2023 3 comments 0 reactions 0 assignees View on GitHub

area/data-source

Description

![image](https://github.com/alibaba/Sentinel/assets/31408674/1c1f552d-1f02-4956-9138-af7edfe85c0a)

修复建议如下：文件不存在就新建
![image](https://github.com/alibaba/Sentinel/assets/31408674/44be035e-2cdb-4ec9-8c1b-dfd61adf79a7)

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