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# 修改研发环境ADC设备(192.168.40.21)文件系统ftype 的值为1
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| ID | Creation Date | Assignee | Status |
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|----|----------------|----------|--------|
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| GIT-51 | 2020-06-18T18:44:27.000+0800 | 张智涵 | 完成 |
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# 结论:需要将192.168.40.21 文件系统的ftype 选项的值设置为1,以保证在docker 容器对文件夹的操作rm,mv 操作正常
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# 异常现象:在 ADC 设备192.168.40.21 上,运行 docker 容器时,发现docker 容器中,删除文件夹发生异常如下图:
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!image-2020-06-18-18-24-09-118.png!
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在机器上查询docker info 结果如下,发现support d_type 为false
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!image-2020-06-18-18-27-05-277.png!
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经过查询文档,文件系统docker d_type 支持关联 文件系统的ftype,ftype = 0 导致 dtype 为false,ftype 查询结果如下:
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!image-2020-06-18-18-34-04-446.png! **fu_mingwei** commented on *2020-06-18T18:59:24.913+0800*:
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docker 存储使用overlay2 时,关于d_type和 文件系统 ftype 的相关资料链接:
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[docker overlay 官方文档|https://docs.docker.com/storage/storagedriver/overlayfs-driver/]
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[overlay简介1|https://blog.csdn.net/luckyapple1028/article/details/77916194]
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[overlay简介2|https://blog.csdn.net/luckyapple1028/article/details/78075358]
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[What is d_type and why Docker overlayfs need it|https://blog.csdn.net/liukuan73/article/details/77986139]
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## Attachments
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**11960/image-2020-06-18-18-24-09-118.png**
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---
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**11959/image-2020-06-18-18-27-05-277.png**
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---
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**11958/image-2020-06-18-18-34-04-446.png**
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---
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