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doc: update the description of skip-dir-nlink #4185

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Nov 22, 2023
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doc: update the description of skip-dir-nlink #4185

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2 changes: 1 addition & 1 deletion docs/zh_cn/reference/command_reference.md
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Expand Up @@ -632,7 +632,7 @@ juicefs mount redis://localhost /mnt/jfs --backup-meta 0
|`--read-only`|启用只读模式挂载。|
|`--no-bgjob`|禁用后台任务，默认为 false，也就是说客户端会默认运行后台任务。后台任务包含：<br/><ul><li>清理回收站中过期的文件（在 [`pkg/meta/base.go`](https://github.com/juicedata/juicefs/blob/main/pkg/meta/base.go) 中搜索 `cleanupDeletedFiles` 和 `cleanupTrash`）</li><li>清理引用计数为 0 的 Slice（在 [`pkg/meta/base.go`](https://github.com/juicedata/juicefs/blob/main/pkg/meta/base.go) 中搜索 `cleanupSlices`）</li><li>清理过期的客户端会话（在 [`pkg/meta/base.go`](https://github.com/juicedata/juicefs/blob/main/pkg/meta/base.go) 中搜索 `CleanStaleSessions`）</li></ul>特别地，与[企业版](https://juicefs.com/docs/zh/cloud/guide/background-job)不同，社区版碎片合并（Compaction）不受该选项的影响，而是随着文件读写操作，自动判断是否需要合并，然后异步执行（以 Redis 为例，在 [`pkg/meta/base.go`](https://github.com/juicedata/juicefs/blob/main/pkg/meta/redis.go) 中搜索 `compactChunk`）|
|`--atime-mode=noatime` <VersionAdd>1.1</VersionAdd>|控制如何更新 atime（文件最后被访问的时间）。支持以下模式：<br/><ul><li>`noatime`（默认）：仅在文件创建和主动调用 `SetAttr` 时设置，平时访问与修改文件不影响 atime 值。考虑到更新 atime 需要运行额外的事务，对性能有影响，因此默认关闭。</li><li>`relatime`：仅在 mtime（文件内容修改时间）或 ctime（文件元数据修改时间）比 atime 新，或者 atime 超过 24 小时没有更新时进行更新。</li><li>`strictatime`：持续更新 atime</li></ul>|
|`--skip-dir-nlink value` <VersionAdd>1.1</VersionAdd>|跳过更新目录 nlink 前的重试次数 (仅用于 TKV, 0 代表不重试) (默认：20)|
|`--skip-dir-nlink value` <VersionAdd>1.1</VersionAdd>|跳过更新目录 nlink 前的重试次数 (仅用于 TKV, 0 代表永不跳过) (默认：20)|

#### 元数据缓存参数 {#mount-metadata-cache-options}

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