02.FastDFS操作命令

Leefs 2022-03-01 PM 1437℃ 0条

**1、上传文件命令**

**语法**

> fdfs_upload_file /etc/fdfs/client.conf 【本地文件路径】

示例

```shell
#将test.txt文件上传到FastDFS服务器
[fastdfs@master fdfs]$ fdfs_upload_file /etc/fdfs/client.conf /home/fastdfs/data/bb.txt 
group1/M00/00/00/wKgBaGId1DOACL6vAAAAeBKIAfk645.txt
```

上传成功后，返回一串带有组和路径标识的字符串，这是文件的id（下方都以文件ID表示）。

+ 通过group1分组对应fastdfs数据存储路径下查询该文件存储目录

```bash
[fastdfs@master 00]$ pwd
/fastdfs/storage/files/data/00/00
[fastdfs@master 00]$ ls
wKgBaGId1DOACL6vAAAAeBKIAfk645.txt   wKgBZ2IdwAGAThFJAAAAMOZ8mwo139.txt
```

+ 通过cat命令查看文件

```shell
[fastdfs@master 00]$ cat /fastdfs/storage/files/data/00/00/wKgBaGId1DOACL6vAAAAeBKIAfk645.txt
WWWWWWWWWWWWWWWWWWW
QQQQQQQQQQQQQQQQQQQ
TTTTTTTTTTTTTTTTTTT
YYYYYYYYYYYYYYYYYYY
OOOOOOOOOOOOOOOOOOO
```

**2、下载文件命令**

**语法**

> fdfs_download_file /etc/fdfs/client.conf 【文件ID】

**示例**

```shell
[fastdfs@master data]$ fdfs_download_file /etc/fdfs/client.conf group1/M00/00/00/wKgBZ2IdwAGAThFJAAAAMOZ8mwo139.txt
```

文件直接下载到当前目录下，直接通过cat命令就可以直接进行查看。

**3、查看文件信息命令**

**语法**

> fdfs_file_info /etc/fdfs/client.conf 【文件ID】

**示例**

```bash
[fastdfs@master data]$ fdfs_file_info /etc/fdfs/client.conf group1/M00/00/00/wKgBZ2IdwAGAThFJAAAAMOZ8mwo139.txt
GET FROM SERVER: false

file type: normal
source storage id: 0
source ip address: 192.168.192.12
file create timestamp: 2022-03-01 14:41:05
file size: 48
file crc32: -428041462 (0xe67c9b0a)
```

**4、追加文件内容命令**

+ 覆盖之前文件

**语法**

> fdfs_upload_appender /etc/fdfs/client.conf 【本地文件路径】【FastDFS文件ID】

**示例**

```shell
[fastdfs@master data]$ fdfs_upload_appender /etc/fdfs/client.conf ./aa.txt group1/M00/00/00/wKgBZ2IdwAGAThFJAAAAMOZ8mwo139.txt
group1/M00/00/00/wKgBZ2Id3WeEZeI8AAAAAOZ8mwo901.txt
```

会产生一个新的文件ID

+ 直接在文件后追加内容

**语法**

> fdfs_append_file /etc/fdfs/client.conf 【FastDFS文件ID】 【本地文件路径】

**示例**

```shell
[fastdfs@master data]$ fdfs_append_file /etc/fdfs/client.conf group1/M00/00/00/wKgBZ2Id3WeEZeI8AAAAAOZ8mwo901.txt ./bb.txt
```

**5、删除文件命令**

**语法**

> fdfs_delete_file /etc/fdfs/client.conf 【文件ID】

```shell
[fastdfs@master data]$ fdfs_delete_file /etc/fdfs/client.conf group1/M00/00/00/wKgBZ2Id3WeEZeI8AAAAAOZ8mwo901.txt
```

**6、监控服务器状态命令**

**语法**

> fdfs_monitor /etc/fdfs/client.conf

**示例**

```shell
[fastdfs@master data]$ fdfs_monitor /etc/fdfs/client.conf

[2022-03-01 17:31:41] DEBUG - base_path=/fastdfs/tracker, connect_timeout=30, network_timeout=60, tracker_server_count=2, anti_steal_token=0, anti_steal_secret_key length=0, use_connection_pool=0, g_connection_pool_max_idle_time=3600s, use_storage_id=0, storage server id count: 0

server_count=2, server_index=0

tracker server is 192.168.10.200:22122

group count: 3

Group 1:
group name = group1
disk total space = 50268 MB
disk free space = 44987 MB
trunk free space = 0 MB
storage server count = 1
active server count = 1
storage server port = 23000
storage HTTP port = 8888
store path count = 1
subdir count per path = 256
current write server index = 0
current trunk file id = 0

Storage 1:
    id = 192.168.10.202
    ip_addr = 192.168.10.202  ACTIVE
    http domain = 
........
........
```

**7、其他**

```shell
# 启动tracker服务
fdfs_trackerd /etc/fdfs/tracker.conf

# 启动storage服务
fdfs_storaged /etc/fdfs/storage.conf

#查看storage是否已经注册到了tracker下
fdfs_monitor /etc/fdfs/storage.conf

####### FastDFS重启

# 重启tracker
fdfs_trackerd /etc/fdfs/tracker.conf restart

# 重启storage
fdfs_storaged /etc/fdfs/storage.conf restart

######## FastDFS关闭

# 关闭tracker执行命令
fdfs_trackerd /etc/fdfs/tracker.conf stop

# 关闭storage执行命令
fdfs_storaged /etc/fdfs/storage.conf stop

##或者kill关闭fastdfs，但不建议在线上使用 kill -9 强制关闭，因为可能会导致文件信息不同步问题
```

标签: FastDFS

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