cosfs --help

1. 用法: cosfs BUCKET:[PATH] MOUNTPOINT [OPTION]...
   
2. 
   
3. 挂载腾讯云 COS 储存桶作为文件系统.
   
4. 
   
5.    cosfs 和 FUSE/mount 的常规选项:
   
6.       -o opt[,opt...]
   
7.       -o opt [-o opt] ...
   
8. 
   
9. cosfs 选项:
   
10. 
    
11.    大多数 cosfs 选项以"opt"的形式给出:
    
12. 
    
13.              <option_name>=<option_value>
    
14. 
    
15.    default_acl (默认="public-read")
    
16.      - 应用所有写入cos对象时的默认acl
    
17. 
    
18.    retries (默认="2")
    
19.       -  cos 事务失败时的重试次数
    
20. 
    
21.    use_cache (默认="" 即禁用缓存)
    
22.       - 用于本地文件缓存的本地文件夹
    
23. 
    
24.    del_cache (删除本地文件缓存)
    
25.       - cosfs启动和退出时删除本地文件缓存
    
26. 
    
27.    storage_class (默认="standard")
    
28.       - 使用指定的存储类存储对象.  可能的值:
    
29.         standard, standard_ia, 和 reduced_redundancy.
    
30. 
    
31.    public_bucket (默认="" 即禁用)
    
32.       - 设置为 1 时，匿名挂载公共存储桶
    
33. 
    
34.    passwd_file (默认="")
    
35.       - 指定要使用的 cosfs 密码文件
    
36. 
    
37.    connect_timeout (默认="300" 秒)
    
38.       - 连接等待超时时间
    
39. 
    
40.    readwrite_timeout (默认="60" 秒)
    
41.       - 读写等待超时时间
    
42. 
    
43.    max_stat_cache_size (默认="1000" 个 (约 4MB))
    
44.       - 文件元数据的缓存空间可缓存多少个文件的元数据
    
45. 
    
46.    stat_cache_expire (默认不过期)
    
47.       - 指定文件元数据缓存的过期时间(秒)
    
48. 
    
49.    enable_noobj_cache (默认禁用)
    
50.       - enable cache entries for the object which does not exist.
    
51.       cosfs always has to check whether file(or sub directory) exists
    
52.       under object(path) when cosfs does some command, since cosfs has
    
53.       recognized a directory which does not exist and has files or
    
54.       sub directories under itself. It increases ListBucket request
    
55.       and makes performance bad.
    
56.       You can specify this option for performance, cosfs memorizes
    
57.       in stat cache that the object(file or directory) does not exist.
    
58. 
    
59.    no_check_certificate
    
60.       - server certificate won't be checked against the available
    
61.       certificate authorities.
    
62. 
    
63.    nodnscache (禁用DNS缓存)
    
64.       - cosfs is always using dns cache, this option make dns cache disable.
    
65. 
    
66.    nosscache (禁用SSL会话缓存)
    
67.       - cosfs is always using ssl session cache, this option make ssl
    
68.       session cache disable.
    
69. 
    
70.    multireq_max (默认="20")
    
71.       - maximum number of parallel request for listing objects.
    
72. 
    
73.    parallel_count (默认="5")
    
74.       - number of parallel request for uploading big objects.
    
75.       cosfs uploads large object(over 20MB) by multipart post request,
    
76.       and sends parallel requests.
    
77.       This option limits parallel request count which cosfs requests
    
78.       at once. It is necessary to set this value depending on a CPU
    
79.       and a network band.
    
80. 
    
81.    multipart_size (默认="10")
    
82.       - part size, in MB, for each multipart request.
    
83. 
    
84.    ensure_diskfree (默认与 multipart_size 的值相同)
    
85.       - sets MB to ensure disk free space. cosfs makes file for
    
86.         downloading, uploading and caching files. If the disk free
    
87.         space is smaller than this value, cosfs do not use diskspace
    
88.         as possible in exchange for the performance.
    
89. 
    
90.    singlepart_copy_limit (默认="5120")
    
91.       - maximum size, in MB, of a single-part copy before trying
    
92.       multipart copy.
    
93. 
    
94.    url (默认="")
    
95.       - sets the url to use to access tencentyun cos
    
96. 
    
97.    default_permission (默认=777)
    
98.       - when the file do not have permission meta, cosfs will use this
    
99.       defalut value.
    
100. 
     
101.    endpoint (默认="")
     
102.       - sets the endpoint to use on signature version 4
     
103.       If the cosfs could not connect to the region specified
     
104.       by this option, cosfs could not run. But if you do not specify this
     
105.       option, and if you can not connect with the default region, cosfs
     
106.       will retry to automatically connect to the other region. So cosfs
     
107.       can know the correct region name, because cosfs can find it in an
     
108.       error from the COS server.
     
109. 
     
110.    mp_umask (默认为 "0000")
     
111.       - sets umask for the mount point directory.
     
112.       If allow_other option is not set, cosfs allows access to the mount
     
113.       point only to the owner. In the opposite case cosfs allows access
     
114.       to all users as the default. But if you set the allow_other with
     
115.       this option, you can control the permissions of the
     
116.       mount point by this option like umask.
     
117. 
     
118.    nomultipart (禁用分段上传)
     
119. 
     
120.    enable_content_md5 (默认禁用)
     
121.       - ensure data integrity during writes with MD5 hash.
     
122. 
     
123. 
     
124.    nocopyapi (for other incomplete compatibility object storage)
     
125.         For a distributed object storage which is compatibility COS
     
126.         API without PUT(copy api).
     
127.         If you set this option, cosfs do not use PUT with
     
128.         "x-cos-copy-source"(copy api). Because traffic is increased
     
129.         2-3 times by this option, we do not recommend this.
     
130. 
     
131.    norenameapi (for other incomplete compatibility object storage)
     
132.         For a distributed object storage which is compatibility COS
     
133.         API without PUT(copy api).
     
134.         This option is a subset of nocopyapi option. The nocopyapi
     
135.         option does not use copy-api for all command(ex. chmod, chown,
     
136.         touch, mv, etc), but this option does not use copy-api for
     
137.         only rename command(ex. mv). If this option is specified with
     
138.         nocopyapi, then cosfs ignores it.
     
139. 
     
140.    use_path_request_style (use legacy API calling style)
     
141.         Enble compatibility with OSS-like APIs which do not support
     
142.         the virtual-host request style, by using the older path request
     
143.         style.
     
144. 
     
145.    dbglevel (默认="crit")
     
146.         Set the debug message level. set value as crit(critical), err
     
147.         (error), warn(warning), info(information) to debug level.
     
148.         default debug level is critical. If cosfs run with "-d" option,
     
149.         the debug level is set information. When cosfs catch the signal
     
150.         SIGUSR2, the debug level is bumpup.
     
151. 
     
152.    curldbg - put curl debug message
     
153.         Put the debug message from libcurl when this option is specified.
     
154. 
     
155. FUSE/mount 选项:
     
156. 
     
157.    Most of the generic mount options described in 'man mount' are
     
158.    supported (ro, rw, suid, nosuid, dev, nodev, exec, noexec, atime,
     
159.    noatime, sync async, dirsync).  Filesystems are mounted with
     
160.    '-onodev,nosuid' by default, which can only be overridden by a
     
161.    privileged user.
     
162.    
     
163.    There are many FUSE specific mount options that can be specified.
     
164.    e.g. allow_other  See the FUSE's README for the full set.
     
165. 
     
166. 其它选项:
     
167. 
     
168. -h, --help        输出帮助信息.
     
169.      --version     输出版本信息.
     
170. -d  --debug       开启系统日志的调试消息。 指定 -d 两次会启用 FUSE 调试消息到 STDOUT。
     
171. -f                FUSE 前台选项 - 不要作为守护程序运行
     
172. -s                FUSE 单线程选项(禁用多线程操作)

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1. :~# cosfs --help
   
2. Usage: cosfs BUCKET:[PATH] MOUNTPOINT [OPTION]...
   
3. 
   
4. Mount an Tencent COS bucket as a file system.
   
5. 
   
6.    General forms for cosfs and FUSE/mount options:
   
7.       -o opt[,opt...]
   
8.       -o opt [-o opt] ...
   
9. 
   
10. cosfs Options:
    
11. 
    
12.    Most cosfs options are given in the form where "opt" is:
    
13. 
    
14.              <option_name>=<option_value>
    
15. 
    
16.    default_acl (default="public-read")
    
17.      - the default canned acl to apply to all written cos objects
    
18. 
    
19.    retries (default="2")
    
20.       - number of times to retry a failed cos transaction
    
21. 
    
22.    use_cache (default="" which means disabled)
    
23.       - local folder to use for local file cache
    
24. 
    
25.    del_cache (delete local file cache)
    
26.       - delete local file cache when cosfs starts and exits.
    
27. 
    
28.    storage_class (default="standard")
    
29.       - store object with specified storage class.  Possible values:
    
30.         standard, standard_ia, and reduced_redundancy.
    
31. 
    
32.    public_bucket (default="" which means disabled)
    
33.       - anonymously mount a public bucket when set to 1
    
34. 
    
35.    passwd_file (default="")
    
36.       - specify which cosfs password file to use
    
37. 
    
38.    connect_timeout (default="300" seconds)
    
39.       - time to wait for connection before giving up
    
40. 
    
41.    readwrite_timeout (default="60" seconds)
    
42.       - time to wait between read/write activity before giving up
    
43. 
    
44.    max_stat_cache_size (default="1000" entries (about 4MB))
    
45.       - maximum number of entries in the stat cache
    
46. 
    
47.    stat_cache_expire (default is no expire)
    
48.       - specify expire time(seconds) for entries in the stat cache.
    
49. 
    
50.    enable_noobj_cache (default is disable)
    
51.       - enable cache entries for the object which does not exist.
    
52.       cosfs always has to check whether file(or sub directory) exists
    
53.       under object(path) when cosfs does some command, since cosfs has
    
54.       recognized a directory which does not exist and has files or
    
55.       sub directories under itself. It increases ListBucket request
    
56.       and makes performance bad.
    
57.       You can specify this option for performance, cosfs memorizes
    
58.       in stat cache that the object(file or directory) does not exist.
    
59. 
    
60.    no_check_certificate
    
61.       - server certificate won't be checked against the available
    
62.       certificate authorities.
    
63. 
    
64.    nodnscache (disable dns cache)
    
65.       - cosfs is always using dns cache, this option make dns cache disable.
    
66. 
    
67.    nosscache (disable ssl session cache)
    
68.       - cosfs is always using ssl session cache, this option make ssl
    
69.       session cache disable.
    
70. 
    
71.    multireq_max (default="20")
    
72.       - maximum number of parallel request for listing objects.
    
73. 
    
74.    parallel_count (default="5")
    
75.       - number of parallel request for uploading big objects.
    
76.       cosfs uploads large object(over 20MB) by multipart post request,
    
77.       and sends parallel requests.
    
78.       This option limits parallel request count which cosfs requests
    
79.       at once. It is necessary to set this value depending on a CPU
    
80.       and a network band.
    
81. 
    
82.    multipart_size (default="10")
    
83.       - part size, in MB, for each multipart request.
    
84. 
    
85.    ensure_diskfree (default same multipart_size value)
    
86.       - sets MB to ensure disk free space. cosfs makes file for
    
87.         downloading, uploading and caching files. If the disk free
    
88.         space is smaller than this value, cosfs do not use diskspace
    
89.         as possible in exchange for the performance.
    
90. 
    
91.    singlepart_copy_limit (default="5120")
    
92.       - maximum size, in MB, of a single-part copy before trying
    
93.       multipart copy.
    
94. 
    
95.    url (default="")
    
96.       - sets the url to use to access tencentyun cos
    
97. 
    
98.    default_permission (default=777)
    
99.       - when the file do not have permission meta, cosfs will use this
    
100.       defalut value.
     
101. 
     
102.    endpoint (default="")
     
103.       - sets the endpoint to use on signature version 4
     
104.       If the cosfs could not connect to the region specified
     
105.       by this option, cosfs could not run. But if you do not specify this
     
106.       option, and if you can not connect with the default region, cosfs
     
107.       will retry to automatically connect to the other region. So cosfs
     
108.       can know the correct region name, because cosfs can find it in an
     
109.       error from the COS server.
     
110. 
     
111.    mp_umask (default is "0000")
     
112.       - sets umask for the mount point directory.
     
113.       If allow_other option is not set, cosfs allows access to the mount
     
114.       point only to the owner. In the opposite case cosfs allows access
     
115.       to all users as the default. But if you set the allow_other with
     
116.       this option, you can control the permissions of the
     
117.       mount point by this option like umask.
     
118. 
     
119.    nomultipart (disable multipart uploads)
     
120. 
     
121.    enable_content_md5 (default is disable)
     
122.       - ensure data integrity during writes with MD5 hash.
     
123. 
     
124. 
     
125.    nocopyapi (for other incomplete compatibility object storage)
     
126.         For a distributed object storage which is compatibility COS
     
127.         API without PUT(copy api).
     
128.         If you set this option, cosfs do not use PUT with
     
129.         "x-cos-copy-source"(copy api). Because traffic is increased
     
130.         2-3 times by this option, we do not recommend this.
     
131. 
     
132.    norenameapi (for other incomplete compatibility object storage)
     
133.         For a distributed object storage which is compatibility COS
     
134.         API without PUT(copy api).
     
135.         This option is a subset of nocopyapi option. The nocopyapi
     
136.         option does not use copy-api for all command(ex. chmod, chown,
     
137.         touch, mv, etc), but this option does not use copy-api for
     
138.         only rename command(ex. mv). If this option is specified with
     
139.         nocopyapi, then cosfs ignores it.
     
140. 
     
141.    use_path_request_style (use legacy API calling style)
     
142.         Enble compatibility with OSS-like APIs which do not support
     
143.         the virtual-host request style, by using the older path request
     
144.         style.
     
145. 
     
146.    dbglevel (default="crit")
     
147.         Set the debug message level. set value as crit(critical), err
     
148.         (error), warn(warning), info(information) to debug level.
     
149.         default debug level is critical. If cosfs run with "-d" option,
     
150.         the debug level is set information. When cosfs catch the signal
     
151.         SIGUSR2, the debug level is bumpup.
     
152. 
     
153.    curldbg - put curl debug message
     
154.         Put the debug message from libcurl when this option is specified.
     
155. 
     
156. FUSE/mount Options:
     
157. 
     
158.    Most of the generic mount options described in 'man mount' are
     
159.    supported (ro, rw, suid, nosuid, dev, nodev, exec, noexec, atime,
     
160.    noatime, sync async, dirsync).  Filesystems are mounted with
     
161.    '-onodev,nosuid' by default, which can only be overridden by a
     
162.    privileged user.
     
163.    
     
164.    There are many FUSE specific mount options that can be specified.
     
165.    e.g. allow_other  See the FUSE's README for the full set.
     
166. 
     
167. Miscellaneous Options:
     
168. 
     
169. -h, --help        Output this help.
     
170.      --version     Output version info.
     
171. -d  --debug       Turn on DEBUG messages to syslog. Specifying -d
     
172.                    twice turns on FUSE debug messages to STDOUT.
     
173. -f                FUSE foreground option - do not run as daemon.
     
174. -s                FUSE singlethread option
     
175.                    disable multi-threaded operation
     

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