hadoop mfs

• [-R] — Enables recursion allowing you to perform the operation in subdirectories as well.
• <path> — Specifies path to file or directory.

• [-R] — (Optional) Enables recursion allowing you to perform the operation in subdirectories as well.
• <path> — (Required) Specifies path to file or directory.

• Chunks used for each file
• Server where each chunk resides
• Whether compression is enabled for each file
• Whether encryption is enabled for each file
• Whether audit is enabled (A) or disabled (U) for each file

• Whether compression is enabled for the directory (indicated by z )
• The configured chunk size (in bytes) for the directory.

• Chunks used for each file
• Server where each chunk resides

• Overwrite existing values with new values, if specified, for access types that were previously set.
• Set new values for access types that have not yet been set.
• Not set or modify access types that were not passed in with the command, whether they were previously set or are unset.

-R

Enables recursion allowing you to perform the operation in subdirectories as well. Recursion is enabled only if -R is specified; if -R is not specified, sets or modifies the permissions for the given directory only.

<ace>

Access Control Expressions defined using boolean expressions and sub-expressions.

-readfile

-writefile

-executefile

Specifies permissions (defined using ACE) for reading, writing, and/or executing the file.

-readdir

-lookupdir

Specifies permissions (defined using ACE) for accessing the directory. To read the files in the directory, the user must be granted lookupdir access and to write to or execute files in the directory, the user must be granted readdir and lookupdir access types.

-addchild

-deletechild

Specifies permissions (defined using ACE) for adding or deleting subdirectories.

-aces

Specifies ACEs as a single string. Specify a comma-separated list of ACEs within quotes. The following permissions can be set.

rf	Refers to read file access.
wf	Refers to write file access
ef	Refers to execute file access
rd	Refers to read directory access. NOTE: To write to or execute files in the directory, the user must be granted both rd and ld permissions.
ld	Refers to lookup directory access. NOTE: To read the files in the directory, the user must be granted ld access and to write to or execute files in the directory, the user must be granted both rd and ld permissions.
ac	Refers to add child directory access.
dc	Refers to delete child directory access.

NOTE: ACEs can be up to 60KB in length.

-preservemodebits

Indicates whether to preserve or modify POSIX mode bits. Values can be:

• true - preserve existing POSIX mode bits
• false - change POSIX mode bits to match the given ACE setting

By default, this is set to false.

-setinherit

Indicates whether or not to allow all files and subdirectories under the specified directory to inherit the ACE of the parent directory. Values can be:

• true - inherit ACE from parent
• false - do not inherit ACE from parent

By default, this is set to true.

If true, new files and directories under the parent will inherit the ACEs and corresponding POSIX mode bits from the parent directory.

If false, files and directories under the parent will not inherit the ACE of the parent directory. Instead, by default, the files and directories will get the default ACE, which is the empty string for all access types; POSIX mode bits will be set on the files and directories in the traditional way.

<path>

Specifies path to file or directory.

Enabling auditing of a directory does not enable auditing of files and subdirectories that exist in the directory. You must enable auditing on those existing files and subdirectories. However, any new files and subdirectories that you create will automatically be enabled for auditing. See Checking Whether Auditing is Enabled for a Directory, File, or MapR-DB Table.

For operations on the object to be logged, auditing also needs to be enabled on the cluster and the volume in which the object is located. See Enabling Auditing for details. If auditing is enabled for a directory, new files and directories created within that directory are also enabled for auditing.

• on — turns on compression using the default algorithm (LZ4)
• off — turns off compression
• lzf — turns on compression and sets the algorithm to LZF
• lz4 — turns on compression and sets the algorithm to LZ4
• zlib — turns on compression and sets the algorithm to ZLIB

mode

A text string indicating the read, write, and execute permissions for the owner, group, and other permissions. See also Managing Permissions.

compression

• U: uncompressed
• L: LZf
• Z (Uppercase): LZ4
• z (Lowercase): ZLIB

replication

The replication factor of the file (directories display a dash instead)

owner

The owner of the file or directory

group

The group of the file of directory

size

The size of the file or directory

date

The date the file or directory was last modified

chunk size

The chunk size of the file or directory

name

The name of the file or directory

chunk

The chunk number. The first chunk is a primary chunk labeled "p", a 64K chunk containing the root of the file. Subsequent chunks are numbered in order.

fid

The chunk's file ID, which consists of three parts:

• The ID of the container where the file is stored
• The inode of the file within the container
• An internal version number

host

The host on which the chunk resides. When several hosts are listed, the first host is the first copy of the chunk and subsequent hosts are replicas.

target volume name

The name of the volume pointed to by a volume link.

writability

Displays whether the volume is writable.