mrdirectorystats
Prints the space usage for each directory, for a container.
The mrdirectorystats
utility, when run for a container, prints the space
usage information for all directories, starting from the root of the container. This utility
is considerably faster than running ls -R
command on the root of the
container and is useful, for example, in identifying directories which need to be moved out
to a different volume while trying to reduce the size of the current namespace
container.
Syntax
/opt/mapr/server/mrdirectorystats
-c <container_id>
[ -p ]
[ -h ]
Parameters
Parameter | Description |
---|---|
c |
The ID of the container. |
h |
Prints help for running the command. |
p |
Prints only parent file ID (PFid) and other information about the file IDs (fids) in the container. |
Output
When you specify the -c
option, the utility prints the following information per directory
to the console:
DirFid |
The directory inode number. |
files |
The number of regular files under the directory. |
subdir |
The number of sub-directories inside the directory. |
others |
The number of other types of files (except directories and regular files), such as device, symlinks, kvstores, tables, etc., inside the directory. |
tfiles |
The total number of regular files stored in the entire directory tree. |
tsubdir |
The total number of sub-directories stored in the entire directory tree. |
tothers |
The total number of other type of files stored in the entire directory tree. |
cntrBlocks |
The space occupied in block size (8k) by the direct blocks of the total regular files (tfiles) in the directory tree, for the current container. |
fieletBlocks |
A rough estimation of the sum of all the data blocks of all the filelets of regular files spread across different data containers. |
The utility prints the following if -p
is specified with
-c
:
Inode |
The inode of the file. |
PFid |
The parent file ID. |
Type |
The type of entity in the container. Value can be one of the
following:
|
SubType |
The sub-type of the entity in the container. Value can be one
of the following:
|
Example
Retrieve the disk space usage information for a container by running the utility with the
-c
option:
# ./mrdirectorystats -c 2245
DirFid files subdir others tfiles tsubdir tothers cntrBlocks fileletBlocks
2245.16.2 5 3 3 6 4 3 0 65536
2245.39.131308 1 0 0 1 0 0 0 0
2245.40.131310 0 1 0 0 1 0 0 0
2245.41.131312 0 0 0 0 0 0 0 0
2245.45.131320 0 0 0 0 0 0 0 0
symlinks 2 fidmaps 1 tables 1 schemas 1 tabletmaps 1
Retrieve information about the file IDs in the container by running the
utility with the -c
and -p
option:
# ./mrdirectorystats -p -c 2049
Inode :32 PFid: 2049.16.2 Type: VolLink SubType: VolLink
Inode :33 PFid: 2049.16.2 Type: VolLink SubType: VolLink
Inode :34 PFid: 2049.16.2 Type: Directory SubType: Directory
Inode :35 PFid: 2049.34.131372 Type: VolLink SubType: VolLink
Inode :36 PFid: 2049.16.2 Type: VolLink SubType: VolLink
Inode :37 PFid: 2049.16.2 Type: VolLink SubType: VolLink
Inode :38 PFid: 2049.16.2 Type: VolLink SubType: VolLink
Inode :39 PFid: 2049.16.2 Type: KvStore SubType: Table
Inode :40 PFid: 2049.16.2 Type: VolLink SubType: VolLink
Inode :41 PFid: 2049.39.262468 Type: KvStore SubType: Tabletmap
Inode :42 PFid: 2049.39.262468 Type: KvStore SubType: Schema