mfstrashtime - MooseFS
trash time (retention) management tools
These tools operate on object's trashtime
value, i.e. the number of
seconds the file is preserved in special trash
directory before it's
finally removed from filesystem. Trashtime
must be non-negative integer
prints current trashtime
value of given object(s).
option enables recursive mode, which works as usual for every given
file, but for every given directory additionally prints current
value of all contained objects (files and directories).
changes current trashtime
value of given
object(s). If new value is specified in SECONDS+
value is increased to SECONDS
for objects with lower
value and unchanged for the rest. Similarly, if new value is
specified as SECONDS-
value is decreased to
for objects with higher trashtime
value and unchanged
for the rest. -r
option enables recursive mode. These tools can be used
on any file, directory or deleted ( trash
tool can be used to copy trashtime
value from one
object to another.
are deprecated aliases for
and mfssettrashtime -r
Since version 3.0 of MooseFS trashtime
is stored in the system as number
the file is preserved in trash
directory. Given value
in seconds is rounded up to hours.
Most of mfstools
options to select format of printed numbers. -n
causes to print exact numbers, -h
uses binary prefixes (Ki, Mi, Gi as
2^10, 2^20 etc.) while -H
uses SI prefixes (k, M, G as 10^3, 10^6
show plain numbers respectivaly in
kibis (binary kilo - 1024), mebis (binary mega - 1024^2) and gibis (binary
giga - 1024^3). The same can be achieved by setting MFSHRFORMAT
environment variable to: 0
(exact numbers), 1
(binary prefixes), 2
(SI prefixes), 3
(exact numbers and binary prefixes), 4
(exact numbers and
SI prefixes). The default is to print just exact numbers.
When new object is created in MooseFS, attributes such as storage class,
trashtime and extra attributes are inherited from parent directory. So if you
set i.e. "noowner" attribute and storage class to
"important" in a directory then every new object created in this
directory will have storage class set to "important" and
"noowner" flag set. A newly created object inherits always the
current set of its parent's attributes. Changing a directory attribute does
not affect its already created children. To change an attribute for a
directory and all of its children use -r
Report bugs to <email@example.com>.
Copyright (C) 2018 Jakub Kruszona-Zawadzki, Core Technology Sp. z o.o.
This file is part of MooseFS.
MooseFS is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, version 2 (only).
MooseFS is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
MooseFS; if not, write to the Free Software Foundation, Inc., 51 Franklin St,
Fifth Floor, Boston, MA 02111-1301, USA or visit