LXC-CHECKPOINT(1)LXC-CHECKPOINT(1)NAME
lxc-checkpoint - checkpoint a running container (not implemented yet)
SYNOPSIS
lxc-checkpoint --statefile=FILE --statefd=FD --name=NAME [ -k|-p ]
DESCRIPTION
lxc-checkpoint is a command to checkpoint the specified container NAME
and dumps its state into the file FILE. If the option --kill is speci‐
fied, the application running in the container will terminate after the
checkpoint just before resuming its execution. If the option --pause is
specified, the application will be stopped after the checkpoint just
before resuming execution. The command lxc-unfreeze will resume its
execution.
CHECKPOINT OPTIONS-S, --statefile=FILE
write the state of the container in this FILE. This option is
exclusive with --statefd below.
-d, --statefd=FD
write the state of the container in this FD file descriptor.
This option is exclusive with above --statefile.
-k,--kill
Kill container processes after checkpoint. the processes are
sent a SIGKILL signal.
This option is mutually exclusive with the following --pause
option.
-p,--pause
Pause container processes after checkpoint. The container will
be stopped until you resume it. This option is mutually exclu‐
sive with previously mentionned --kill option.
COMMON OPTIONS
These options are common to most of lxc commands.
-?, -h, --help
Print a longer usage message than normal.
--usage
Give the usage message
-q, --quiet
mute on
-o, --logfile=FILE
Output to an alternate log FILE. The default is no log.
-l, --logpriority=LEVEL
Set log priority to LEVEL. The default log priority is ERROR.
Possible values are : FATAL, CRIT, WARN, ERROR, NOTICE, INFO,
DEBUG.
Note that this option is setting the priority of the events log
in the alternate log file. It do not have effect on the ERROR
events log on stderr.
-n, --name=NAME
Use container identifier NAME. The container identifier format
is an alphanumeric string.
EXAMPLES
To start a new container 123 computing decimals of pi
lxc-execute -n 123 -- pi1 -d 500000
lxc-execute --name=123 -- pi1 -d 500000
to checkpoint the same container in dump-death mode
lxc-checkpoint -n 123 -S /share/123/chkpt1 -k
lxc-checkpoint --name=123 -S /share/123/chkpt1 -k
to checkpoint the same container and pause it
lxc-checkpoint -n 123 -S /share/123/chkpt1 -p
lxc-checkpoint --name=123 -S /share/123/chkpt1 -p
NOTES
Actually, this command does not operate. Its description helps to
define a CLI api for future Checkpoint / Restart solution
SEE ALSOlxc(1), lxc-create(1), lxc-destroy(1), lxc-start(1), lxc-stop(1), lxc-
execute(1), lxc-kill(1), lxc-console(1), lxc-monitor(1), lxc-wait(1),
lxc-cgroup(1), lxc-ls(1), lxc-ps(1), lxc-info(1), lxc-freeze(1), lxc-
unfreeze(1), lxc-attach(1), lxc.conf(5)AUTHOR
Daniel Lezcano <daniel.lezcano@free.fr>
IBM 24 May 2013 LXC-CHECKPOINT(1)