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Line 1: − ''Main article: [[:Category:CLI|CLI]]''+ − == Synopsis ==+ − <pre> − criu <command> -t <pid> [<options>] − </pre> − − == Description == − criu is command line utility to steer checkpoint and restore procedure. − − == Options == − <pre> − <command>:: − One of the following commands − * 'dump' − to initiate checkpoint procedure − * 'restore' − to restore previously checkpointed processes − * 'show' − to decode binary dump files and show their contents in human − readable format − * 'check' − to test whether the kernel support is up-to-date − * 'exec' − to execute a system call from another task's context − * 'page-server' − to launch a page-server − * 'service' − to start RPC service − − -c:: − In case of 'show' command the dumped pages content will be shown in hex format. − − -D <path>:: − Use path 'path' as a base directory where to look for dump files set. This − commands allpies to any <command>. − − -s:: − Leave tasks in stopped state after checkpoint instead of killing them. − − -f <file>:: − This option is valid for 'show' command only and allows to see content of − the <file> specified. − − -t <pid>:: − Checkpoint the whole process tree starting from 'pid'. − − -d:: − Detach criu itself once restore is complete. − − -n <ns>:: − Checkpoint namespaces. Namespaces must be separated by comma. − We now support all namespaces -- uts, ipc, net and mnt − − -o <file>:: − Write logging messages to 'file'. − − -v <num>:: − Set logging level to 'num'. Valid options are: 0 - (silent, error messages − only), 1 - informative (default), 2 - debug messages. − </pre> − − == Examples == − − First thing to do is to [[Checking the kernel|check]] the kernel support being up-to-date with the − − <pre> − # criu check − </pre> − − command. If it says "Looks good", then you can proceed, otherwise dump/restore may not work. − − To checkpoint a program with pid 1234 and write all image files into directory checkpoint one should type − − <pre> − # criu dump -D checkpoint -t 1234 − </pre> − − To restore this program detaching criu itself, one should type − − <pre> − criu restore -d -D checkpoint − </pre> − − "Detaching" (the <code>-d</code> option) here means, that criu will exit after restoring the processes − and the latter will get re-parent-ed to the init task. − − To close a file descriptor number 1 in task with pid 1234 run − − <pre> − criu exec -t 1234 close 1 − </pre> − − To open a file named /foo/bar for read-write in the task with pid 1234 run − − <pre> − criu exec -t 1234 open '&/foo/bar' 2 − </pre> − − == Security == − − See [[Security]] Line 108:
Line 9: − * [[Incremental dumps]] − +
created (no need to have a bad obsoleted copy of man page here)
This is a collection of articles describing specific CRIU command line options.
{{Special:PrefixIndex/CLI/}}
== See also ==
== See also ==
* [[:Category:HOWTO]]
* [[:Category:HOWTO]]
* [[:Category:Live migration]]
* [[:Category:Live migration]]
* [[Statistics]]
* [[Statistics]]
* [[RPC]] API to C/R functionality
* [[RPC]] -- an API to C/R functionality
[[Category: API]]
[[Category: API]]