Difference between revisions of "CLI"

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m (moved Running CR tools to Usage)
(Options)
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     This option is valid for 'show' command only and allows to see content of
 
     This option is valid for 'show' command only and allows to see content of
 
     the <file> specified.
 
     the <file> specified.
 
-p <pid>::
 
    Checkpoint only one process specified by 'pid' instead of the whole process
 
    tree.
 
  
 
-t <pid>::
 
-t <pid>::
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-n <ns>::
 
-n <ns>::
 
     Checkpoint namespaces. Namespaces must be separated by comma.
 
     Checkpoint namespaces. Namespaces must be separated by comma.
     Currently supported namespaces: uts, ipc.
+
     We now support all namespaces -- uts, ipc, net and mnt
  
 
-o <file>::
 
-o <file>::

Revision as of 13:47, 18 September 2012

Since the tools and overall concept are still under heavy development, there are some known limitations applied, in particular only pure x86-64 environment is supported, no IA32 emulation allowed.

Synopsis

'crtools' [-c] [-s] [-f <file>] [-d] [-n] [-o <path>] [-D <path>] [-v [num]] [--help] <command> (-p|-t) <pid>

Description

'crtools' is command line utility to steer checkpoint and restore procedure.

Options

<command>::
    One of the follwong 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

-c::
    In case of 'show' command the dumped pages content will be shown in hex format.
    In case of 'dump' command processes being checkpointed wont be killed once
    checkpoint complete but rather continue execution.

-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 'crtools' 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.