Re: [PATCH 18/19] Introduce -k option to enable FT migration mode (Kemari).

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On Mon, Dec 27, 2010 at 06:11:27PM +0900, Yoshiaki Tamura wrote:
> 2010/12/27 Michael S. Tsirkin <mst@xxxxxxxxxx>:
> > On Mon, Dec 27, 2010 at 05:25:36PM +0900, Yoshiaki Tamura wrote:
> >> When -k option is set to migrate command, it will turn on ft_mode to
> >> start FT migration mode (Kemari).
> >>
> >> Signed-off-by: Yoshiaki Tamura <tamura.yoshiaki@xxxxxxxxxxxxx>
> >> ---
> >>  hmp-commands.hx |    7 ++++---
> >>  migration.c     |    3 +++
> >>  qmp-commands.hx |    7 ++++---
> >>  3 files changed, 11 insertions(+), 6 deletions(-)
> >>
> >> diff --git a/hmp-commands.hx b/hmp-commands.hx
> >> index 4befbe2..0071409 100644
> >> --- a/hmp-commands.hx
> >> +++ b/hmp-commands.hx
> >> @@ -735,13 +735,14 @@ ETEXI
> >>
> >>      {
> >>          .name       = "migrate",
> >> -        .args_type  = "detach:-d,blk:-b,inc:-i,uri:s",
> >> -        .params     = "[-d] [-b] [-i] uri",
> >> +        .args_type  = "detach:-d,blk:-b,inc:-i,ft:-k,uri:s",
> >> +        .params     = "[-d] [-b] [-i] [-k] uri",
> >>          .help       = "migrate to URI (using -d to not wait for completion)"
> >>                     "\n\t\t\t -b for migration without shared storage with"
> >>                     " full copy of disk\n\t\t\t -i for migration without "
> >>                     "shared storage with incremental copy of disk "
> >> -                   "(base image shared between src and destination)",
> >> +                   "(base image shared between src and destination)"
> >> +                   "\n\t\t\t -k for FT migration mode (Kemari)",
> >
> > FT -> Fault tolerance?
> > IMO it's preferrable to avoid abbreviations in the documentation.
> 
> Yep.  It's fine for me to avoid abbreviations.
> 
> > Not sure whether we need to mention the codename here: is it likely to
> > help the users?
> 
> Ah:-)  Just didn't know what the official name should be, and
> placed Kemari for convenience.  Any ideas or preference here?
> 
> Yoshi

Do we need a name? Fault tolerance mode insufficient?

> >
> >>          .user_print = monitor_user_noop,
> >>       .mhandler.cmd_new = do_migrate,
> >>      },
> >> diff --git a/migration.c b/migration.c
> >> index 0db0b6d..a4a39eb 100644
> >> --- a/migration.c
> >> +++ b/migration.c
> >> @@ -92,6 +92,9 @@ int do_migrate(Monitor *mon, const QDict *qdict, QObject **ret_data)
> >>          return -1;
> >>      }
> >>
> >> +    if (qdict_get_try_bool(qdict, "ft", 0))
> >> +        ft_mode = FT_INIT;
> >> +
> >>      if (strstart(uri, "tcp:", &p)) {
> >>          s = tcp_start_outgoing_migration(mon, p, max_throttle, detach,
> >>                                           blk, inc);
> >> diff --git a/qmp-commands.hx b/qmp-commands.hx
> >> index 3486223..b28bf70 100644
> >> --- a/qmp-commands.hx
> >> +++ b/qmp-commands.hx
> >> @@ -431,13 +431,14 @@ EQMP
> >>
> >>      {
> >>          .name       = "migrate",
> >> -        .args_type  = "detach:-d,blk:-b,inc:-i,uri:s",
> >> -        .params     = "[-d] [-b] [-i] uri",
> >> +        .args_type  = "detach:-d,blk:-b,inc:-i,ft:-k,uri:s",
> >> +        .params     = "[-d] [-b] [-i] [-k] uri",
> >>          .help       = "migrate to URI (using -d to not wait for completion)"
> >>                     "\n\t\t\t -b for migration without shared storage with"
> >>                     " full copy of disk\n\t\t\t -i for migration without "
> >>                     "shared storage with incremental copy of disk "
> >> -                   "(base image shared between src and destination)",
> >> +                   "(base image shared between src and destination)"
> >> +                   "\n\t\t\t -k for FT migration mode (Kemari)",
> >>          .user_print = monitor_user_noop,
> >>       .mhandler.cmd_new = do_migrate,
> >>      },
> >> --
> >> 1.7.1.2
> > --
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