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virsh: Add options for parallel migration 

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
This commit is contained in:
Jiri Denemark 2017-10-24 17:00:59 +02:00
parent d3ea986af2
commit 5a303994ff
2 changed files with 26 additions and 0 deletions
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19
tools/virsh-domain.c
View File

@ -10562,6 +10562,14 @@ static const vshCmdOptDef opts_migrate[] = {
.type = VSH_OT_INT,
.help = N_("post-copy migration bandwidth limit in MiB/s")
},
{.name = "parallel",
.type = VSH_OT_BOOL,
.help = N_("enable parallel migration")
},
{.name = "parallel-connections",
.type = VSH_OT_INT,
.help = N_("number of connections for parallel migration")
},
{.name = NULL}
};
@ -10767,6 +10775,14 @@ doMigrate(void *opaque)
goto save_error;
}
if (vshCommandOptInt(ctl, cmd, "parallel-connections", &intOpt) < 0)
goto out;
if (intOpt &&
virTypedParamsAddInt(&params, &nparams, &maxparams,
VIR_MIGRATE_PARAM_PARALLEL_CONNECTIONS,
intOpt) < 0)
goto save_error;
if (vshCommandOptBool(cmd, "live"))
flags |= VIR_MIGRATE_LIVE;
if (vshCommandOptBool(cmd, "p2p"))
@ -10815,6 +10831,9 @@ doMigrate(void *opaque)
if (vshCommandOptBool(cmd, "tls"))
flags |= VIR_MIGRATE_TLS;
if (vshCommandOptBool(cmd, "parallel"))
flags |= VIR_MIGRATE_PARALLEL;
if (flags & VIR_MIGRATE_PEER2PEER || vshCommandOptBool(cmd, "direct")) {
if (virDomainMigrateToURI3(dom, desturi, params, nparams, flags) == 0)
ret = '0';

7
tools/virsh.pod
View File

@ -1916,6 +1916,7 @@ I<domain> I<desturi> [I<migrateuri>] [I<graphicsuri>] [I<listen-address>] [I<dna
[I<--comp-xbzrle-cache>] [I<--auto-converge>] [I<auto-converge-initial>]
[I<auto-converge-increment>] [I<--persistent-xml> B<file>] [I<--tls>]
[I<--postcopy-bandwidth> B<bandwidth>]
[I<--parallel> [I<--parallel-connections> B<connections>]]
Migrate domain to another host. Add I<--live> for live migration; <--p2p>
for peer-2-peer migration; I<--direct> for direct migration; or I<--tunnelled>
@ -2009,6 +2010,12 @@ Providing I<--tls> causes the migration to use the host configured TLS setup
the migration of the domain. Usage requires proper TLS setup for both source
and target.
I<--parallel> option will cause migration data to be sent over multiple
parallel connections. The number of such connections can be set using
I<--parallel-connections>. Parallel connections may help with saturating the
network link between the source and the target and thus speeding up the
migration.
Running migration can be canceled by interrupting virsh (usually using
C<Ctrl-C>) or by B<domjobabort> command sent from another virsh instance.