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virsh: Add support for virDomainMigrateGetMaxDowntime

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Implement a migrate-getmaxdowntime command to complement migrate-setmaxdowntime.
This commit is contained in:
Scott Garfinkle 2017-08-17 17:17:21 -05:00 committed by John Ferlan
parent 457f8f33c9
commit 9002c5047a
2 changed files with 53 additions and 0 deletions
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47
tools/virsh-domain.c
View File

@ -10719,6 +10719,47 @@ cmdMigrateSetMaxDowntime(vshControl *ctl, const vshCmd *cmd)
return ret;
}
/*
* "migrate-getmaxdowntime" command
*/
static const vshCmdInfo info_migrate_getmaxdowntime[] = {
{.name = "help",
.data = N_("get maximum tolerable downtime")
},
{.name = "desc",
.data = N_("Get maximum tolerable downtime of a domain which is being live-migrated to another host.")
},
{.name = NULL}
};
static const vshCmdOptDef opts_migrate_getmaxdowntime[] = {
VIRSH_COMMON_OPT_DOMAIN_FULL,
{.name = NULL}
};
static bool
cmdMigrateGetMaxDowntime(vshControl *ctl, const vshCmd *cmd)
{
virDomainPtr dom = NULL;
unsigned long long downtime;
bool ret = false;
if (!(dom = virshCommandOptDomain(ctl, cmd, NULL)))
return false;
if (virDomainMigrateGetMaxDowntime(dom, &downtime, 0) < 0)
goto done;
vshPrint(ctl, "%llu\n", downtime);
ret = true;
done:
virshDomainFree(dom);
return ret;
}
/*
* "migrate-compcache" command
*/
@ -13875,6 +13916,12 @@ const vshCmdDef domManagementCmds[] = {
.info = info_migrate_setmaxdowntime,
.flags = 0
},
{.name = "migrate-getmaxdowntime",
.handler = cmdMigrateGetMaxDowntime,
.opts = opts_migrate_getmaxdowntime,
.info = info_migrate_getmaxdowntime,
.flags = 0
},
{.name = "migrate-compcache",
.handler = cmdMigrateCompCache,
.opts = opts_migrate_compcache,

6
tools/virsh.pod
View File

@ -1857,6 +1857,12 @@ Set maximum tolerable downtime for a domain which is being live-migrated to
another host. The I<downtime> is a number of milliseconds the guest is allowed
to be down at the end of live migration.
=item B<migrate-getmaxdowntime> I<domain>
Get the maximum tolerable downtime for a domain which is being live-migrated to
another host. This is the number of milliseconds the guest is allowed
to be down at the end of live migration.
=item B<migrate-compcache> I<domain> [I<--size> B<bytes>]
Sets and/or gets size of the cache (in bytes) used for compressing repeatedly