[Pacemaker] [PATCH]Bug 2567 - crm resource migrate should support an optional "role" parameter
Dejan Muhamedagic
dejanmm at fastmail.fm
Tue Apr 26 11:58:04 EDT 2011
Hi Holger,
On Sun, Apr 24, 2011 at 04:31:33PM +0200, Holger Teutsch wrote:
> On Mon, 2011-04-11 at 20:50 +0200, Andrew Beekhof wrote:
> > why?
> > CMD_ERR("Resource %s not moved:"
> > " specifying --master is not supported for
> > --move-from\n", rsc_id);
> >
> it did not look sensible to me but I can't recall the exact reasons 8-)
> It's now implemented.
> > also the legacy handling is a little off - do a make install and run
> > tools/regression.sh and you'll see what i mean.
>
> Remaining diffs seem to be not related to my changes.
>
> > other than that the crm_resource part looks pretty good.
> > can you add some regression testcases in tools/ too please?
> >
> Will add them once the code is in the repo.
>
> Latest diffs are attached.
The diffs seem to be against the 1.1 code, but this should go
into the devel repository. Can you please rebase the patches
against the devel code.
Cheers,
Dejan
> -holger
>
> diff -r b4f456380f60 shell/modules/ui.py.in
> --- a/shell/modules/ui.py.in Thu Mar 17 09:41:25 2011 +0100
> +++ b/shell/modules/ui.py.in Sun Apr 24 16:18:59 2011 +0200
> @@ -738,8 +738,9 @@
> rsc_status = "crm_resource -W -r '%s'"
> rsc_showxml = "crm_resource -q -r '%s'"
> rsc_setrole = "crm_resource --meta -r '%s' -p target-role -v '%s'"
> - rsc_migrate = "crm_resource -M -r '%s' %s"
> - rsc_unmigrate = "crm_resource -U -r '%s'"
> + rsc_move_to = "crm_resource --move-to -r '%s' %s"
> + rsc_move_from = "crm_resource --move-from -r '%s' %s"
> + rsc_move_cleanup = "crm_resource --move-cleanup -r '%s'"
> rsc_cleanup = "crm_resource -C -r '%s' -H '%s'"
> rsc_cleanup_all = "crm_resource -C -r '%s'"
> rsc_param = {
> @@ -776,8 +777,12 @@
> self.cmd_table["demote"] = (self.demote,(1,1),0)
> self.cmd_table["manage"] = (self.manage,(1,1),0)
> self.cmd_table["unmanage"] = (self.unmanage,(1,1),0)
> + # the next two commands are deprecated
> self.cmd_table["migrate"] = (self.migrate,(1,4),0)
> self.cmd_table["unmigrate"] = (self.unmigrate,(1,1),0)
> + self.cmd_table["move-to"] = (self.move_to,(2,4),0)
> + self.cmd_table["move-from"] = (self.move_from,(1,4),0)
> + self.cmd_table["move-cleanup"] = (self.move_cleanup,(1,1),0)
> self.cmd_table["param"] = (self.param,(3,4),1)
> self.cmd_table["meta"] = (self.meta,(3,4),1)
> self.cmd_table["utilization"] = (self.utilization,(3,4),1)
> @@ -846,9 +851,67 @@
> if not is_name_sane(rsc):
> return False
> return set_deep_meta_attr("is-managed","false",rsc)
> + def move_to(self,cmd,*args):
> + """usage: move-to <rsc>[:master] <node> [<lifetime>] [force]"""
> + elem = args[0].split(':')
> + rsc = elem[0]
> + master = False
> + if len(elem) > 1:
> + master = elem[1]
> + if master != "master":
> + common_error("%s is invalid, specify 'master'" % master)
> + return False
> + master = True
> + if not is_name_sane(rsc):
> + return False
> + node = args[1]
> + lifetime = None
> + force = False
> + if len(args) == 3:
> + if args[2] == "force":
> + force = True
> + else:
> + lifetime = args[2]
> + elif len(args) == 4:
> + if args[2] == "force":
> + force = True
> + lifetime = args[3]
> + elif args[3] == "force":
> + force = True
> + lifetime = args[2]
> + else:
> + syntax_err((cmd,force))
> + return False
> +
> + opts = ''
> + if node:
> + opts = "--node='%s'" % node
> + if lifetime:
> + opts = "%s --lifetime='%s'" % (opts,lifetime)
> + if force or user_prefs.get_force():
> + opts = "%s --force" % opts
> + if master:
> + opts = "%s --master" % opts
> + return ext_cmd(self.rsc_move_to % (rsc,opts)) == 0
> +
> def migrate(self,cmd,*args):
> - """usage: migrate <rsc> [<node>] [<lifetime>] [force]"""
> - rsc = args[0]
> + """Deprecated: migrate <rsc> [<node>] [<lifetime>] [force]"""
> + common_warning("migrate is deprecated, use move-to or move-from")
> + if len(args) >= 2 and args[1] in listnodes():
> + return self.move_to(cmd, *args)
> + return self.move_from(cmd, *args)
> +
> + def move_from(self,cmd,*args):
> + """usage: move-from <rsc>[:master] [<node>] [<lifetime>] [force]"""
> + elem = args[0].split(':')
> + rsc = elem[0]
> + master = False
> + if len(elem) > 1:
> + master = elem[1]
> + if master != "master":
> + common_error("%s is invalid, specify 'master'" % master)
> + return False
> + master = True
> if not is_name_sane(rsc):
> return False
> node = None
> @@ -888,12 +951,18 @@
> opts = "%s --lifetime='%s'" % (opts,lifetime)
> if force or user_prefs.get_force():
> opts = "%s --force" % opts
> - return ext_cmd(self.rsc_migrate % (rsc,opts)) == 0
> - def unmigrate(self,cmd,rsc):
> - "usage: unmigrate <rsc>"
> + if master:
> + opts = "%s --master" % opts
> + return ext_cmd(self.rsc_move_from % (rsc,opts)) == 0
> + def move_cleanup(self,cmd,rsc):
> + "usage: move_cleanup <rsc>"
> if not is_name_sane(rsc):
> return False
> - return ext_cmd(self.rsc_unmigrate%rsc) == 0
> + return ext_cmd(self.rsc_move_cleanup%rsc) == 0
> + def unmigrate(self,cmd,rsc):
> + "Deprecated: usage: unmigrate <rsc>"
> + common_warning("unmigrate is deprecated, use move-cleanup")
> + return self.move_cleanup(cmd, rsc)
> def cleanup(self,cmd,*args):
> "usage: cleanup <rsc> [<node>]"
> # Cleanup a resource on a node. Omit node to cleanup on
> diff -r b4f456380f60 tools/crm_resource.c
> --- a/tools/crm_resource.c Thu Mar 17 09:41:25 2011 +0100
> +++ b/tools/crm_resource.c Sun Apr 24 16:17:40 2011 +0200
> @@ -52,7 +52,8 @@
> const char *prop_id = NULL;
> const char *prop_set = NULL;
> char *move_lifetime = NULL;
> -char rsc_cmd = 'L';
> +int move_master = 0;
> +int rsc_cmd = 'L';
> char *our_pid = NULL;
> IPC_Channel *crmd_channel = NULL;
> char *xml_file = NULL;
> @@ -192,6 +193,33 @@
> return 0;
> }
>
> +/* return role of resource on node */
> +static int
> +role_on_node(resource_t *rsc, const char *node_uname)
> +{
> + GListPtr lpc = NULL;
> +
> + if(rsc->variant > pe_native) {
> + /* recursively call down */
> + GListPtr gIter = rsc->children;
> + for(; gIter != NULL; gIter = gIter->next) {
> + int role;
> + if((role = role_on_node(gIter->data, node_uname)) != RSC_ROLE_UNKNOWN)
> + return role;
> + }
> + return RSC_ROLE_UNKNOWN;
> + }
> +
> + for(lpc = rsc->running_on; lpc != NULL; lpc = lpc->next) {
> + node_t *node = (node_t*)lpc->data;
> + if(rsc->variant == pe_native
> + && safe_str_eq(node->details->uname, node_uname)) {
> + return rsc->role;
> + }
> + }
> + return RSC_ROLE_UNKNOWN;
> +}
> +
> #define cons_string(x) x?x:"NA"
> static void
> print_cts_constraints(pe_working_set_t *data_set)
> @@ -795,8 +823,9 @@
> }
>
> static int
> -move_resource(
> +make_move_constraint(
> const char *rsc_id,
> + int move_master,
> const char *existing_node, const char *preferred_node,
> cib_t * cib_conn)
> {
> @@ -824,7 +853,8 @@
> crm_xml_add(dont_run, XML_ATTR_ID, id);
> crm_free(id);
>
> - if(move_lifetime) {
> + /* don't compute lifetime on a delete operation */
> + if(move_lifetime && (existing_node != NULL || preferred_node != NULL)) {
> char *life = crm_strdup(move_lifetime);
> char *life_mutable = life;
>
> @@ -868,15 +898,17 @@
>
> } else {
> if(BE_QUIET == FALSE) {
> + const char *ms_text = move_master ? " as master": "";
> +
> fprintf(stderr,
> "WARNING: Creating rsc_location constraint '%s'"
> - " with a score of -INFINITY for resource %s"
> + " with a score of -INFINITY for resource %s%s"
> " on %s.\n",
> - ID(dont_run), rsc_id, existing_node);
> - CMD_ERR("\tThis will prevent %s from running"
> + ID(dont_run), rsc_id, ms_text, existing_node);
> + CMD_ERR("\tThis will prevent %s%s from running"
> " on %s until the constraint is removed using"
> - " the 'crm_resource -U' command or manually"
> - " with cibadmin\n", rsc_id, existing_node);
> + " the 'crm_resource --move-cleanup' command or manually"
> + " with cibadmin\n", rsc_id, ms_text, existing_node);
> CMD_ERR("\tThis will be the case even if %s is"
> " the last node in the cluster\n", existing_node);
> CMD_ERR("\tThis message can be disabled with -Q\n");
> @@ -890,6 +922,10 @@
> crm_xml_add(rule, XML_ATTR_ID, id);
> crm_free(id);
>
> + if(move_master) {
> + crm_xml_add(rule, XML_RULE_ATTR_ROLE, "Master");
> + }
> +
> crm_xml_add(rule, XML_RULE_ATTR_SCORE, MINUS_INFINITY_S);
> crm_xml_add(rule, XML_RULE_ATTR_BOOLEAN_OP, "and");
>
> @@ -935,6 +971,10 @@
> crm_xml_add(rule, XML_ATTR_ID, id);
> crm_free(id);
>
> + if(move_master) {
> + crm_xml_add(rule, XML_RULE_ATTR_ROLE, "Master");
> + }
> +
> crm_xml_add(rule, XML_RULE_ATTR_SCORE, INFINITY_S);
> crm_xml_add(rule, XML_RULE_ATTR_BOOLEAN_OP, "and");
>
> @@ -975,6 +1015,85 @@
> }
>
> static int
> +move_resource_from(resource_t *rsc, const char *from_uname, cib_t *cib_conn)
> +{
> + int rc = 0;
> +
> + /* if from_uname is empty figure out the current node */
> + if(from_uname == NULL) {
> + node_t *current = NULL;
> + if (rsc->variant > pe_group) {
> + CMD_ERR("Resource %s not moved:"
> + " move without hostname not supported for clones and masters\n", rsc_id);
> + return rc;
> + }
> +
> + if(rsc->running_on != NULL)
> + current = rsc->running_on->data;
> +
> + if(current == NULL) {
> + CMD_ERR("Resource %s not moved:"
> + " not-active and no preferred location specified.\n", rsc_id);
> + return cib_missing;
> + } else {
> + from_uname = current->details->uname;
> + }
> + }
> +
> + if(rsc->variant < pe_master && move_master) {
> + CMD_ERR("Error performing operation: "
> + "--master is only supported for m/s resources\n");
> + } else if (!do_force && role_on_node(rsc, from_uname) < RSC_ROLE_STARTED) {
> + CMD_ERR("Resource %s not moved:"
> + " not active on %s\n", rsc_id, from_uname);
> + } else {
> + /* zap a possibly existing stale master rule */
> + make_move_constraint(rsc_id, 0, NULL, NULL, cib_conn);
> + rc = make_move_constraint(rsc_id, move_master, from_uname, NULL, cib_conn);
> + }
> +
> + return rc;
> +}
> +
> +static int
> +move_resource_to(resource_t *rsc, const char *to_uname, cib_t *cib_conn)
> +{
> + int rc = 0;
> + int role = role_on_node(rsc, to_uname);
> +
> + if(rsc->variant < pe_master) {
> + if(move_master) {
> + CMD_ERR("Error performing operation: "
> + "--master is only supported for m/s resources\n");
> + } else if(!do_force && role >= RSC_ROLE_STARTED) {
> + CMD_ERR("Error performing operation: "
> + "%s is already active on %s\n",
> + rsc_id, to_uname);
> + } else {
> + rc = make_move_constraint(rsc_id, 0, NULL, to_uname, cib_conn);
> + }
> +
> + } else { /* pe_master */
> + if(!do_force && move_master && role == RSC_ROLE_MASTER) {
> + CMD_ERR("Error performing operation: "
> + "%s is already active on %s with role Master\n",
> + rsc_id, to_uname);
> + } else if(!do_force && move_master && role != RSC_ROLE_SLAVE) {
> + CMD_ERR("Error performing operation: "
> + "%s is not active on %s as Slave, can't move Master role\n",
> + rsc_id, to_uname);
> +
> + } else {
> + /* zap a possibly existing master rule */
> + make_move_constraint(rsc_id, 0, NULL, NULL, cib_conn);
> + rc = make_move_constraint(rsc_id, move_master, NULL, to_uname, cib_conn);
> + }
> + }
> +
> + return rc;
> +}
> +
> +static int
> list_resource_operations(
> const char *rsc_id, const char *host_uname, gboolean active, pe_working_set_t *data_set)
> {
> @@ -1093,6 +1212,11 @@
> crm_free(prefix);
> }
>
> +/* (partially) out of single letter options */
> +#define CMD_MOVE_TO (1001)
> +#define CMD_MOVE_FROM (1002)
> +#define CMD_MOVE_CLEANUP (1003)
> +#define OPT_MASTER (1101)
> static struct crm_option long_options[] = {
> /* Top-level Options */
> {"help", 0, 0, '?', "\t\tThis text"},
> @@ -1119,11 +1243,14 @@
> {"delete-parameter",1, 0, 'd', "Delete the named parameter for a resource. See also -m, --meta"},
> {"get-property", 1, 0, 'G', "Display the 'class', 'type' or 'provider' of a resource", 1},
> {"set-property", 1, 0, 'S', "(Advanced) Set the class, type or provider of a resource", 1},
> - {"move", 0, 0, 'M',
> - "\t\tMove a resource from its current location, optionally specifying a destination (-N) and/or a period for which it should take effect (-u)"
> + {"move-to", 0, 0, CMD_MOVE_TO,
> + "\t\tMove a resource from its current location, optionally specifying a role (--master), a destination (-N) and/or a period for which it should take effect (-u)"},
> + {"move-from", 0, 0, CMD_MOVE_FROM, "\tMove a resource away from the node specified by -N"
> "\n\t\t\t\tIf -N is not specified, the cluster will force the resource to move by creating a rule for the current location and a score of -INFINITY"
> "\n\t\t\t\tNOTE: This will prevent the resource from running on this node until the constraint is removed with -U"},
> - {"un-move", 0, 0, 'U', "\tRemove all constraints created by a move command"},
> + {"move-cleanup", 0, 0, CMD_MOVE_CLEANUP, "\tRemove all constraints created by a move command"},
> + {"move", 0, 0, 'M', "Deprecated: Use --move-to or --move-from"},
> + {"un-move", 0, 0, 'U', "Deprecated: Use --move-cleanup"},
>
> {"-spacer-", 1, 0, '-', "\nAdvanced Commands:"},
> {"delete", 0, 0, 'D', "\t\tDelete a resource from the CIB"},
> @@ -1137,6 +1264,7 @@
> {"resource-type", 1, 0, 't', "Resource type (primitive, clone, group, ...)"},
> {"parameter-value", 1, 0, 'v', "Value to use with -p, -g or -d"},
> {"lifetime", 1, 0, 'u', "\tLifespan of migration constraints\n"},
> + {"master", 0, 0, OPT_MASTER, "\t\tMaster role for migration constraints\n"},
> {"meta", 0, 0, 'm', "\t\tModify a resource's configuration option rather than one which is passed to the resource agent script. For use with -p, -g, -d"},
> {"utilization", 0, 0, 'z', "\tModify a resource's utilization attribute. For use with -p, -g, -d"},
> {"set-name", 1, 0, 's', "\t(Advanced) ID of the instance_attributes object to change"},
> @@ -1158,12 +1286,19 @@
> {"-spacer-", 1, 0, '-', " crm_resource --list", pcmk_option_example},
> {"-spacer-", 1, 0, '-', "Display the current location of 'myResource':", pcmk_option_paragraph},
> {"-spacer-", 1, 0, '-', " crm_resource --resource myResource --locate", pcmk_option_example},
> - {"-spacer-", 1, 0, '-', "Move 'myResource' to another machine:", pcmk_option_paragraph},
> + {"-spacer-", 1, 0, '-', "Move primitive or group 'myResource' off the active node:", pcmk_option_paragraph},
> {"-spacer-", 1, 0, '-', " crm_resource --resource myResource --move", pcmk_option_example},
> + {"-spacer-", 1, 0, '-', "Move 'myResource' off the specified node:", pcmk_option_paragraph},
> + {"-spacer-", 1, 0, '-', " crm_resource --resource myResource --move-off --node actNode", pcmk_option_example},
> {"-spacer-", 1, 0, '-', "Move 'myResource' to a specific machine:", pcmk_option_paragraph},
> - {"-spacer-", 1, 0, '-', " crm_resource --resource myResource --move --node altNode", pcmk_option_example},
> + {"-spacer-", 1, 0, '-', " crm_resource --resource myResource --move-to --node altNode", pcmk_option_example},
> + {"-spacer-", 1, 0, '-', " crm_resource --resource myMsResource --master --move-to --node altNode", pcmk_option_example},
> + {"-spacer-", 1, 0, '-', "Move 'myResource' away from a specific machine:", pcmk_option_paragraph},
> + {"-spacer-", 1, 0, '-', " crm_resource --resource myResource --move-from --node actNode", pcmk_option_example},
> + {"-spacer-", 1, 0, '-', "Move a primitive/group 'myResource' away from the current machine:", pcmk_option_paragraph},
> + {"-spacer-", 1, 0, '-', " crm_resource --resource myResource --move-from", pcmk_option_example},
> {"-spacer-", 1, 0, '-', "Allow (but not force) 'myResource' to move back to its original location:", pcmk_option_paragraph},
> - {"-spacer-", 1, 0, '-', " crm_resource --resource myResource --un-move", pcmk_option_example},
> + {"-spacer-", 1, 0, '-', " crm_resource --resource myResource --move-cleanup", pcmk_option_example},
> {"-spacer-", 1, 0, '-', "Tell the cluster that 'myResource' failed:", pcmk_option_paragraph},
> {"-spacer-", 1, 0, '-', " crm_resource --resource myResource --fail", pcmk_option_example},
> {"-spacer-", 1, 0, '-', "Stop a 'myResource' (and anything that depends on it):", pcmk_option_paragraph},
> @@ -1263,13 +1398,19 @@
> case 'C':
> case 'W':
> case 'M':
> + case CMD_MOVE_TO:
> + case CMD_MOVE_FROM:
> + case CMD_MOVE_CLEANUP:
> case 'U':
> case 'O':
> case 'o':
> case 'A':
> case 'a':
> rsc_cmd = flag;
> - break;
> + break;
> + case OPT_MASTER:
> + move_master = 1;
> + break;
> case 'p':
> case 'g':
> case 'd':
> @@ -1476,67 +1617,55 @@
> }
> rc = dump_resource(rsc_id, &data_set);
>
> - } else if(rsc_cmd == 'U') {
> + } else if(rsc_cmd == 'U' || rsc_cmd == CMD_MOVE_CLEANUP) {
> if(rsc_id == NULL) {
> CMD_ERR("Must supply a resource id with -r\n");
> rc = cib_NOTEXISTS;
> goto bail;
> - }
> - rc = move_resource(rsc_id, NULL, NULL, cib_conn);
> + }
> + if (rsc_cmd == 'U')
> + CMD_ERR("{-U|--un-move} is deprecated, use --move-cleanup\n");
> + rc = make_move_constraint(rsc_id, 0, NULL, NULL, cib_conn);
>
> - } else if(rsc_cmd == 'M') {
> - node_t *dest = NULL;
> - node_t *current = NULL;
> - const char *current_uname = NULL;
> + } else if(rsc_cmd == CMD_MOVE_TO || rsc_cmd == CMD_MOVE_FROM || rsc_cmd == 'M') {
> resource_t *rsc = pe_find_resource(data_set.resources, rsc_id);
> - if(rsc != NULL && rsc->running_on != NULL) {
> - current = rsc->running_on->data;
> - if(current != NULL) {
> - current_uname = current->details->uname;
> - }
> - }
>
> - if(host_uname != NULL) {
> - dest = pe_find_node(data_set.nodes, host_uname);
> - }
> -
> + /* some common error checking */
> if(rsc == NULL) {
> CMD_ERR("Resource %s not moved:"
> " not found\n", rsc_id);
> + goto bail;
> + }
>
> - } else if(rsc->variant == pe_native
> - && g_list_length(rsc->running_on) > 1) {
> - CMD_ERR("Resource %s not moved:"
> - " active on multiple nodes\n", rsc_id);
> -
> - } else if(host_uname != NULL && dest == NULL) {
> - CMD_ERR("Error performing operation: "
> - "%s is not a known node\n", host_uname);
> - rc = cib_NOTEXISTS;
> + if(host_uname != NULL) {
> + if(pe_find_node(data_set.nodes, host_uname) == NULL) {
> + CMD_ERR("Error performing operation: "
> + "%s is not a known node\n", host_uname);
> + rc = cib_NOTEXISTS;
> + goto bail;
> + }
> + }
>
> - } else if(host_uname != NULL
> - && safe_str_eq(current_uname, host_uname)) {
> - CMD_ERR("Error performing operation: "
> - "%s is already active on %s\n",
> - rsc_id, host_uname);
> + if (rsc_cmd == 'M') {
> + CMD_ERR("{-M|--move} is deprecated, use --move-to or --move-from\n");
> + if (host_uname == NULL) {
> + rsc_cmd = CMD_MOVE_FROM;
> + } else {
> + rsc_cmd = CMD_MOVE_TO;
> + }
> + }
>
> - } else if(current_uname != NULL
> - && (do_force || host_uname == NULL)) {
> - rc = move_resource(rsc_id, current_uname,
> - host_uname, cib_conn);
> + switch(rsc_cmd) {
> + case CMD_MOVE_TO:
> + rc = move_resource_to(rsc, host_uname, cib_conn);
> + break;
>
> -
> - } else if(host_uname != NULL) {
> - rc = move_resource(
> - rsc_id, NULL, host_uname, cib_conn);
> + case CMD_MOVE_FROM:
> + rc = move_resource_from(rsc, host_uname, cib_conn);
> + break;
>
> - } else {
> - CMD_ERR("Resource %s not moved: "
> - "not-active and no preferred location"
> - " specified.\n", rsc_id);
> - rc = cib_missing;
> - }
> -
> + }
> +
> } else if(rsc_cmd == 'G') {
> if(rsc_id == NULL) {
> CMD_ERR("Must supply a resource id with -r\n");
> diff -r b4f456380f60 doc/crm_cli.txt
> --- a/doc/crm_cli.txt Thu Mar 17 09:41:25 2011 +0100
> +++ b/doc/crm_cli.txt Sun Apr 24 16:30:01 2011 +0200
> @@ -810,28 +810,45 @@
> unmanage <rsc>
> ...............
>
> -[[cmdhelp_resource_migrate,migrate a resource to another node]]
> -==== `migrate` (`move`)
> -
> -Migrate a resource to a different node. If node is left out, the
> -resource is migrated by creating a constraint which prevents it from
> -running on the current node. Additionally, you may specify a
> +[[cmdhelp_resource_move-to,move a resource to another node]]
> +==== `move-to`
> +
> +Move a resource to a different node. The resource is moved by creating
> +a constraint which forces it to run on the specified node.
> +Additionally, you may specify a lifetime for the constraint---once it
> +expires, the location constraint will no longer be active.
> +For a master resource specify <rsc>:master to move the master role.
> +
> +Usage:
> +...............
> + move-to <rsc>[:master] <node> [<lifetime>] [force]
> +...............
> +
> +[[cmdhelp_resource_move-from,move a resource away from the specified node]]
> +==== `move-from`
> +
> +Move a resource away from the specified node.
> +If node is left out, the the node where the resource is currently active
> +is used.
> +The resource is moved by creating a constraint which prevents it from
> +running on the specified node. Additionally, you may specify a
> lifetime for the constraint---once it expires, the location
> constraint will no longer be active.
> +For a master resource specify <rsc>:master to move the master role.
>
> Usage:
> ...............
> - migrate <rsc> [<node>] [<lifetime>] [force]
> + move-from <rsc>[:master] [<node>] [<lifetime>] [force]
> ...............
>
> -[[cmdhelp_resource_unmigrate,unmigrate a resource to another node]]
> -==== `unmigrate` (`unmove`)
> -
> -Remove the constraint generated by the previous migrate command.
> +[[cmdhelp_resource_move-cleanup,Cleanup previously created move constraint]]
> +==== `move-cleanup`
> +
> +Remove the constraint generated by the previous move-to/move-from command.
>
> Usage:
> ...............
> - unmigrate <rsc>
> + move-cleanup <rsc>
> ...............
>
> [[cmdhelp_resource_param,manage a parameter of a resource]]
> _______________________________________________
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> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
>
> Project Home: http://www.clusterlabs.org
> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> Bugs: http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
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