cluster-nodegroup¶
The following operations can be performed on "cluster-nodegroup":
add| show| set| rm| unset| unbind| bind|
add cluster nodegroup¶
Adds a nodegroup to the cluster. A nodegroup is a set of cluster nodes to which entities can be bound. Entities that are bound to a specific nodegroup are active on all the nodes of the group and not active on the nodes that are not part of the group.
Synopsis¶
add cluster nodegroup
Arguments¶
name Name of the nodegroup. The name uniquely identifies the nodegroup on the cluster.
strict Specifies whether cluster nodes, that are not part of the nodegroup, will be used as backup for the nodegroup. * Enabled - When one of the nodes goes down, no other cluster node is picked up to replace it. When the node comes up, it will continue being part of the nodegroup. * Disabled - When one of the nodes goes down, a non-nodegroup cluster node is picked up and acts as part of the nodegroup. When the original node of the nodegroup comes up, the backup node will be replaced.
Possible values: YES, NO Default value: NO
sticky Only one node can be bound to nodegroup with this option enabled. It specifies whether to prempt the traffic for the entities bound to nodegroup when owner node goes down and rejoins the cluster. * Enabled - When owner node goes down, backup node will become the owner node and takes the traffic for the entities bound to the nodegroup. When bound node rejoins the cluster, traffic for the entities bound to nodegroup will not be steered back to this bound node. Current owner will have the ownership till it goes down. * Disabled - When one of the nodes goes down, a non-nodegroup cluster node is picked up and acts as part of the nodegroup. When the original node of the nodegroup comes up, the backup node will be replaced.
Possible values: YES, NO Default value: NO
state State of the nodegroup. All the nodes binding to this nodegroup must have the same state. ACTIVE/SPARE/PASSIVE
Possible values: ACTIVE, SPARE, PASSIVE Default value: VAL_NOT_SET
priority Priority of Nodegroup. This priority is used for all the nodes bound to the nodegroup for Nodegroup selection Default value: -1 Minimum value: 0 Maximum value: 31
Example¶
add cluster nodegroup ng1 -strict yes
show cluster nodegroup¶
Displays information about the available nodegroups.
Synopsis¶
show cluster nodegroup [
Arguments¶
name Name of the nodegroup to be displayed. If a name is not provided, information about all nodegroups is displayed.
Output¶
node Nodes in the nodegroup
strict Specifies whether cluster nodes, that are not part of the nodegroup, will be used as backup for the nodegroup. * Enabled - When one of the nodes goes down, no other cluster node is picked up to replace it. When the node comes up, it will continue being part of the nodegroup. * Disabled - When one of the nodes goes down, a non-nodegroup cluster node is picked up and acts as part of the nodegroup. When the original node of the nodegroup comes up, the backup node will be replaced.
sticky Only one node can be bound to nodegroup with this option enabled. It specifies whether to prempt the traffic for the entities bound to nodegroup when owner node goes down and rejoins the cluster. * Enabled - When owner node goes down, backup node will become the owner node and takes the traffic for the entities bound to the nodegroup. When bound node rejoins the cluster, traffic for the entities bound to nodegroup will not be steered back to this bound node. Current owner will have the ownership till it goes down. * Disabled - When one of the nodes goes down, a non-nodegroup cluster node is picked up and acts as part of the nodegroup. When the original node of the nodegroup comes up, the backup node will be replaced.
vServer vserver that need to be bound to this nodegroup.
currentNodeMask Bitmap of current nodes in this nodegroup
backupNodeMask Bitmap of backup nodes in this nodegroup
boundedEntitiesCntFromPE Count of bounded entities to this nodegroup accoding to PE
boundedConfigEntitiesCnt Number of configs bound to this nodegroup
activeList Active node list of this nodegroup
backupList Backup node list of this nodegroup
identifierName stream identifier and rate limit identifier that need to be bound to this nodegroup.
gslbSite vserver that need to be bound to this nodegroup.
service name of the service bound to this nodegroup.
stateflag cfgflags This contains the flags for Cluster Nodegroup in DB
state State of the nodegroup. All the nodes binding to this nodegroup must have the same state. ACTIVE/SPARE/PASSIVE
priority Priority of Nodegroup. This priority is used for all the nodes bound to the nodegroup for Nodegroup selection
devno count
set cluster nodegroup¶
Modifies the attributes of a cluster nodegroup.
Synopsis¶
set cluster nodegroup
Arguments¶
name Name of the nodegroup to be modified.
strict Specifies whether cluster nodes, that are not part of the nodegroup, will be used as backup for the nodegroup. * Enabled - When one of the nodes goes down, no other cluster node is picked up to replace it. When the node comes up, it will continue being part of the nodegroup. * Disabled - When one of the nodes goes down, a non-nodegroup cluster node is picked up and acts as part of the nodegroup. When the original node of the nodegroup comes up, the backup node will be replaced.
Possible values: YES, NO Default value: NO
state State of the nodegroup. All the nodes binding to this nodegroup must have the same state. ACTIVE/SPARE/PASSIVE
Possible values: ACTIVE, SPARE, PASSIVE Default value: VAL_NOT_SET
priority Priority of Nodegroup. This priority is used for all the nodes bound to the nodegroup for Nodegroup selection Default value: -1 Minimum value: 0 Maximum value: 31
Example¶
set cluster nodegroup ng1 -strict yes
rm cluster nodegroup¶
Removes a nodegroup from the cluster.
Synopsis¶
rm cluster nodegroup
Arguments¶
name Name of the nodegroup to be removed.
Example¶
rm cluster nodegroup ng1
unset cluster nodegroup¶
Unset nodes from the given nodegroup or unset strict option.Refer to the set cluster nodegroup command for meanings of the arguments.
Synopsis¶
unset cluster nodegroup
Example¶
unset cluster nodegroup ng1 -strict
unbind cluster nodegroup¶
Unbinds a cluster node or an entity from a given nodegroup.
Synopsis¶
unbind cluster nodegroup
Arguments¶
name Name of the nodegroup from which you want to unbind a cluster node or an entity.
node ID of the node to be unbound from the nodegroup. Default value: -1 Minimum value: 0 Maximum value: 31
vServer Name of the virtual server to be unbound from the nodegroup.
identifierName Name of stream or limit identifier to be unbound from the nodegroup.
gslbSite Name of the GSLB site to be unbound from the nodegroup.
service Name of the service to be unbound from the nodegroup.
Example¶
unbind cluster nodegroup ng1 -vserver v1
bind cluster nodegroup¶
Binds a cluster node or an entity to the given nodegroup. A node can be bound to more than one nodegroup.
Synopsis¶
bind cluster nodegroup
Arguments¶
name Name of the nodegroup to which you want to bind a cluster node or an entity.
node ID of the node to be bound to the nodegroup. Default value: -1 Minimum value: 0 Maximum value: 31
vServer Name of the virtual server to be bound to the nodegroup.
identifierName Name of stream or limit identifier to be bound to the nodegroup.
gslbSite Name of the GSLB site to be associated with the nodegroup.
service Name of the ADNS or ADNS-TCP service to be associated with the nodegroup. This parameter is used to support GSLB in a cluster.
Example¶
bind cluster nodegroup ng1 -vserver v1