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| Title | Size | Download |
|---|---|---|
| 11-Process placement commands | 105.95 KB |
Process placement commands
affinity location-set
Use affinity location-set to set the affinity of a process to a set of CPUs.
Use undo affinity location-set to remove the affinity setting for the specified CPUs for a process.
Syntax
In standalone mode:
affinity location-set { slot slot-number }&<1-5> { attract strength | default | none | repulse strength }
undo affinity location-set { slot slot-number }&<1-5>
In IRF mode:
affinity location-set { chassis chassis-number slot slot-number }&<1-5> { attract strength | default | none | repulse strength }
undo affinity location-set { chassis chassis-number slot slot-number }&<1-5>
Default
No location affinity is set for any process.
Views
Placement process view
Predefined user roles
network-admin
Parameters
slot slot-number: Specifies an MPU by its slot number. (In standalone mode.)
chassis chassis-number slot slot-number: Specifies an MPU on an IRF member device. The chassis-number argument represents the member ID of the IRF member device. The slot-number argument represents the slot number of the MPU. If you do not specify an MPU, this command sets the affinity of a process to all MPUs. (In IRF mode.)
&<1-5>: Indicates that you can specify a maximum of five CPUs.
attract strength: Sets a positive affinity in the range of 1 to 100000. The higher the value, the stronger the preference for the process to run on the specified CPUs.
default: Sets the affinity to the default, a positive affinity of 200.
none: Sets the affinity to 0, which means the active process has no preference for any location and the system determines its location.
repulse strength: Sets a negative affinity in the range of 1 to 100000. The higher the value, the weaker the preference for the process to run on the specified CPUs.
Examples
# (In standalone mode.) Set a positive affinity of 500 to the specified slot for the staticroute process.
<Sysname> system-view
[Sysname] placement program staticroute
[Sysname-program-staticroute] affinity location-set slot 1 attract 500
affinity location-type
Use affinity location-type to set the affinity of a process to a location type.
Use undo affinity location-type to remove the affinity setting for the specified location type for a process.
Syntax
affinity location-type { current | paired | primary } { attract strength | default | none | repulse strength }
undo affinity location-type { current | paired | primary }
Default
No location type affinity is set for any process.
Views
Placement process view
Predefined user roles
network-admin
Parameters
current: Specifies the affinity to the current location of the active process. You can use the display placement program command to view the current location of an active process.
paired: Specifies the affinity to the locations of all standby processes.
primary: Specifies the affinity to the active MPU. (In standalone mode.)
primary: Specifies the affinity to the global active MPU. (In IRF mode.)
attract strength: Sets a positive affinity in the range of 1 to 100000. The higher the value, the stronger the preference of the process to run on the specified location type.
default: Sets the affinity to the default, a positive affinity of 200.
none: Sets the affinity to 0, which means the active process does not have any preference for any location type and the system determines its location.
repulse strength: Sets a negative affinity in the range of 1 to 100000. The higher the value, the weaker the preference for the process to run on the specified location type.
Examples
# Set a positive affinity of 500 to the current location for the staticroute process.
<Sysname> system-view
[Sysname] placement program staticroute
[Sysname-program-staticroute] affinity location-type current attract 500
Related commands
affinity location-set
affinity program
affinity program
Use affinity program to set the affinity for one process to run on the same location as another process.
Use undo affinity program to remove the affinity setting for one process to run on the same location as the specified process.
Syntax
affinity program program-name { attract strength | default | none | repulse strength }
undo affinity program program-name
Default
No process affinity is set for any process.
Views
Placement process view
Predefined user roles
network-admin
Parameters
program-name: Specifies the name of a process running on the device. The process name is a case-insensitive string of 1 to 15 characters. You can use the display placement program all command to view information about all processes running on the device.
attract strength: Sets a positive affinity in the range of 1 to 100000. The higher the value, the stronger the preference for the current process to run on the same location as the specified process.
default: Sets the affinity to the default, a positive affinity of 200.
none: Sets the affinity to 0, which means the active process has no preference to run on the same location as any other process and the system determines its location.
repulse strength: Sets a negative affinity in the range of 1 to 100000. The higher the value, the weaker the preference for the current process to run on the same location as the specified process.
Examples
# Set a negative affinity of 200 for the staticroute process to run on the same location as the syslog process.
<Sysname> system-view
[Sysname] placement program staticroute
[Sysname-program-staticroute] affinity program syslog repulse 200
Related commands
affinity location-set
affinity location-type
affinity self
Use affinity self to set the affinity of all instances of a process to run on the same location.
Use undo affinity self to restore the default.
Syntax
affinity self { attract strength | default | none | repulse strength }
undo affinity self
Default
No self affinity is set for any process.
Views
Placement process view
Predefined user roles
network-admin
Parameters
attract strength: Specifies a positive affinity in the range of 1 to 100000. The higher the value, the stronger the preference for all the instances of the current process to run on the same location.
default: Sets the affinity to the default, a positive affinity of 200.
none: Sets the affinity to 0, which means the instances of the process have no preference to run on the same location and the system determines their locations.
repulse strength: Sets a negative affinity in the range of 1 to 100000. The higher the value, the weaker the preference for all the instances of the current process to run on the same location.
Usage guidelines
This command sets the preference for a process to run all its instances on the same location or different locations. If the process has only one instance, the command does not take effect.
The self affinity set in the placement process view of a process or any of its instances takes effect on all the instances of the process. If you execute this command multiple times, the most recent configuration takes effect.
To view the instances of a process, use the display placement program all command.
Examples
# Set a negative self affinity of 200 for the staticroute process.
<Sysname> system-view
[Sysname] placement program staticroute
[Sysname-program-staticroute] affinity self repulse 200
Related commands
affinity location-set
affinity location-type
display ha service-group
Use display ha service-group to display service group information.
Syntax
display ha service-group { service-group-name [ instance instance-name ] | all }
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
service-group-name: Specifies a service group running on the device. The service group name is a case-insensitive string of 1 to 15 characters.
instance instance-name: Specifies a service group instance by its name, a case-insensitive string of 1 to 31 characters.
all: Specifies all service groups running on the device.
Usage guidelines
A service group is a collection of processes. Typically, a service group contains only one process. If a process has instances, the corresponding service group also has instances.
Examples
# (In standalone mode.) Display information about all service groups.
<Sysname> display ha service-group all
Service Group(instance name) Cur Location State
-------------------------------------------------------------------------------
syslog 1/0 Realtime Backup
cryptomgr 1/0 Realtime Backup
alarm 1/0 Realtime Backup
ifstatscfg 1/0 Realtime Backup
lauth 1/0 Realtime Backup
...
# (In standalone mode.) Display information about the staticroute service group.
<Sysname> display ha service-group staticroute
Service Group(instance name) Cur Location State
-------------------------------------------------------------------------------
staticroute 1/0(Active) Realtime Backup
Detailed information about services of the program:
Service PID Type Location State
-----------------------------------------------------------------
ifm 535 Active 1/0 Realtime Backup
staticroute 535 Active 1/0 Realtime Backup
Table 1 Command output
|
Field |
Description |
|
Service Group(instance name) |
Service group (instance) name. |
|
Cur Location |
Current location of the active processes for a service group. |
|
State |
Backup state of the active and standby processes for a service group. |
|
Detailed information about services of the program |
Detailed information about all active and standby processes in a service group. |
|
Service |
Service name. |
|
PID |
Process ID. |
|
Type |
Process type: Active or Standby. |
|
Location |
Location of the active process of a service. |
|
State |
Process status: · Realtime Backup. · Batch Backup. · Stopping. · Degrading. · Upgrading. |
display placement location
Use display placement location to display the processes running on the specified location.
Syntax
In standalone mode:
display placement location { all | slot slot-number }
In IRF mode:
display placement location { all | chassis chassis-number slot slot-number }
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
all: Displays all processes running on the device.
slot slot-number: Specifies an MPU by its slot number. (In standalone mode.)
chassis chassis-number slot slot-number: Specifies an MPU on an IRF member device. The chassis-number argument represents the member ID of the IRF member device. The slot-number argument represents the slot number of the MPU. (In IRF mode.)
Examples
# (In standalone mode.) Display all processes running on the device.
<Sysname> display placement location all
Program(s) placed at location: 1/0
syslog
...
display placement policy
Use display placement policy to display process placement policy information.
Syntax
display placement policy program { program-name | all | default }
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
program-name: Specifies a process by its name, a case-insensitive string of 1 to 15 characters.
all: Displays all process placement policies.
default: Displays the default process placement policy. If no default process placement policy is configured by using the placement program default command, the display placement policy program default command does not display any information.
Usage guidelines
The information about a placement policy is displayed only when the placement policy is configured for the specified process.
Examples
# (In standalone mode.) Display the default process placement policy.
<Sysname> display placement policy program default
Program: [default] : source
----------------------------------------------------------
affinity location-set slot 1 attract 500 : system [default]
Table 2 Command output
|
Field |
Description |
|
Program |
Process name and the placement policy for the process. If you execute the display placement policy program default command, the process name is displayed as [default]. |
|
source |
Source of the setting. If a default placement setting is configured in the view you enter with the placement program default command, this field displays system [default]. If a placement setting for the staticroute process is configured in the view you enter with the placement program program-name command, this field displays system staticroute. |
display placement program
Use display placement program to display the location of an active process.
Syntax
display placement program { program-name | all }
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
program-name: Specifies a process by its name, a case-insensitive string of 1 to 15 characters.
all: Specifies all processes running on the device.
Examples
# (In standalone mode.) Display the location of the staticroute active process.
<Sysname> display placement program staticroute
Service Group(instance name) Placed at location
--------------------------------------------------------------------------
staticroute 1/0
Table 3 Command output
|
Field |
Description |
|
Service Group(instance name) |
Service group (instance) name. |
|
Placed at location |
Location of the active process. If the active process is abnormal or is starting up, this field displays NA. |
display placement reoptimize
Use display placement reoptimize to display the predicted location changes that will occur after you execute the placement reoptimize command.
Syntax
display placement reoptimize program { program-name [ instance instance-name ] | all }
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
program-name: Specifies a process (that supports process optimization) by its name, a case-insensitive string of 1 to 15 characters.
instance instance-name: Specifies an instance of the specified process. The instance name is a case-insensitive string of 1 to 31 characters. Whether a process has multiple instances depends on the system software.
all: Specifies all processes that are running on the device and that support process optimization.
Examples
# (In standalone mode.) Display the predicted location changes for all processes.
<Sysname> display placement reoptimize program all
Predicted changes to the placement
Service Group(instance name) Cur location New location
---------------------------------------------------------------------
staticroute 1/0 1/0
...
The output contains the following information:
· Service Group(instance name)—Process name.
· Cur location—Current location of the active process.
· New location—New location of the active process after optimization.
placement program
Use placement program to enter placement process view.
Use undo placement program to delete the placement policy for a process.
Syntax
placement program { program-name [ instance instance-name ] | default }
undo placement program { program-name [ instance instance-name ] | default }
Views
System view
Predefined user roles
network-admin
Parameters
program-name: Specifies a process name, a case-insensitive string of 1 to 15 characters.
instance instance-name: Specifies the name of an instance of the specified process. The instance name is a case-insensitive string of 1 to 31 characters. If you do not specify this option, this command enters placement policy view. The settings in placement policy view takes effect on all instances. Whether a process has multiple instances depends on the system software.
default: Configures the default placement policy for all processes.
Usage guidelines
You configure a process placement policy to optimize the distribution of processes in your system for optimal distribution of CPU and memory resources.
A process placement policy contains the affinity location-type, affinity location-set, affinity program, and affinity self commands. The commands describe the preferences of the process for a specific location.
For an instance of a process, the priorities of the settings in placement process view of the instance, placement process view of the process, and the default placement process view are in descending order. For a process, the settings in placement process view takes precedence over the settings in the default placement process view.
You can configure all the affinity commands in the placement policy for a process. Based on the placement policy and hardware resources, the system automatically determines the location for running the active process. Before you apply the policy, you can use the display placement reoptimize command to view the predicted location for the process. When a process switchover occurs, the process on the predicted location is selected as the active process.
Examples
# Enter the placement process view of the staticroute process.
<Sysname> system-view
[Sysname] placement program staticroute
[Sysname-program-staticroute]
# Enter the default placement process view.
<Sysname> system-view
[Sysname] placement program default
[Sysname-program-default]
placement reoptimize
Use placement reoptimize to apply configured process placement policies for optimizing process placement.
Syntax
placement reoptimize
Views
System view
Predefined user roles
network-admin
Usage guidelines
|
|
CAUTION: To avoid neighbor flapping of related protocols, make sure HA features such as NSR are GR are configured for the processes and are stable before optimizing process placement. |
After you execute this command, the system bases its placement decisions on the new process placement policies, hardware resources, and locations and states of active processes. The process on the new location is selected as the active process. If the new location for an active process is different from its current location, a process switchover is triggered. The system changes the state of the original active process to standby and the state of the standby process on the new location to active. You can use the display placement program command to view the new location of the active process.
To keep the system stable, do not perform any tasks that require process restart when you execute this command.
Examples
# (In standalone mode.) Reoptimize process placement.
<Sysname> system-view
[Sysname] placement reoptimize
Predicted changes to the placement
Service Group(instance name) Cur location New location
---------------------------------------------------------------------
staticroute 1/0 1/0
Continue? [y/n]:y
Re-optimization of the placement start. You will be notified on completion
Re-optimization of the placement complete. Use 'display placement' to view the new placement
This example uses only the staticroute process.
