Name | Synopsis | Description | Options | Operands | Examples | Exit Status | See Also
create-http-lb-ref [--terse={true|false}][ --echo={true|false} ] [ --interactive={true|false} ] [ --host host] [--port port] [--secure| -s ] [ --user admin_user] [--passwordfile filename] [--help] --config config_name | --lbname load_balancer_name [--lbpolicy round-robin] [--lbpolicymodule lb_policy_module] [--healthcheckerurl url] [--healthcheckerinterval 10] [--healthcheckertimeout 10] [--lbenableallinstances=true] [--lbenableallapplications=true] [--lbweight instance=weight[:instance=weight]*] target
This command is available only in domains that are configured to support clusters, such as domains that are created with the cluster profile.
Use the create-http-lb-ref command to:
Add an existing cluster or server instance to an existing load balancer configuration or load balancer. The load balancer forwards the requests to the clustered and stand-alone instances it references.
Set the load balancing policy to round-robin, weighted round-robin, or to a user-defined policy.
Configure a health checker for the load balancer. Any health checker settings defined here apply only to the target. If you do not create a health checker with this command, use create-http-health-checker.
Enable all instances in the target cluster for load balancing, or use enable-http-lb-server to enable them individually.
Enable all applications deployed to the target for load balancing, or use enable-http-lb-application to enable them individually.
Indicates that any output data must be very concise, typically avoiding human-friendly sentences and favoring well-formatted data for consumption by a script. Default is false.
Setting to true will echo the command line statement on the standard output. Default is false.
If set to true (default), only the required password options are prompted.
The machine name where the domain administration server is running. The default value is localhost.
The HTTP/S port for administration. This is the port to which you should point your browser in order to manage the domain. For example, http://localhost:4848.
The default port number is 4848.
If set to true, uses SSL/TLS to communicate with the domain administration server.
The authorized domain administration server administrative username.
If you have authenticated to a domain using the asadmin login command, then you need not specify the --user option on subsequent operations to this particular domain.
The --passwordfile option specifies the name, including the full path, of a file containing the password entries in a specific format. The entry for the password must have the AS_ADMIN_ prefix followed by the password name in uppercase letters.
For example, to specify the domain administration server password, use an entry with the following format: AS_ADMIN_PASSWORD=password, where password is the actual administrator password. Other passwords that can be specified include AS_ADMIN_MAPPEDPASSWORD, AS_ADMIN_USERPASSWORD, and AS_ADMIN_ALIASPASSWORD.
All remote commands must specify the admin password to authenticate to the domain administration server, either through --passwordfile or asadmin login, or interactively on the command prompt. The asadmin login command can be used only to specify the admin password. For other passwords, that must be specified for remote commands, use the --passwordfile or enter them at the command prompt.
If you have authenticated to a domain using the asadmin login command, then you need not specify the admin password through the --passwordfile option on subsequent operations to this particular domain. However, this is applicable only to AS_ADMIN_PASSWORD option. You will still need to provide the other passwords, for example, AS_ADMIN_USERPASSWORD, as and when required by individual commands, such as update-file-user.
For security reasons, passwords specified as an environment variable will not be read by asadmin.
The default value for AS_ADMIN_MASTERPASSWORD is changeit.
Displays the help text for the command.
Specifies which load balancer configuration to which to add clusters and server instances. Specify either a load balancer configuration or a load balancer. Specifying both results in an error.
Specifies the load balancer to which to add clusters and server instances. Specify either a load balancer configuration or a load balancer. Specifying both results in an error.
The policy the load balancer follows. Valid values are round-robin, weighted-round-robin, and user-defined. If you choose user-defined, specify a load balancer policy module with the lbpolicymodule option. If you choose weighted-round-robin assign weights to the server instances using the configure-lb-weight command. The default is round-robin.
If your load balancer policy is user-defined, use this option to specify the full path and name of the shared library of your load balancing policy module. The shared library needs to be in a location accessible by the web server.
The URL to ping to determine whether the instance is healthy.
The interval in seconds the health checker waits between checks of an unhealthy instance to see whether it has become healthy. The default value is 30 seconds. A value of 0 disables the health checker.
The interval in seconds the health checker waits to receive a response from an instance. If the health checker has not received a response in this interval, the instance is considered unhealthy. The default is 10.
Enables all instances in the target cluster for load balancing. If the target is a server instance, enables that instance for load balancing. The default value is true.
Enables all applications deployed to the target cluster or instance for load balancing. The default value is true.
The name of the instance and the weight you are assigning it. The weight must be an integer. The pairs of instances and weights are separated by colons. For example instance1=1:instance2=4 means that for every five requests, one goes to instance1 and four go to instance2. A weight of 1 is the default.
Specifies which cluster or instance to add to the load balancer. Valid values are:
cluster_name- Specifies that requests for this cluster will be handled by the load balancer.
stand-alone_instance_name- Specifies that requests for this stand-alone instance will be handled by the load balancer.
asadmin> create-http-lb-ref --user admin --passwordfile file --config mylbconfig cluster2 Command create-http-lb-ref executed successfully. |
asadmin> create-http-lb-ref --user admin --passwordfile file --lbname mylb cluster2 Command create-http-lb-ref executed successfully. |
asadmin> create-http-lb-ref --user admin --passwordfile file --config mylbconfig --lbpolicy weighted-round-robin --healthcheckerinterval 40 --healthcheckertimeout 20 --lbenableallinstances=true --lbenableallapplications=true cluster2 Command create-http-lb-ref executed successfully. |
asadmin> create-http-lb-ref --user admin --passwordfile file --lbpolicy user-defined --lbpolicymodule /user/modules/module.so --config mylbconfig cluster2 Command create-http-lb-ref executed successfully. |
delete-http-lb-ref(1), create-http-health-checker(1), enable-http-lb-server(1), enable-http-lb-application(1), list-http-lb-configs(1), list-http-lbs(1) configure-lb-weight(1)
Name | Synopsis | Description | Options | Operands | Examples | Exit Status | See Also