Network Listeners

A network listener is a listen socket that has an IP address, port number, protocol, as well as various other configuration options. A listener can listen on a specific port on all network interfaces by using the IP 0.0.0.0, and a configured port. A virtual server will then be used to select a combination of network listeners to use for an application. For example, Payara Server Community has two default network listeners for user deployed applications: an insecure listener on port 8080 (http-listener-1), and a secure listener on port 8181 (http-listener-2).

Configuration

When configuring network listeners from the admin console, there are some visible configuration options that transparently configure the protocol being used. If a configuration property isn’t shown here but is visible in the admin console, see the page on protocols.

Existing network listeners can be configured from the admin console or with asadmin commands. The network listener configurations can be found in the admin console under Configurations → your-config → Network Config → Network Listeners.

Configuration Page Location

The following fields can be configured for network listeners:

Name

The unique name of the network listener. This cannot be edited from the admin console.

Asadmin Command:

set configs.config.server-config.network-config.network-listeners.network-listener.${network-listener-name}.name=value

Protocol

The protocol used by the network listener. This cannot be edited from the admin console.

Asadmin Command:

set configs.config.server-config.network-config.network-listeners.network-listener.${network-listener-name}.protocol=${protocol-name}

Status

The status of the network listener. This determines whether the listener will be actively listening for requests.

Asadmin Command:

set configs.config.server-config.network-config.network-listeners.network-listener.${network-listener-name}.status=[true/false]

JK Enabled

Whether mod_jk support should be enabled for this listener. Should only be enabled if mod_jk is being explicitly configured on an Apache Web Server in conjunction with Payara Server Community.

Asadmin Command:

set configs.config.server-config.network-config.network-listeners.network-listener.${network-listener-name}.jk-enabled=[true/false]

JK Configuration File

The location of the mod_jk configuration file. Defaults to ${com.sun.aas.instanceRoot}/config/glassfish-jk.properties.

Asadmin Command:

set configs.config.server-config.network-config.network-listeners.network-listener.${network-listener-name}.jk-configuration-file=/location/to/file

Port

The port used by the network listener. The selected port will be used to listen for requests.

Asadmin Command:

set configs.config.server-config.network-config.network-listeners.network-listener.${network-listener-name}.port=value

Address

The address used by the network listener. 0.0.0.0 corresponds to all addresses.

Asadmin Command:

set configs.config.server-config.network-config.network-listeners.network-listener.${network-listener-name}.address=value

Transport

The transport used by the network listener. This cannot be edited from the admin console. Defaults to tcp.

Asadmin Command:

set configs.config.server-config.network-config.network-listeners.network-listener.${network-listener-name}.transport=${transport-name}

Thread Pool

The thread pool used by the network listener. This determines the pool of threads used to service requests.

Asadmin Command:

set configs.config.server-config.network-config.network-listeners.network-listener.${network-listener-name}.thread-pool=${thread-pool-name}

Asadmin Commands

The following asadmin commands are available for administering network listeners instead of using the admin console. The parameters are all explained in the configuration options above.

create-network-listener

The create-network-listener command creates a network listener. It requires an already created transport and protocol. For more information on creating protocols, see protocols. The parameters are all explained in the configuration options above.

Format

asadmin> create-network-listener [--help]
           [--address address]
           --listenerport listener-port
           [--threadpool thread-pool]
           --protocol protocol
           [--transport transport]
           [--enabled={true|false}]
           [--jkenabled={false|true}]
           [--target target]
           listener-name

restart-http-listeners

The restart-http-listeners commands restarts all HTTP listeners but the admin-listener of the targeted instance(s). It is either used with the --all flag to target all instances or with a particular target instance, deployment group or cluster following the --target parameter. When target and all parameters are both omitted the default target is the DAS. When --all is used together with a target the target is ignored and the command affects all instances. NOTE: This command only restarts all HTTP listeners except the admin-listener. IIOP listeners are not affected and may require a server restart to make changes take effect.

Format

asadmin> restart-http-listeners [--all] [--target target]

Examples

asadmin> restart-http-listeners --all
asadmin> restart-http-listeners --target FlyingFish
asadmin> restart-http-listeners FlyingFish
asadmin> restart-http-listeners

First line affects all instances, second line affects only instance named FlyingFish, third is a short hand for the second, last is a short hand for restart-http-listeners server or restart-http-listeners --target=server.