WildFly 9.0 Model Reference

  1. WildFly 9.0
  2. subsystem=undertow
  3. configuration=filter
  4. mod-cluster

A mod-cluster front end load balancer

Attributes (15)

  • advertise-frequency The frequency (in milliseconds) that mod-cluster advertises itself on the network
    • Attribute Value
    Default Value 10000
    Type INT
    Nillable true
    Expressions Allowed true
    Unit MILLISECONDS
    Storage configuration
    Access Type read-write
    Restart Required no-services
  • advertise-path The path that mod-cluster is registered under, defaults to /
    • Attribute Value
    Default Value /
    Type STRING
    Nillable true
    Expressions Allowed true
    Storage configuration
    Access Type read-write
    Restart Required no-services
  • advertise-protocol The protocol that is in use, defaults to HTTP
    • Attribute Value
    Default Value http
    Type STRING
    Nillable true
    Expressions Allowed true
    Storage configuration
    Access Type read-write
    Restart Required no-services
  • advertise-socket-binding The multicast group that is used to advertise
    • Attribute Value
    Type STRING
    Nillable false
    Expressions Allowed true
    Storage configuration
    Access Type read-write
    Restart Required no-services
  • broken-node-timeout The amount of time that must elapse before a broken node is removed from the table
    • Attribute Value
    Default Value 60000
    Type INT
    Nillable true
    Expressions Allowed true
    Unit MILLISECONDS
    Storage configuration
    Access Type read-write
    Restart Required no-services
  • cached-connections-per-thread The number of connections that will be kept alive indefinitely
    • Attribute Value
    Default Value 5
    Type INT
    Nillable true
    Expressions Allowed true
    Storage configuration
    Access Type read-write
    Restart Required no-services
  • connection-idle-timeout The amount of time a connection can be idle before it will be closed. Connections will not time out once the pool size is down to the configured minimum (as configured by cached-connections-per-thread)
    • Attribute Value
    Default Value 60
    Type INT
    Nillable true
    Expressions Allowed true
    Unit SECONDS
    Storage configuration
    Access Type read-write
    Restart Required no-services
  • connections-per-thread The number of connections that will be maintained to backend servers, per IO thread. Defaults to 10.
    • Attribute Value
    Default Value 10
    Type INT
    Nillable true
    Expressions Allowed true
    Storage configuration
    Access Type read-write
    Restart Required no-services
  • health-check-interval The frequency of health check pings to backend nodes
    • Attribute Value
    Default Value 10000
    Type INT
    Nillable true
    Expressions Allowed true
    Unit MILLISECONDS
    Storage configuration
    Access Type read-write
    Restart Required no-services
  • management-access-predicate A predicate that is applied to incoming requests to determine if they can perform mod cluster management commands. Provides additional security on top of what is provided by limiting management to requests that originate from the management-socket-binding
    • Attribute Value
    Type STRING
    Nillable true
    Expressions Allowed true
    Storage configuration
    Access Type read-write
    Restart Required no-services
  • management-socket-binding The socket binding of the mod_cluster management port. When using mod_cluster two HTTP listeners should be defined, a public one to handle requests, and one bound to the internal network to handle mod cluster commands. This socket binding should correspond to the internal listener, and should not be publicly accessible
    • Attribute Value
    Type STRING
    Nillable false
    Expressions Allowed true
    Storage configuration
    Access Type read-write
    Restart Required no-services
  • max-request-time The max amount of time that a request to a backend node can take before it is killed
    • Attribute Value
    Default Value -1
    Type INT
    Nillable true
    Expressions Allowed true
    Unit MILLISECONDS
    Storage configuration
    Access Type read-write
    Restart Required no-services
  • request-queue-size The number of requests that can be queued if the connection pool is full before requests are rejected with a 503
    • Attribute Value
    Default Value 10
    Type INT
    Nillable true
    Expressions Allowed true
    Storage configuration
    Access Type read-write
    Restart Required no-services
  • security-key The security key that is used for the mod-cluster group. All members must use the same security key.
    • Attribute Value
    Type STRING
    Nillable true
    Expressions Allowed true
    Storage configuration
    Access Type read-write
    Restart Required no-services
  • worker The XNIO worker that is used to send the advertise notifications
    • Attribute Value
    Default Value default
    Type STRING
    Nillable true
    Expressions Allowed true
    Storage configuration
    Access Type read-write
    Restart Required no-services

Operations (2)

  • add Adds a front end mod-proxy load balancer
    Request Parameter Type Required Expressions Allowed Default value Description
    advertise-frequency INT false true 10000 The frequency (in milliseconds) that mod-cluster advertises itself on the network
    advertise-path STRING false true / The path that mod-cluster is registered under, defaults to /
    advertise-protocol STRING false true http The protocol that is in use, defaults to HTTP
    advertise-socket-binding STRING true true The multicast group that is used to advertise
    broken-node-timeout INT false true 60000 The amount of time that must elapse before a broken node is removed from the table
    cached-connections-per-thread INT false true 5 The number of connections that will be kept alive indefinitely
    connection-idle-timeout INT false true 60 The amount of time a connection can be idle before it will be closed. Connections will not time out once the pool size is down to the configured minimum (as configured by cached-connections-per-thread)
    connections-per-thread INT false true 10 The number of connections that will be maintained to backend servers, per IO thread. Defaults to 10.
    health-check-interval INT false true 10000 The frequency of health check pings to backend nodes
    management-access-predicate STRING false true A predicate that is applied to incoming requests to determine if they can perform mod cluster management commands. Provides additional security on top of what is provided by limiting management to requests that originate from the management-socket-binding
    management-socket-binding STRING true true The socket binding of the mod_cluster management port. When using mod_cluster two HTTP listeners should be defined, a public one to handle requests, and one bound to the internal network to handle mod cluster commands. This socket binding should correspond to the internal listener, and should not be publicly accessible
    max-request-time INT false true -1 The max amount of time that a request to a backend node can take before it is killed
    request-queue-size INT false true 10 The number of requests that can be queued if the connection pool is full before requests are rejected with a 503
    security-key STRING false true The security key that is used for the mod-cluster group. All members must use the same security key.
    worker STRING false true default The XNIO worker that is used to send the advertise notifications
  • remove Removes a mod cluster proxy handler