WildFly 18.0 Model Reference

  1. WildFly 18.0
  2. subsystem=io
  3. worker

Defines workers

Children (2)

  • outbound-bind-address Defines bind addresses to use when connecting to specified destinations
  • server Runtime resource that describes listening servers utilizing this worker

Provided capabilities(1)

Name Dynamic Other provider points
org.wildfly.io.worker true

none

Attributes (11)

  • busy-task-thread-count An estimate of busy threads in the task worker thread pool
    • Attribute Value
    Type INT
    Nillable false
    Expressions Allowed false
    Storage runtime
    Access Type metric
  • core-pool-size Minimum number of threads to keep in the underlying thread pool even if they are idle. Threads over this limit will be terminated over time specified by task-keepalive attribute.
    • Attribute Value
    Type INT
    Nillable false
    Expressions Allowed false
    Storage runtime
    Access Type metric
  • io-thread-count I/O thread count
    • Attribute Value
    Type INT
    Nillable false
    Expressions Allowed false
    Storage runtime
    Access Type metric
  • io-threads Specify the number of I/O threads to create for the worker. If not specified, a default will be chosen, which is calculated by cpuCount * 2
    • Attribute Value
    Type INT
    Nillable true
    Expressions Allowed true
    Min 0
    Max 2,147,483,647
    Storage configuration
    Access Type read-write
    Restart Required all-services
  • max-pool-size The maximum number of threads to allow in the thread pool. Depending on implementation, when this limit is reached, tasks which cannot be queued may be rejected.
    • Attribute Value
    Type INT
    Nillable false
    Expressions Allowed false
    Storage runtime
    Access Type metric
  • queue-size An estimate of the number of tasks in the worker queue.
    • Attribute Value
    Type INT
    Nillable false
    Expressions Allowed false
    Storage runtime
    Access Type metric
  • shutdown-requested True is shutdown of the pool was requested
    • Attribute Value
    Type BOOLEAN
    Nillable false
    Expressions Allowed false
    Storage runtime
    Access Type read-only
  • stack-size The stack size (in bytes) to attempt to use for worker threads.
    • Attribute Value
    Default Value 0
    Type LONG
    Nillable true
    Expressions Allowed true
    Min 0
    Max -1
    Storage configuration
    Access Type read-write
    Restart Required all-services
  • task-core-threads Specify the starting number of threads for the worker task thread pool.
    • Attribute Value
    Default Value 2
    Type INT
    Nillable true
    Expressions Allowed true
    Min 0
    Max 2,147,483,647
    Storage configuration
    Access Type read-write
    Restart Required all-services
  • task-keepalive Specify the number of milliseconds to keep non-core task threads alive.
    • Attribute Value
    Default Value 60000
    Type INT
    Nillable true
    Expressions Allowed true
    Min 0
    Max 2,147,483,647
    Storage configuration
    Access Type read-write
    Restart Required all-services
  • task-max-threads Specify the maximum number of threads for the worker task thread pool.If not set, default value used which is calculated by formula cpuCount * 16,as long as MaxFileDescriptorCount jmx property allows that number, otherwise calculation takes max into account to adjust it accordingly.
    • Attribute Value
    Type INT
    Nillable true
    Expressions Allowed true
    Min 0
    Max 2,147,483,647
    Storage configuration
    Access Type read-write
    Restart Required all-services

Operations (2)

  • add Adds new worker
    Request Parameter Type Required Expressions Allowed Default value Description
    io-threads INT false true Specify the number of I/O threads to create for the worker. If not specified, a default will be chosen, which is calculated by cpuCount * 2
    stack-size LONG false true 0 The stack size (in bytes) to attempt to use for worker threads.
    task-core-threads INT false true 2 Specify the starting number of threads for the worker task thread pool.
    task-keepalive INT false true 60000 Specify the number of milliseconds to keep non-core task threads alive.
    task-max-threads INT false true Specify the maximum number of threads for the worker task thread pool.If not set, default value used which is calculated by formula cpuCount * 16,as long as MaxFileDescriptorCount jmx property allows that number, otherwise calculation takes max into account to adjust it accordingly.
  • remove Removes worker