WildFly Full 21 Model Reference

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  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 allowed in the worker task thread pool. Depending on the pool implementation, when this limit is reached tasks which cannot be queued may be rejected. This can be configured using the 'task-max-threads' attribute; see the description of that attribute for details on how this value is determined.
    • 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, a default value used which is calculated by the formula cpuCount * 16,as long as the MaxFileDescriptorCount jmx property allows that number; otherwise the calculation takes that max into account and adjusts 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, a default value used which is calculated by the formula cpuCount * 16,as long as the MaxFileDescriptorCount jmx property allows that number; otherwise the calculation takes that max into account and adjusts accordingly.
  • remove Removes worker