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t

org.apache.spark.resource

ResourceAllocator

trait ResourceAllocator extends AnyRef

Trait used to help executor/worker allocate resources. Please note that this is intended to be used in a single thread.

Source
ResourceAllocator.scala
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Abstract Value Members

  1. abstract def resourceAddresses: Seq[String]
    Attributes
    protected
  2. abstract def resourceName: String
    Attributes
    protected
  3. abstract def slotsPerAddress: Int
    Attributes
    protected

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
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  2. final def ##(): Int
    Definition Classes
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  3. final def ==(arg0: Any): Boolean
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  4. def acquire(addrs: Seq[String]): Unit

    Acquire a sequence of resource addresses (to a launched task), these addresses must be available.

    Acquire a sequence of resource addresses (to a launched task), these addresses must be available. When the task finishes, it will return the acquired resource addresses. Throw an Exception if an address is not available or doesn't exist.

  5. final def asInstanceOf[T0]: T0
    Definition Classes
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  6. def availableAddrs: Seq[String]

    Sequence of currently available resource addresses.

    Sequence of currently available resource addresses.

    With slotsPerAddress greater than 1, availableAddrs can contain duplicate addresses e.g. with slotsPerAddress == 2, availableAddrs for addresses 0 and 1 can look like Seq("0", "0", "1"), where address 0 has two assignments available, and 1 has one.

  7. def clone(): AnyRef
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  8. final def eq(arg0: AnyRef): Boolean
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  9. def equals(arg0: Any): Boolean
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  10. def finalize(): Unit
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  11. final def getClass(): Class[_]
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  12. def hashCode(): Int
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  13. final def isInstanceOf[T0]: Boolean
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  14. final def ne(arg0: AnyRef): Boolean
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  15. final def notify(): Unit
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    @native()
  16. final def notifyAll(): Unit
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    @native()
  17. def release(addrs: Seq[String]): Unit

    Release a sequence of resource addresses, these addresses must have been assigned.

    Release a sequence of resource addresses, these addresses must have been assigned. Resource addresses are released when a task has finished. Throw an Exception if an address is not assigned or doesn't exist.

  18. final def synchronized[T0](arg0: ⇒ T0): T0
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  19. def toString(): String
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  20. final def wait(): Unit
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  21. final def wait(arg0: Long, arg1: Int): Unit
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  22. final def wait(arg0: Long): Unit
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