Package org.apache.drill.exec.memory

Memory Allocation, Account and Management See the README.md file in this directory for detailed information about Drill's memory allocation subsystem.

See: Description

Interface Summary

Interface	Description
AllocationReservation	Supports cumulative allocation reservation.
BufferAllocator	Wrapper class to deal with byte buffer allocation.

Class Summary

Class	Description
Accountant	Provides a concurrent way to manage account for memory usage without locking.
AllocationManager	Manages the relationship between one or more allocators and a particular UDLE.
BaseAllocator
BoundsChecking
DrillByteBufAllocator	An extend of AbstractByteBufAllocator that wraps a Drill BufferAllocator.
RootAllocator	The root allocator for using direct memory inside a Drillbit.
RootAllocatorFactory

Enum Summary

Enum	Description
Accountant.AllocationOutcome	Describes the type of outcome that occurred when trying to account for allocation of memory.
BaseAllocator.Verbosity

Exception Summary

Exception	Description
AllocatorClosedException	Exception thrown when a closed BufferAllocator is used.

Package org.apache.drill.exec.memory Description

Memory Allocation, Account and Management See the README.md file in this directory for detailed information about Drill's memory allocation subsystem.