ExecutionMemoryPool¶

ExecutionMemoryPool is a MemoryPool.

Creating Instance¶

ExecutionMemoryPool takes the following to be created:

• Lock Object
• MemoryMode (ON_HEAP or OFF_HEAP)

ExecutionMemoryPool is created when:

• MemoryManager is created (and initializes on-heap and off-heap execution memory pools)

Acquiring Memory¶

acquireMemory(
  numBytes: Long,
  taskAttemptId: Long,
  maybeGrowPool: Long => Unit = (additionalSpaceNeeded: Long) => (),
  computeMaxPoolSize: () => Long = () => poolSize): Long

acquireMemory...FIXME

acquireMemory is used when:

• UnifiedMemoryManager is requested to acquire execution memory