class StorageLevel extends Externalizable
:: DeveloperApi :: Flags for controlling the storage of an RDD. Each StorageLevel records whether to use memory, or ExternalBlockStore, whether to drop the RDD to disk if it falls out of memory or ExternalBlockStore, whether to keep the data in memory in a serialized format, and whether to replicate the RDD partitions on multiple nodes.
The org.apache.spark.storage.StorageLevel singleton object contains some static constants
for commonly useful storage levels. To create your own storage level object, use the
factory method of the singleton object (StorageLevel(...)).
- Annotations
- @DeveloperApi()
- Source
- StorageLevel.scala
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- new StorageLevel()
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- final def !=(arg0: Any): Boolean
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- final def ==(arg0: Any): Boolean
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- final def asInstanceOf[T0]: T0
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- def clone(): StorageLevel
- Definition Classes
- StorageLevel → AnyRef
- def description: String
- def deserialized: Boolean
- final def eq(arg0: AnyRef): Boolean
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- def equals(other: Any): Boolean
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- StorageLevel → AnyRef → Any
- final def getClass(): Class[_ <: AnyRef]
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- def hashCode(): Int
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- StorageLevel → AnyRef → Any
- final def isInstanceOf[T0]: Boolean
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- def isValid: Boolean
- final def ne(arg0: AnyRef): Boolean
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- final def notify(): Unit
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- final def notifyAll(): Unit
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- @IntrinsicCandidate() @native()
- def readExternal(in: ObjectInput): Unit
- Definition Classes
- StorageLevel → Externalizable
- def replication: Int
- final def synchronized[T0](arg0: => T0): T0
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- def toInt: Int
- def toString(): String
- Definition Classes
- StorageLevel → AnyRef → Any
- def useDisk: Boolean
- def useMemory: Boolean
- def useOffHeap: Boolean
- final def wait(arg0: Long, arg1: Int): Unit
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- final def wait(arg0: Long): Unit
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- final def wait(): Unit
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- def writeExternal(out: ObjectOutput): Unit
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- StorageLevel → Externalizable
Deprecated Value Members
- def finalize(): Unit
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- protected[lang]
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- @throws(classOf[java.lang.Throwable]) @Deprecated
- Deprecated
(Since version 9)