org.apache.hudi.index

Enum HoodieIndex.BucketIndexEngineType

java.lang.Object

java.lang.Enum<HoodieIndex.BucketIndexEngineType>

org.apache.hudi.index.HoodieIndex.BucketIndexEngineType

All Implemented Interfaces:

Serializable, Comparable<HoodieIndex.BucketIndexEngineType>

Enclosing class:

HoodieIndex<I,O>

@EnumDescription(value="Determines the type of bucketing or hashing to use when `hoodie.index.type` is set to `BUCKET`.")
public static enum HoodieIndex.BucketIndexEngineType
extends Enum<HoodieIndex.BucketIndexEngineType>

Enum Constant Summary

Enum Constants

Enum Constant and Description
CONSISTENT_HASHING
SIMPLE

Method Summary

Modifier and Type	Method and Description
static HoodieIndex.BucketIndexEngineType	valueOf(String name) Returns the enum constant of this type with the specified name.
static HoodieIndex.BucketIndexEngineType[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

SIMPLE

@EnumFieldDescription(value="Uses a fixed number of buckets for file groups which cannot shrink or expand. This works for both COW and MOR tables.")
public static final HoodieIndex.BucketIndexEngineType SIMPLE

CONSISTENT_HASHING

@EnumFieldDescription(value="Supports dynamic number of buckets with bucket resizing to properly size each bucket. This solves potential data skew problem where one bucket can be significantly larger than others in SIMPLE engine type. This only works with MOR tables.")
public static final HoodieIndex.BucketIndexEngineType CONSISTENT_HASHING

Method Detail

values

public static HoodieIndex.BucketIndexEngineType[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (HoodieIndex.BucketIndexEngineType c : HoodieIndex.BucketIndexEngineType.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static HoodieIndex.BucketIndexEngineType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null