Package org.apache.iotdb.confignode.manager.partition

Enum RegionGroupStatus

java.lang.Object

java.lang.Enum<RegionGroupStatus>

org.apache.iotdb.confignode.manager.partition.RegionGroupStatus

All Implemented Interfaces:

Serializable, Comparable<RegionGroupStatus>

public enum RegionGroupStatus
extends Enum<RegionGroupStatus>

Enum Constant Summary

Enum Constants

Enum Constant	Description
Available	For strong consistency algorithms, the RegionGroup is considered as Available when the number of Regions in the Running status is greater than half.
Disabled	In scenarios other than the two mentioned above.
Running	All Regions in RegionGroup are in the Running status

Method Summary

Modifier and Type	Method	Description
int	compare(RegionGroupStatus other)	Compare the weight of two RegionGroupStatus.
String	getStatus()
static RegionGroupStatus	parse(String status)
static RegionGroupStatus	valueOf(String name)	Returns the enum constant of this type with the specified name.
static RegionGroupStatus[]	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 Details

Running

public static final RegionGroupStatus Running

All Regions in RegionGroup are in the Running status

Available

public static final RegionGroupStatus Available

For strong consistency algorithms, the RegionGroup is considered as Available when the number of Regions in the Running status is greater than half. For weak consistency algorithms, the RegionGroup is considered as Available when the number of Regions in the Running status is greater than or equal to 1. To avoid the impact of Removing and Adding region status on region group status evaluation, this status, which only occurs during region migration and reconstruction, can be excluded. The denominator uses the number of regions excluding Removing and Adding status, while the numerator uses regions in the Running status, ensuring high availability evaluation remains unaffected.

Disabled

public static final RegionGroupStatus Disabled

In scenarios other than the two mentioned above.

Method Details

values

public static RegionGroupStatus[] values()

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

Returns:

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

valueOf

public static RegionGroupStatus 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

getStatus

public String getStatus()

parse

public static RegionGroupStatus parse(String status)

compare

public int compare(RegionGroupStatus other)

Compare the weight of two RegionGroupStatus.

Running > Available > Discouraged > Disabled