com.alipay.sofa.registry.server.meta.slot.balance

接口 BalancePolicy

所有已知实现类:

NaiveBalancePolicy

public interface BalancePolicy

作者:

chen.zhu

Jan 20, 2021

方法概要

限定符和类型	方法和说明
int	getHighWaterMarkSlotFollowerNums(int average)
int	getHighWaterMarkSlotLeaderNums(int average)
int	getLowWaterMarkSlotFollowerNums(int average) Gets get low water mark of follower slot nums. low watermark means the threshold we could endure with, that once the follower slot numbers on a data-server is under the low water mark, we need to rebalance the slot-table
int	getLowWaterMarkSlotLeaderNums(int average) Gets get low water mark slot leader nums. low watermark means the threshold we could endure with, that once the slot leader numbers on a data-server is under the low water mark, we need to rebalance the slot-table
int	getMaxMoveFollowerSlots() Gets get max move follower slots. max move means the maximum number of slots' followers we are good to migrate per balance time
int	getMaxMoveLeaderSlots() Gets get max move leader slots. max move means the maximum number of slots' leader we are good to migrate per balance time

方法详细资料

getLowWaterMarkSlotLeaderNums

int getLowWaterMarkSlotLeaderNums(int average)

Gets get low water mark slot leader nums. low watermark means the threshold we could endure with, that once the slot leader numbers on a data-server is under the low water mark, we need to rebalance the slot-table

参数:

average - the average

返回:

the get low water mark slot leader nums

getHighWaterMarkSlotLeaderNums

int getHighWaterMarkSlotLeaderNums(int average)

getLowWaterMarkSlotFollowerNums

int getLowWaterMarkSlotFollowerNums(int average)

Gets get low water mark of follower slot nums. low watermark means the threshold we could endure with, that once the follower slot numbers on a data-server is under the low water mark, we need to rebalance the slot-table

参数:

average - the average

返回:

the get low water mark of slot follower nums

getHighWaterMarkSlotFollowerNums

int getHighWaterMarkSlotFollowerNums(int average)

getMaxMoveLeaderSlots

int getMaxMoveLeaderSlots()

Gets get max move leader slots. max move means the maximum number of slots' leader we are good to migrate per balance time

返回:

the get max move leader slots

getMaxMoveFollowerSlots

int getMaxMoveFollowerSlots()

Gets get max move follower slots. max move means the maximum number of slots' followers we are good to migrate per balance time

返回:

the get max move follower slots