程序包 org.apache.iotdb.confignode.manager.load.balancer

类 RegionBalancer

java.lang.Object

org.apache.iotdb.confignode.manager.load.balancer.RegionBalancer

public class RegionBalancer
extends java.lang.Object

The RegionBalancer provides interfaces to generate optimal Region allocation and migration plans

嵌套类概要

嵌套类

修饰符和类型	类	说明
static class	RegionBalancer.RegionGroupAllocatePolicy

构造器概要

构造器

构造器	说明
RegionBalancer(IManager configManager)

方法概要

修饰符和类型	方法	说明
CreateRegionGroupsPlan	genRegionGroupsAllocationPlan(java.util.Map<java.lang.String,java.lang.Integer> allotmentMap, org.apache.iotdb.common.rpc.thrift.TConsensusGroupType consensusGroupType)	Generate a RegionGroups' allocation plan(CreateRegionGroupsPlan)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

RegionBalancer

public RegionBalancer(IManager configManager)

方法详细资料

genRegionGroupsAllocationPlan

public CreateRegionGroupsPlan genRegionGroupsAllocationPlan(java.util.Map<java.lang.String,java.lang.Integer> allotmentMap,
                                                            org.apache.iotdb.common.rpc.thrift.TConsensusGroupType consensusGroupType)
                                                     throws NotEnoughDataNodeException,
                                                            StorageGroupNotExistsException

Generate a RegionGroups' allocation plan(CreateRegionGroupsPlan)

参数:

allotmentMap - Map

consensusGroupType - TConsensusGroupType of the new RegionGroups

返回:

CreateRegionGroupsPlan

抛出:

NotEnoughDataNodeException - When the number of DataNodes is not enough for allocation

StorageGroupNotExistsException - When some StorageGroups don't exist