Package io.datarouter.client.hbase.balancer.imp

Class ConsistentHashBalancer

java.lang.Object

io.datarouter.client.hbase.balancer.BaseHBaseRegionBalancer

io.datarouter.client.hbase.balancer.imp.ConsistentHashBalancer

All Implemented Interfaces:

Callable<Map<DrRegionInfo<?>,org.apache.hadoop.hbase.ServerName>>

public class ConsistentHashBalancer
extends BaseHBaseRegionBalancer

Field Summary

Fields

Modifier and Type	Field	Description
static final Integer	BUCKETS_PER_NODE

Fields inherited from class io.datarouter.client.hbase.balancer.BaseHBaseRegionBalancer

drhRegionList, drhServerList, entityPartitioner, serverByRegion, tableName

Constructor Summary

Constructors

Constructor	Description
ConsistentHashBalancer(String tableName)

Method Summary

Modifier and Type	Method	Description
static SortedMap<Long,org.apache.hadoop.hbase.ServerName>	buildServerHashRing(DrServerList servers, int numBucketsPerNode)
static org.apache.hadoop.hbase.ServerName	calcServerNameForItem(SortedMap<Long,org.apache.hadoop.hbase.ServerName> consistentHashRing, byte[] consistentHashInput)
Map<DrRegionInfo<?>,org.apache.hadoop.hbase.ServerName>	call()

Methods inherited from class io.datarouter.client.hbase.balancer.BaseHBaseRegionBalancer

assertRegionCountsConsistent, getServerByRegionStringForDebug, init

Methods inherited from class java.lang.Object

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

Field Details

BUCKETS_PER_NODE

public static final Integer BUCKETS_PER_NODE

Constructor Details

ConsistentHashBalancer

public ConsistentHashBalancer(String tableName)

Method Details

call

public Map<DrRegionInfo<?>,org.apache.hadoop.hbase.ServerName> call()

buildServerHashRing

public static SortedMap<Long,org.apache.hadoop.hbase.ServerName> buildServerHashRing(DrServerList servers,
 int numBucketsPerNode)

calcServerNameForItem

public static org.apache.hadoop.hbase.ServerName calcServerNameForItem(SortedMap<Long,org.apache.hadoop.hbase.ServerName> consistentHashRing,
 byte[] consistentHashInput)