com.netflix.dyno.queues.shard

Class ConsistentAWSDynoShardSupplier

java.lang.Object

com.netflix.dyno.queues.shard.ConsistentAWSDynoShardSupplier

All Implemented Interfaces:

com.netflix.dyno.queues.ShardSupplier

public class ConsistentAWSDynoShardSupplier
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
protected com.netflix.dyno.connectionpool.HostSupplier	hs
protected java.lang.String	localRack
protected java.util.Map<java.lang.String,java.lang.String>	rackToShardMap
protected java.lang.String	region

Constructor Summary

Constructors

Constructor and Description
ConsistentAWSDynoShardSupplier(com.netflix.dyno.connectionpool.HostSupplier hs, java.lang.String region, java.lang.String localRack) Dynomite based shard supplier.

Method Summary

Modifier and Type	Method and Description
java.lang.String	getCurrentShard()
java.util.Set<java.lang.String>	getQueueShards()
java.lang.String	getShardForHost(com.netflix.dyno.connectionpool.Host host)
void	setRackToShardMap(java.util.Map<java.lang.String,java.lang.String> rackToShardMapEntries)

Methods inherited from class java.lang.Object

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

Field Detail

hs

protected com.netflix.dyno.connectionpool.HostSupplier hs

region

protected java.lang.String region

localRack

protected java.lang.String localRack

rackToShardMap

protected java.util.Map<java.lang.String,java.lang.String> rackToShardMap

Constructor Detail

ConsistentAWSDynoShardSupplier

public ConsistentAWSDynoShardSupplier(com.netflix.dyno.connectionpool.HostSupplier hs,
                                      java.lang.String region,
                                      java.lang.String localRack)

Dynomite based shard supplier. Keeps the number of shards in parity with the hosts and regions Note: This ensures that all racks use the same shard names. This fixes issues with the now deprecated DynoShardSupplier that would write to the wrong shard if there are cross-region writers/readers.

Parameters:

hs - Host supplier

region - current region

localRack - local rack identifier

Method Detail

setRackToShardMap

public void setRackToShardMap(java.util.Map<java.lang.String,java.lang.String> rackToShardMapEntries)

getCurrentShard

public java.lang.String getCurrentShard()

Specified by:

getCurrentShard in interface com.netflix.dyno.queues.ShardSupplier

getQueueShards

public java.util.Set<java.lang.String> getQueueShards()

Specified by:

getQueueShards in interface com.netflix.dyno.queues.ShardSupplier

getShardForHost

public java.lang.String getShardForHost(com.netflix.dyno.connectionpool.Host host)

Specified by:

getShardForHost in interface com.netflix.dyno.queues.ShardSupplier