Module org.elasticsearch.server

Package org.elasticsearch.cluster.routing.allocation.allocator

Class ShardRelocationOrder.DefaultOrder

java.lang.Object

org.elasticsearch.cluster.routing.allocation.allocator.ShardRelocationOrder.DefaultOrder

All Implemented Interfaces:

ShardRelocationOrder

Enclosing interface:

ShardRelocationOrder

public static class ShardRelocationOrder.DefaultOrder
extends Object
implements ShardRelocationOrder

Nested Class Summary

Nested classes/interfaces inherited from interface org.elasticsearch.cluster.routing.allocation.allocator.ShardRelocationOrder

ShardRelocationOrder.DefaultOrder, ShardRelocationOrder.Ordering

Constructor Summary

Constructors

Constructor	Description
DefaultOrder()

Method Summary

Modifier and Type	Method	Description
Iterator<ShardRouting>	forBalancing(RoutingAllocation allocation, String nodeId)	Node's shards are ordered from data stream read indices, to regular indices and lastly to data stream write indices.
Iterator<ShardRouting>	forNecessaryMoves(RoutingAllocation allocation, String nodeId)	Node's shards are ordered from data stream write indices, to regular indices and lastly to data stream read indices.

Methods inherited from class java.lang.Object

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

Constructor Details

DefaultOrder

public DefaultOrder()

Method Details

forNecessaryMoves

public Iterator<ShardRouting> forNecessaryMoves(RoutingAllocation allocation,
 String nodeId)

Node's shards are ordered from data stream write indices, to regular indices and lastly to data stream read indices. In case of the necessary shard movement, such shards will move first. This might be useful in case of the timeout for the node shutdown.

Specified by:

forNecessaryMoves in interface ShardRelocationOrder

forBalancing

public Iterator<ShardRouting> forBalancing(RoutingAllocation allocation,
 String nodeId)

Node's shards are ordered from data stream read indices, to regular indices and lastly to data stream write indices. This is to minimize the impact of relocations on shards with active writes in case of balancing.

Specified by:

forBalancing in interface ShardRelocationOrder