Package org.elasticsearch.action.admin.indices.shrink

Class ResizeNumberOfShardsCalculator.CloneShardsCalculator

java.lang.Object

org.elasticsearch.action.admin.indices.shrink.ResizeNumberOfShardsCalculator.CloneShardsCalculator

All Implemented Interfaces:

ResizeNumberOfShardsCalculator

Enclosing interface:

ResizeNumberOfShardsCalculator

public static class ResizeNumberOfShardsCalculator.CloneShardsCalculator
extends Object
implements ResizeNumberOfShardsCalculator

Nested Class Summary

Nested classes/interfaces inherited from interface org.elasticsearch.action.admin.indices.shrink.ResizeNumberOfShardsCalculator

ResizeNumberOfShardsCalculator.CloneShardsCalculator, ResizeNumberOfShardsCalculator.ShrinkShardsCalculator, ResizeNumberOfShardsCalculator.SplitShardsCalculator

Constructor Summary

Constructors

Constructor	Description
CloneShardsCalculator()

Method Summary

Modifier and Type	Method	Description
int	calculate(Integer numberOfShards, ByteSizeValue maxPrimaryShardSize, IndexMetadata sourceMetadata)	Calculates the target number of shards based on the parameters of the request
void	validate(int numberOfShards, IndexMetadata sourceMetadata)	Validates the target number of shards based on the operation.

Methods inherited from class java.lang.Object

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

Constructor Details

CloneShardsCalculator

public CloneShardsCalculator()

Method Details

calculate

public int calculate(Integer numberOfShards,
 ByteSizeValue maxPrimaryShardSize,
 IndexMetadata sourceMetadata)

Description copied from interface: ResizeNumberOfShardsCalculator

Calculates the target number of shards based on the parameters of the request

Specified by:

calculate in interface ResizeNumberOfShardsCalculator

Parameters:

numberOfShards - requested number of shards or null if it was not provided

maxPrimaryShardSize - requested max primary shard size or null if it was not provided

sourceMetadata - the index metadata of the source index

Returns:

the number of shards for the target index

validate

public void validate(int numberOfShards,
 IndexMetadata sourceMetadata)

Description copied from interface: ResizeNumberOfShardsCalculator

Validates the target number of shards based on the operation. For example, in the case of SHRINK it will check if the doc count per shard is within limits and in the other opetations it will ensure we get the right exceptions if the number of shards is wrong or less than etc.

Specified by:

validate in interface ResizeNumberOfShardsCalculator

Parameters:

numberOfShards - the number of shards the target index is going to have

sourceMetadata - the index metadata of the source index