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Posted to dev@lucene.apache.org by "Noble Paul (JIRA)" <ji...@apache.org> on 2018/06/19 03:48:00 UTC
[jira] [Updated] (SOLR-12495) Make it possible to evenly distribute
replicas
[ https://issues.apache.org/jira/browse/SOLR-12495?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Noble Paul updated SOLR-12495:
------------------------------
Description:
Support a new function value for {{replica= "#MINIMUM"}}
{{#MINIMUM}} means the minimum computed value for the given configuration
the value of replica will be calculated as {{<= Math.ceil(number_of_replicas/number_of_valid_nodes) }}
*example 1:*
{code:java}
{"replica" : "#MINIMUM" , "shard" : "#EACH" , "node" : "#ANY"}
{code}
*case 1* : nodes=3, replicationFactor=4
the value of replica will be calculated as {{Math.ceil(4/3) = 2}}
current state : nodes=3, replicationFactor=2
this is equivalent to the hard coded rule
{code:java}
{"replica" : "<3" , "shard" : "#EACH" , "node" : "#ANY"}
{code}
*case 2* :
current state : nodes=3, replicationFactor=2
this is equivalent to the hard coded rule
{code:java}
{"replica" : "<3" , "shard" : "#EACH" , "node" : "#ANY"}
{code}
*example:2*
{code}
{"replica" : "#MINIMUM" , "node" : "#ANY"}{code}
case 1: numShards = 2, replicationFactor=3, nodes = 5
this is equivalent to the hard coded rule
{code:java}
{"replica" : "<3" , "node" : "#ANY"}
{code}
*example:3*
{code}
{"replica" : "<2" , "shard" : "#EACH" , "port" : "8983"}{code}
case 1: {{replicationFactor=3, nodes with port 8983 = 2}}
this is equivalent to the hard coded rule
{code}
{"replica" : "<3" , "shard" : "#EACH" , "port" : "8983"}{code}
was:
Support a new function value for {{replica= "#MINIMUM"}}
minimum means the minimum computed value for the given configuration
the value of replica will be calculated as {{<= Math.ceil(number_of_replicas/number_of_valid_nodes) }}
*example 1:*
{code:java}
{"replica" : "#MINIMUM" , "shard" : "#EACH" , "node" : "#ANY"}
{code}
*case 1* : nodes=3, replicationFactor=4
the value of replica will be calculated as {{Math.ceil(4/3) = 2}}
current state : nodes=3, replicationFactor=2
this is equivalent to the hard coded rule
{code:java}
{"replica" : "<3" , "shard" : "#EACH" , "node" : "#ANY"}
{code}
*case 2* :
current state : nodes=3, replicationFactor=2
this is equivalent to the hard coded rule
{code:java}
{"replica" : "<3" , "shard" : "#EACH" , "node" : "#ANY"}
{code}
*example:2*
{code:json}
{"replica" : "#MINIMUM" , "node" : "#ANY"}{code}
case 1: numShards = 2, replicationFactor=3, nodes = 5
this is equivalent to the hard coded rule
{code:java}
{"replica" : "<3" , "node" : "#ANY"}
{code}
*example:3*
{code:json}
{"replica" : "<2" , "shard" : "#EACH" , "port" : "8983"}{code}
case 1: {{replicationFactor=3, nodes with port 8983 = 2}}
this is equivalent to the hard coded rule
{code:json}
{"replica" : "<3" , "shard" : "#EACH" , "port" : "8983"}{code}
> Make it possible to evenly distribute replicas
> ----------------------------------------------
>
> Key: SOLR-12495
> URL: https://issues.apache.org/jira/browse/SOLR-12495
> Project: Solr
> Issue Type: Sub-task
> Security Level: Public(Default Security Level. Issues are Public)
> Components: AutoScaling
> Reporter: Noble Paul
> Priority: Major
>
> Support a new function value for {{replica= "#MINIMUM"}}
> {{#MINIMUM}} means the minimum computed value for the given configuration
> the value of replica will be calculated as {{<= Math.ceil(number_of_replicas/number_of_valid_nodes) }}
> *example 1:*
> {code:java}
> {"replica" : "#MINIMUM" , "shard" : "#EACH" , "node" : "#ANY"}
> {code}
> *case 1* : nodes=3, replicationFactor=4
> the value of replica will be calculated as {{Math.ceil(4/3) = 2}}
> current state : nodes=3, replicationFactor=2
> this is equivalent to the hard coded rule
> {code:java}
> {"replica" : "<3" , "shard" : "#EACH" , "node" : "#ANY"}
> {code}
> *case 2* :
> current state : nodes=3, replicationFactor=2
> this is equivalent to the hard coded rule
> {code:java}
> {"replica" : "<3" , "shard" : "#EACH" , "node" : "#ANY"}
> {code}
> *example:2*
> {code}
> {"replica" : "#MINIMUM" , "node" : "#ANY"}{code}
> case 1: numShards = 2, replicationFactor=3, nodes = 5
> this is equivalent to the hard coded rule
> {code:java}
> {"replica" : "<3" , "node" : "#ANY"}
> {code}
> *example:3*
> {code}
> {"replica" : "<2" , "shard" : "#EACH" , "port" : "8983"}{code}
> case 1: {{replicationFactor=3, nodes with port 8983 = 2}}
> this is equivalent to the hard coded rule
> {code}
> {"replica" : "<3" , "shard" : "#EACH" , "port" : "8983"}{code}
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