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From "Po Rui (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SOLR-4015) the collection create AIP may create a collection that user not expected when the solr-nodes number less than the request collection's replicas number
Date Tue, 30 Oct 2012 08:20:12 GMT
Po Rui created SOLR-4015:
----------------------------

             Summary: the collection create AIP may create a collection that user not expected
when the solr-nodes number less than the request collection's replicas number 
                 Key: SOLR-4015
                 URL: https://issues.apache.org/jira/browse/SOLR-4015
             Project: Solr
          Issue Type: Bug
    Affects Versions: 4.0, 4.0-BETA
            Reporter: Po Rui
             Fix For: 4.0, 4.0-BETA


the collection create AIP may create a collection that user not expected when the solr-nodes
number less than the request collection's replicas number.EX. the cluster have 5 avalaible
solr-nodes. than user want create a collection with API param "numShards=2&numReplicas=2".
this will lead to a collection contained 2 shards but one own 2 replicas and another own 1
replica. More serious, this will lead a collection loss one shard while the API param is "numShards=3&numReplicas=2".
this will confuse the user. this incomplete collection will confuse the user. so we should
discard the  colletion create action while the numLivedNode < numShards * (numReplicas
+ 1)

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