[jira] [Created] (SOLR-4409) Collection creation should succeed if number of shards == number of nodes, regardless of replicationFactor.

["Michael Della Bitta (JIRA)" <ji...@apache.org>]

Michael Della Bitta created SOLR-4409:
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             Summary: Collection creation should succeed if number of shards == number of nodes, regardless of replicationFactor.
                 Key: SOLR-4409
                 URL: https://issues.apache.org/jira/browse/SOLR-4409
             Project: Solr
          Issue Type: Bug
          Components: SolrCloud
    Affects Versions: 4.1
         Environment: 3 node SolrCloud using 4.1 and Tomcat 7, external 3 node zookeeper, running in AWS.
            Reporter: Michael Della Bitta
            Priority: Minor


I was expecting that manually calling the Collections API to create a collection with the replicationFactor set to a value higher than numShards/number of nodes would create the collection with no replicants and cap the overall possible number of replicants when the cluster grows larger.

Instead I received this message:

"SEVERE: Cannot create collection $foo. Value of maxShardsPerNode is 1, and the number of live nodes is 3. This allows a maximum of 3 to be created. Value of numShards is 3 and value of replicationFactor is 2. This requires 6 shards to be created (higher than the allowed number)"

Not sure what the thinking behind this is, and maybe I'm just not getting it, but I would assume collection creation would succeed if the collection is a valid collection.

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