[jira] [Commented] (SOLR-2877) SolrInputDocument performance improvements

["Ryan McKinley (Commented) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-2877?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13146516#comment-13146516 ] 

Ryan McKinley commented on SOLR-2877:
-------------------------------------

rather then adding the hash functions to SolrInputDocument, what about just adding a constructor where you can pass in the Map explicilty:
{code:java}
  public SolrInputDocument(Map<String,SolrInputField> fields) {
    _fields = fields;
  }
{code}

This way you could also avoid using LinkedHashMap if that is not necessary



                
> SolrInputDocument performance improvements
> ------------------------------------------
>
>                 Key: SOLR-2877
>                 URL: https://issues.apache.org/jira/browse/SOLR-2877
>             Project: Solr
>          Issue Type: Improvement
>          Components: SearchComponents - other
>    Affects Versions: 3.4
>            Reporter: Ivan Hrytsyuk
>              Labels: SolrInputDocument, capacity, constructor, initial, loadfactor, performance
>             Fix For: 3.5
>
>   Original Estimate: 2h
>  Remaining Estimate: 2h
>
> org.apache.solr.common.SolrInputDocument has only single default constructor.
> Since it's a LinkedHashMap, it's initialised with default initialCapacity=16 and loadFactor=0.75.
> That produces bad performance in situations when your document contains 10000+ different fields.
> org.apache.solr.common.SolrInputDocument class needs to have a constructor that allows to specify initialCapacity and loadFactor arguments.

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