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From "Christine Poerschke (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SOLR-8621) solrconfig.xml: deprecate/replace <mergePolicy> with <mergePolicyFactory>
Date Tue, 09 Feb 2016 19:36:18 GMT

     [ https://issues.apache.org/jira/browse/SOLR-8621?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Christine Poerschke updated SOLR-8621:
--------------------------------------
    Description: 
*<mergePolicyFactory> end-user benefits:*
* Lucene's UpgradeIndexMergePolicy can be configured in Solr
* (with SOLR-5730) Lucene's SortingMergePolicy can be configured in Solr
* customisability: arbitrary merge policies including wrapping/nested merge policies can be
created and configured

*(proposed) roadmap:*
* solr 5.5 introduces <mergePolicyFactory> support
* solr 5.5(\?) deprecates (but maintains) <mergePolicy> support
* solr 6.0(\?) removes <mergePolicy> support 

+work-in-progress summary:+
 * main code changes have been committed to master and branch_5x
 * {color:red}further small code change required:{color} MergePolicyFactory constructor or
MergePolicyFactory.getMergePolicy method to take IndexSchema argument (e.g. for use by SortingMergePolicyFactory
being added under related SOLR-5730)
 * Solr Reference Guide changes (directly in Confluence?)
 * changes to remaining solrconfig.xml
 ** solr/core/src/test-files/solr/collection1/conf - Christine
 ** solr/contrib
 ** solr/example

+open question:+
 * Do we want to error if luceneMatchVersion >= 5.5 and deprecated mergePolicy/mergeFactor/maxMergeDocs
are used? See [~hossman]'s comment on Feb 1st. The code as-is permits mergePolicy irrespective
of luceneMatchVersion, I think.

  was:
*<mergePolicyFactory> end-user benefits:*
* Lucene's UpgradeIndexMergePolicy can be configured in Solr
* (with SOLR-5730) Lucene's SortingMergePolicy can be configured in Solr
* customisability: arbitrary merge policies including wrapping/nested merge policies can be
created and configured

*(proposed) roadmap:*
* solr 5.5 introduces <mergePolicyFactory> support
* solr 5.5(\?) deprecates (but maintains) <mergePolicy> support
* solr 6.0(\?) removes <mergePolicy> support 

+work-in-progress git branch:+ [master-solr-8621|https://github.com/apache/lucene-solr/tree/master-solr-8621]



> solrconfig.xml: deprecate/replace <mergePolicy> with <mergePolicyFactory>
> -------------------------------------------------------------------------
>
>                 Key: SOLR-8621
>                 URL: https://issues.apache.org/jira/browse/SOLR-8621
>             Project: Solr
>          Issue Type: Task
>            Reporter: Christine Poerschke
>            Assignee: Christine Poerschke
>         Attachments: SOLR-8621.patch, explicit-merge-auto-set.patch
>
>
> *<mergePolicyFactory> end-user benefits:*
> * Lucene's UpgradeIndexMergePolicy can be configured in Solr
> * (with SOLR-5730) Lucene's SortingMergePolicy can be configured in Solr
> * customisability: arbitrary merge policies including wrapping/nested merge policies
can be created and configured
> *(proposed) roadmap:*
> * solr 5.5 introduces <mergePolicyFactory> support
> * solr 5.5(\?) deprecates (but maintains) <mergePolicy> support
> * solr 6.0(\?) removes <mergePolicy> support 
> +work-in-progress summary:+
>  * main code changes have been committed to master and branch_5x
>  * {color:red}further small code change required:{color} MergePolicyFactory constructor
or MergePolicyFactory.getMergePolicy method to take IndexSchema argument (e.g. for use by
SortingMergePolicyFactory being added under related SOLR-5730)
>  * Solr Reference Guide changes (directly in Confluence?)
>  * changes to remaining solrconfig.xml
>  ** solr/core/src/test-files/solr/collection1/conf - Christine
>  ** solr/contrib
>  ** solr/example
> +open question:+
>  * Do we want to error if luceneMatchVersion >= 5.5 and deprecated mergePolicy/mergeFactor/maxMergeDocs
are used? See [~hossman]'s comment on Feb 1st. The code as-is permits mergePolicy irrespective
of luceneMatchVersion, I think.



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