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From "Christine Poerschke (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-8621) solrconfig.xml: deprecate/replace <mergePolicy> with <mergePolicyFactory>
Date Thu, 11 Feb 2016 10:45:18 GMT

    [ https://issues.apache.org/jira/browse/SOLR-8621?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15142552#comment-15142552
] 

Christine Poerschke commented on SOLR-8621:
-------------------------------------------

[~shaie] - thanks for reviewing the latest commit, i'll cherry-pick it to branch_5x and branch_5_5
later today.

No problem about the typo, I had also missed it in the patches and just stumbled across it
when git-grep-ing to see which places still mention mergePolicy-but-not-mergePolicyFactory
in their solrconfig.xml file.

Somewhat but not quite related to MergePolicyFactory here and SortingMergePolicyFactory on
SOLR-5730 - there were a few more {{TestSortingMergePolicy.testForceMergeNotNeeded}} test
failures after LUCENE-7010 and maybe or maybe not similar to LUCENE-7008 test failure - would
you have bandwidth to take a look perhaps at some point?

> 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
>             Fix For: 5.5, master
>
>         Attachments: SOLR-8621-example_contrib_configs.patch, SOLR-8621-example_contrib_configs.patch,
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 left-to-do summary:+
>  * {color:red}WrapperMergePolicyFactory setter logic tweak/mini-bug (and test case){color}
- Christine
>  * Solr Reference Guide changes (directly in Confluence?)
>  * changes to remaining solrconfig.xml
>  ** solr/core/src/test-files/solr/collection1/conf - Christine
>  ** solr/server/solr/configsets
> +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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