[ https://issues.apache.org/jira/browse/SOLR-3141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13211825#comment-13211825 ] 

Jan Høydahl commented on SOLR-3141:
-----------------------------------

I think 4.0 is a good train in which to do this rename, when people will anyway take a thorough new look at all the changes, and most will hopefully discover that they do *not* need forceMerge even if they used optimize before. And I agree, in 4.x, "optimize" should not be a silent NOOP, but instead yell loudly in the logs.

Perhaps an official migration guide on the CMS would be helpful too when 4.0 hits the road. Such a guide would be more in-depth than the upgrading notes in CHANGES. We could have a paragraph about optimize/forceMerge, and another paragraph about softCommit/commitWithin as preferred to explicit commit, which is also a huge mistake many people do, they do over-committing!
                
> Deprecate OPTIMIZE command in Solr
> ----------------------------------
>
>                 Key: SOLR-3141
>                 URL: https://issues.apache.org/jira/browse/SOLR-3141
>             Project: Solr
>          Issue Type: Improvement
>          Components: update
>    Affects Versions: 3.5
>            Reporter: Jan Høydahl
>              Labels: force, optimize
>             Fix For: 3.6
>
>         Attachments: SOLR-3141.patch, SOLR-3141.patch
>
>
> Background: LUCENE-3454 renames optimize() as forceMerge(). Please read that issue first.
> Now that optimize() is rarely necessary anymore, and renamed in Lucene APIs, what should be done with Solr's ancient optimize command?

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