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https://issues.apache.org/jira/browse/SOLR-7733?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16190203#comment-16190203
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Erick Erickson commented on SOLR-7733:
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It turns out that optimize is actually worse than I thought. See the extended
discussion at LUCENE-7976, but the short form is once you start optimizing, you
better always optimize or live with lots of deleted docs.
TieredMergePolicy has a 5G default max merged segment size. Now say you
optimize into a single 100G segment. That 100G segment won't be eligible for
merging until it has < 2.5G "live" docs.
Which makes me favor the pop-up box with lots of warnings in it about how you
better understand the consequences before using this option.
> remove/rename "optimize" references in the UI.
> ----------------------------------------------
>
> Key: SOLR-7733
> URL: https://issues.apache.org/jira/browse/SOLR-7733
> Project: Solr
> Issue Type: Improvement
> Components: Admin UI
> Affects Versions: 5.3, 6.0
> Reporter: Erick Erickson
> Assignee: Upayavira
> Priority: Minor
> Attachments: SOLR-7733.patch
>
>
> Since optimizing indexes is kind of a special circumstance thing, what do we
> think about removing (or renaming) optimize-related stuff on the core admin
> and core overview pages? The "optimize" button is already gone from the core
> admin screen (was this intentional?).
> My personal feeling is that we should remove this entirely as it's too easy
> to think "Of course I want my index optimized" and "look, this screen says my
> index isn't optimized, that must mean I should optimize it".
> The core admin screen and the core overview page both have an "optimized"
> checkmark, I propose just removing it from the "overview" page and on the
> "core admin" page changing it to "Segment Count #". NOTE: the "overview" page
> already has a "Segment Count" entry.
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