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https://issues.apache.org/jira/browse/SOLR-3141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13211419#comment-13211419
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Uwe Schindler commented on SOLR-3141:
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bq. Another issue that I've seen a couple of customers hit: big memory
increases in the field cache as the number of segments grows. The string index
values are not shared per-segment, and hence in the worst case, 2 times the
number of segments equals almost 2 times the memory for the per-segment
FieldCache entries.
This goes in the same direction as my answer to Mark: With sortMissingLast
support on numerics, numerics as Strings are no longer needed. So the solution
here is to use real numerics.
> 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
>
>
> 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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