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https://issues.apache.org/jira/browse/SOLR-1931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13177153#comment-13177153
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Erick Erickson commented on SOLR-1931:
--------------------------------------
bq: What if one is looking at a completely optimized index?
I wondered about that myself, and I suspect this would work just as you
indicate, optimizing the index *would* get you the exact unique counts for all
the fields. Which conveniently leaves it up to the user to decide just how
necessary getting exact information is....
Here's a code snippet from Muir (thanks!!!) that we should preserve, 4.x only.
new ReaderUtil.Gather(reader) {
@Override
protected void add(int base, IndexReader r) throws IOException {
System.out.println("segment: " + r.toString());
FieldsEnum e = r.fields().iterator();
String field;
while ((field = e.next()) != null) {
System.out.println("\t" + field + ": " +
e.terms().getUniqueTermCount());
}
}
}.run();
segment: _34(4.0):C1802000/89498
body: 4886489
date: 136729
datenum: 631685
group100: 100
group100K: 100000
group10K: 10000
group1M: 999999
groupblock: 180200
groupend: 1
id: 1802000
timesecnum: 73524
title: 139038
titleTokenized: 73144
segment: _67(4.0):C1802000/89561
body: 4985143
> Schema Browser does not scale with large indexes
> ------------------------------------------------
>
> Key: SOLR-1931
> URL: https://issues.apache.org/jira/browse/SOLR-1931
> Project: Solr
> Issue Type: Improvement
> Components: web gui
> Affects Versions: 1.4
> Reporter: Lance Norskog
> Priority: Minor
>
> The Schema Browser JSP by default causes the Luke handler to "scan the
> world". In large indexes this make the UI useless.
> On an index with 64m documents & 8gb of disk space, the Schema Browser took 6
> minutes to open and hogged all disk I/O, making Solr useless.
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