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https://issues.apache.org/jira/browse/LUCENE-2171?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uwe Schindler updated LUCENE-2171:
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Fix Version/s: (was: 4.3)
4.4
> Over synchronization for read-only index readers in SegmentTermDocs
> -------------------------------------------------------------------
>
> Key: LUCENE-2171
> URL: https://issues.apache.org/jira/browse/LUCENE-2171
> Project: Lucene - Core
> Issue Type: Improvement
> Components: core/search
> Affects Versions: 2.9.1, 3.0
> Reporter: Jayson Minard
> Priority: Minor
> Fix For: 4.4
>
>
> In SegmentTermDocs constructor (from 2.9.1)
> {code}
> 46 protected SegmentTermDocs(SegmentReader parent) {
> 47 this.parent = parent;
> 48 this.freqStream = (IndexInput) parent.core.freqStream.clone();
> 49 synchronized (parent) {
> 50 this.deletedDocs = parent.deletedDocs;
> 51 }
> 52 this.skipInterval = parent.core.getTermsReader().getSkipInterval();
> 53 this.maxSkipLevels =
> parent.core.getTermsReader().getMaxSkipLevels();
> 54 }
> {code}
> The synchronization on "parent" for accessing deletedDocs is unnecessary on
> readonly indexes. If that access was moved into the SegmentReader then it
> could be protected there by default and overridden in ReadonlySegmentReader.
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