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https://issues.apache.org/jira/browse/LUCENE-997?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12555190
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Timo Nentwig commented on LUCENE-997:
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IMHO it definitely should be part of the core. Being able to control the
runtime of queries/your ressources is crucial for every live system and I
really wonder this it has taken so long to address this.
Otherwise I totally agree with Navdav: that Hits thingie is nice and fine for
simple full-text queries but as soon as things become somewhat more complex you
don't get around writing your own HitCollector (and do stuff like Facets).
I also strongly agree that the timeout HC should be implemented as an decorator
(what's been called "front-end" here), I just quickly wrote an example and
attached it (no, I'm not happy throwing an runtime exception either):
MyHitCollector hc = new MyHitCollector();
s.search(q, null, HitCollectorTimeoutDecorator.decorate( hc, 10 ) );
And finally, why return partial results? I don't think that this is reasonable.
BTW I'm not sure whether volatile in the timer thread is really working
reliably in 1.4...
> Add search timeout support to Lucene
> ------------------------------------
>
> Key: LUCENE-997
> URL: https://issues.apache.org/jira/browse/LUCENE-997
> Project: Lucene - Java
> Issue Type: New Feature
> Reporter: Sean Timm
> Priority: Minor
> Attachments: HitCollectorTimeoutDecorator.java,
> LuceneTimeoutTest.java, timeout.patch, timeout.patch
>
>
> This patch is based on Nutch-308.
> This patch adds support for a maximum search time limit. After this time is
> exceeded, the search thread is stopped, partial results (if any) are returned
> and the total number of results is estimated.
> This patch tries to minimize the overhead related to time-keeping by using a
> version of safe unsynchronized timer.
> This was also discussed in an e-mail thread.
> http://www.nabble.com/search-timeout-tf3410206.html#a9501029
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