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From "Shai Erera (JIRA)" <>
Subject [jira] Commented: (LUCENE-1720) TimeLimitedIndexReader and associated utility class
Date Thu, 11 Feb 2010 14:36:28 GMT


Shai Erera commented on LUCENE-1720:

BTW, perhaps to allow even finer granularity and precision, we should move to use nanoTime()?
the given timeout can be in ms, but the TimeoutThread can work w/ nanoTime() ... what do you

> TimeLimitedIndexReader and associated utility class
> ---------------------------------------------------
>                 Key: LUCENE-1720
>                 URL:
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: Index
>            Reporter: Mark Harwood
>            Assignee: Mark Harwood
>            Priority: Minor
>         Attachments:,,,, LUCENE-1720.patch,,,,
> An alternative to TimeLimitedCollector that has the following advantages:
> 1) Any reader activity can be time-limited rather than just single searches e.g. the
document retrieve phase.
> 2) Times out faster (i.e. runaway queries such as fuzzies detected quickly before last
"collect" stage of query processing)
> Uses new utility timeout class that is independent of IndexReader.
> Initial contribution includes a performance test class but not had time as yet to work
up a formal Junit test.
> TimeLimitedIndexReader is coded as JDK1.5 but can easily be undone.

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