You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@lucene.apache.org by "Greg Tarr (JIRA)" <ji...@apache.org> on 2010/05/17 16:58:42 UTC
[jira] Commented: (LUCENE-1720) TimeLimitedIndexReader and
associated utility class
[ https://issues.apache.org/jira/browse/LUCENE-1720?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12868246#action_12868246 ]
Greg Tarr commented on LUCENE-1720:
-----------------------------------
We're using lucene in a large distributed search environment and we would hugely benefit from this patch being available in the main Lucene build. We were formerly using timeouts as part of our search broker, but it would make much more sense for these timeouts to operate at the IndexReader level so that we can prevent hanging threads.
> TimeLimitedIndexReader and associated utility class
> ---------------------------------------------------
>
> Key: LUCENE-1720
> URL: https://issues.apache.org/jira/browse/LUCENE-1720
> Project: Lucene - Java
> Issue Type: New Feature
> Components: Index
> Reporter: Mark Harwood
> Assignee: Mark Harwood
> Priority: Minor
> Attachments: ActivityTimedOutException.java, ActivityTimeMonitor.java, ActivityTimeMonitor.java, ActivityTimeMonitor.java, LUCENE-1720.patch, LUCENE-1720.patch, Lucene-1720.patch, Lucene-1720.patch, LUCENE-1720.patch, TestTimeLimitedIndexReader.java, TestTimeLimitedIndexReader.java, TimeLimitedIndexReader.java, TimeLimitedIndexReader.java
>
>
> 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.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org