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From "Digy (JIRA)" <j...@apache.org>
Subject [Lucene.Net] [jira] [Resolved] (LUCENENET-442) ParallelMultiSearcher threads don't handle all exceptions
Date Mon, 05 Sep 2011 18:36:10 GMT

     [ https://issues.apache.org/jira/browse/LUCENENET-442?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Digy resolved LUCENENET-442.
----------------------------

    Resolution: Fixed
      Assignee: Digy

Fixed for 2.9.4 & 2.9.4g

> ParallelMultiSearcher threads don't handle all exceptions
> ---------------------------------------------------------
>
>                 Key: LUCENENET-442
>                 URL: https://issues.apache.org/jira/browse/LUCENENET-442
>             Project: Lucene.Net
>          Issue Type: Bug
>          Components: Lucene.Net Core
>    Affects Versions: Lucene.Net 2.9.2
>            Reporter: Andy Twidle
>            Assignee: Digy
>             Fix For: Lucene.Net 2.9.4, Lucene.Net 2.9.4g
>
>         Attachments: LUCENENET-442.patch
>
>
> The ParallelMultiSearcher doesn't allow non-IOException exceptions to be managed by the
calling application.  
> LUCENENET-388 worked around one specific example of this, but any genuine Lucene exception
(eg: BooleanQuery.TooManyClauses) will also fall foul of this pattern.
> In our specific instance we could treat the symptoms and up the max clause count, but
I'm sure there will be more.  Could the System.IOException be generalised to System.Exception?
 Or would that be too much deviation from the Java code base?
> --
> Example stack trace of an exception thrown by a Searcher executed:
> Framework Version: v4.0.30319
> Description: The process was terminated due to an unhandled exception.
> Exception Info: Lucene.Net.Search.BooleanQuery+TooManyClauses
> Stack:
>    at Lucene.Net.Search.BooleanQuery.Add(Lucene.Net.Search.BooleanClause)
>    at Lucene.Net.Search.BooleanQuery.Add(Lucene.Net.Search.Query, Occur)
>    at Lucene.Net.Search.PrefixQuery.Rewrite(Lucene.Net.Index.IndexReader)
>    at Lucene.Net.Search.BooleanQuery.Rewrite(Lucene.Net.Index.IndexReader)
>    at Lucene.Net.Search.IndexSearcher.Rewrite(Lucene.Net.Search.Query)
>    at Lucene.Net.Search.Query.Weight(Lucene.Net.Search.Searcher)
>    at Lucene.Net.Search.Searcher.CreateWeight(Lucene.Net.Search.Query)
>    at Lucene.Net.Search.Searcher.Search(Lucene.Net.Search.Query, Lucene.Net.Search.Filter,
Lucene.Net.Search.HitCollector)
>    at Lucene.Net.Search.Searcher.Search(Lucene.Net.Search.Query, Lucene.Net.Search.HitCollector)
>    at Lucene.Net.Search.QueryWrapperFilter.Bits(Lucene.Net.Index.IndexReader)
>    at Lucene.Net.Search.CachingWrapperFilter.Bits(Lucene.Net.Index.IndexReader)
>    at Lucene.Net.Search.IndexSearcher.Search(Lucene.Net.Search.Weight, Lucene.Net.Search.Filter,
Lucene.Net.Search.HitCollector)
>    at Lucene.Net.Search.IndexSearcher.Search(Lucene.Net.Search.Weight, Lucene.Net.Search.Filter,
Int32)
>    at Lucene.Net.Search.MultiSearcherThread.Run()
>    at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback,
System.Object, Boolean)
>    at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback,
System.Object)
>    at System.Threading.ThreadHelper.ThreadStart()

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