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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (NUTCH-2585) NPE in TrieStringMatcher
Date Mon, 06 May 2019 15:07:00 GMT

    [ https://issues.apache.org/jira/browse/NUTCH-2585?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16833898#comment-16833898
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ASF GitHub Bot commented on NUTCH-2585:
---------------------------------------

sebastian-nagel commented on pull request #452: NUTCH-2585 trie string matcher
URL: https://github.com/apache/nutch/pull/452
 
 
   
 
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> NPE in TrieStringMatcher
> ------------------------
>
>                 Key: NUTCH-2585
>                 URL: https://issues.apache.org/jira/browse/NUTCH-2585
>             Project: Nutch
>          Issue Type: Bug
>    Affects Versions: 1.14
>            Reporter: Markus Jelsma
>            Priority: Major
>             Fix For: 1.16
>
>
> Stumbled on this one just now:
> {code}
> 2018-05-25 14:29:31,844 INFO [FetcherThread] org.apache.nutch.fetcher.FetcherThread:
FetcherThread 42 fetch of http://www.ndcmediagroep.nl/wp-content/uploads/2017/03/Leaflet-Noflik-Wenje.pdf
failed with: java.lang.NullPointerException
> 	at org.apache.nutch.util.TrieStringMatcher$TrieNode.getChild(TrieStringMatcher.java:107)
> 	at org.apache.nutch.util.SuffixStringMatcher.shortestMatch(SuffixStringMatcher.java:74)
> 	at org.apache.nutch.urlfilter.suffix.SuffixURLFilter.filter(SuffixURLFilter.java:164)
> 	at org.apache.nutch.net.URLFilters.filter(URLFilters.java:43)
> 	at org.apache.nutch.fetcher.FetcherThread.handleRedirect(FetcherThread.java:487)
> 	at org.apache.nutch.fetcher.FetcherThread.run(FetcherThread.java:404)
> {code}
> Edit - added on 1 may 2019, i got a slightly different strack trace and using PrefixURLFilter
this time:
> {code}
> 2019-05-01 08:50:07,282 INFO [FetcherThread] org.apache.nutch.fetcher.FetcherThread:
FetcherThread 38 fetch of https://kanaalstreek.nl/fzh/2018/06/04/vijf-maal-goud-voor-pegasus-op-nk
failed with: java.lang.NullPointerException
> 	at org.apache.nutch.util.TrieStringMatcher$TrieNode.getChild(TrieStringMatcher.java:107)
> 	at org.apache.nutch.util.PrefixStringMatcher.shortestMatch(PrefixStringMatcher.java:79)
> 	at org.apache.nutch.urlfilter.prefix.PrefixURLFilter.filter(PrefixURLFilter.java:73)
> 	at org.apache.nutch.net.URLFilters.filter(URLFilters.java:43)
> 	at org.apache.nutch.fetcher.FetcherThread.handleRedirect(FetcherThread.java:487)
> 	at org.apache.nutch.fetcher.FetcherThread.run(FetcherThread.java:404)
> {code}



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