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Posted to dev@nutch.apache.org by "Remco Verhoef (JIRA)" <ji...@apache.org> on 2007/12/30 17:31:43 UTC
[jira] Updated: (NUTCH-597) Fetcher2 -
java.lang.NullPointerException when host does not exist and
fetcher.threads.per.host.by.ip is set to true causes threads to finish.
[ https://issues.apache.org/jira/browse/NUTCH-597?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Remco Verhoef updated NUTCH-597:
--------------------------------
Attachment: fetcher2.java.patch
Contains the patch code for Fetcher2.java.
> Fetcher2 - java.lang.NullPointerException when host does not exist and fetcher.threads.per.host.by.ip is set to true causes threads to finish.
> ----------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: NUTCH-597
> URL: https://issues.apache.org/jira/browse/NUTCH-597
> Project: Nutch
> Issue Type: Bug
> Components: fetcher
> Affects Versions: 1.0.0
> Environment: Debian
> Reporter: Remco Verhoef
> Attachments: fetcher2.java.patch
>
>
> When fetcher.threads.per.host.by.ip is set to true the following exception is thrown when the host does not exist. FetchItem.create returns null when it is not able to resolve the host address when it is redirecting.
> 2007-12-30 15:34:42,720 WARN fetcher.Fetcher2 - Unable to resolve: {url} , skipping.
> 2007-12-30 15:34:42,721 FATAL fetcher.Fetcher2 - java.lang.NullPointerException
> 2007-12-30 15:34:42,721 FATAL fetcher.Fetcher2 - at org.apache.nutch.fetcher.Fetcher2$FetchItemQueues.finishFetchItem(Fetcher2.java:327)
> 2007-12-30 15:34:42,721 FATAL fetcher.Fetcher2 - at org.apache.nutch.fetcher.Fetcher2$FetchItemQueues.finishFetchItem(Fetcher2.java:323)
> 2007-12-30 15:34:42,721 FATAL fetcher.Fetcher2 - at org.apache.nutch.fetcher.Fetcher2$FetcherThread.run(Fetcher2.java:632)
> 2007-12-30 15:34:42,721 FATAL fetcher.Fetcher2 - fetcher caught:java.lang..NullPointerException
> 2007-12-30 15:34:42,721 INFO fetcher.Fetcher2 - -finishing thread FetcherThread, activeThreads=49
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