Fetcher2 - java.lang.NullPointerException when host does not exist and
fetcher.threads.per.host.by.ip is set to true causes threads to finish.
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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
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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