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https://issues.apache.org/jira/browse/NUTCH-393?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12494552
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Andrzej Bialecki commented on NUTCH-393:
-----------------------------------------
I agree with that - either all filters should run or the document should be
discarded. If it's acceptable to tolerate exceptions in some indexing filters,
such exceptions should be caught there.
> Indexer doesn't handle null documents returned by filters
> ---------------------------------------------------------
>
> Key: NUTCH-393
> URL: https://issues.apache.org/jira/browse/NUTCH-393
> Project: Nutch
> Issue Type: Bug
> Components: indexer
> Affects Versions: 0.8.1, 0.9.0
> Reporter: Eelco Lempsink
> Attachments: NUTCH-393.patch
>
>
> Plugins (like IndexingFilter) may return a null value, but this isn't handled
> by the Indexer. A trivial adjustment is all it takes:
> @@ -237,6 +237,7 @@
> if (LOG.isWarnEnabled()) { LOG.warn("Error indexing "+key+": "+e); }
> return;
> }
> + if (doc == null) return;
>
> float boost = 1.0f;
> // run scoring filters
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