Strip UTF-8 non-character codepoints
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Key: NUTCH-1016
URL: https://issues.apache.org/jira/browse/NUTCH-1016
Project: Nutch
Issue Type: Bug
Components: indexer
Affects Versions: 1.3
Reporter: Markus Jelsma
Assignee: Markus Jelsma
Fix For: 1.4, 2.0
Attachments: NUTCH-1016-1.4.patch
During a very large crawl i found a few documents producing non-character
codepoints. When indexing to Solr this will yield the following exception:
{code}
SEVERE: java.lang.RuntimeException: [was class java.io.CharConversionException]
Invalid UTF-8 character 0xffff at char #1142033, byte #1155068)
at
com.ctc.wstx.util.ExceptionUtil.throwRuntimeException(ExceptionUtil.java:18)
at com.ctc.wstx.sr.StreamScanner.throwLazyError(StreamScanner.java:731)
{code}
Quite annoying! Here's quick fix for SolrWriter that'll pass the value of the
content field to a method to strip away non-characters. I'm not too sure about
this implementation but the tests i've done locally with a huge dataset now
passes correctly. Here's a list of codepoints to strip away:
http://unicode.org/cldr/utility/list-unicodeset.jsp?a=[:Noncharacter_Code_Point=True:]
Please comment!
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