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https://issues.apache.org/jira/browse/SOLR-13255?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16769161#comment-16769161
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Jan Høydahl commented on SOLR-13255:
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Attached a raw, not tested patch for langid for branch_7_7. Due to a refactor,
the patch will be different for master and 8x, where we'll need to fix
SolrInputDocumentReader instead, which also does instanced String.
I think that for 8.0 we should add an UPGRADE NOTE about this breaking change...
> LanguageIdentifierUpdateProcessor broken for documents sent with SolrJ/javabin
> ------------------------------------------------------------------------------
>
> Key: SOLR-13255
> URL: https://issues.apache.org/jira/browse/SOLR-13255
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: contrib - LangId
> Affects Versions: 7.7
> Reporter: Andreas Hubold
> Priority: Major
> Attachments: SOLR-13255.patch
>
>
> 7.7 changed the object type of string field values that are passed to
> UpdateRequestProcessor implementations from java.lang.String to
> ByteArrayUtf8CharSequence. SOLR-12992 was mentioned on solr-user as cause.
> The LangDetectLanguageIdentifierUpdateProcessor still expects String values,
> does not work for CharSequences, and logs warnings instead. For example:
> {noformat}
> 2019-02-14 13:14:47.537 WARN (qtp802600647-19) [ x:studio]
> o.a.s.u.p.LangDetectLanguageIdentifierUpdateProcessor Field name_tokenized
> not a String value, not including in detection
> {noformat}
> I'm not sure, but there could be further places where the changed type for
> string values needs to be handled. (Our custom UpdateRequestProcessor are
> broken as well since 7.7 and it would be great to have a proper upgrade note
> as part of the release notes)
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