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Posted to issues@solr.apache.org by "ASF subversion and git services (Jira)" <ji...@apache.org> on 2022/12/15 19:16:00 UTC

[jira] [Commented] (SOLR-16589) Large fields with large="true" can be truncated when using unicode values

    [ https://issues.apache.org/jira/browse/SOLR-16589?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17648216#comment-17648216 ] 

ASF subversion and git services commented on SOLR-16589:
--------------------------------------------------------

Commit 45834aa62454b15f6bb3b4ebeeee2f0a94fc11f9 in solr's branch refs/heads/main from Kevin Risden
[ https://gitbox.apache.org/repos/asf?p=solr.git;h=45834aa6245 ]

SOLR-16589: Large fields with large=true can be truncated when using unicode values (#1241)



> Large fields with large="true" can be truncated when using unicode values
> -------------------------------------------------------------------------
>
>                 Key: SOLR-16589
>                 URL: https://issues.apache.org/jira/browse/SOLR-16589
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: search
>    Affects Versions: 9.0, 9.1, 9.2
>            Reporter: Nikolas Osvalds
>            Assignee: Kevin Risden
>            Priority: Major
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> h3. Summary
> For fields using large="true", large fields (which is what they are intended for) can be truncated in v9+ of Solr.
> Example fieldtype definition:
> {code:java}
> <fieldtype name="string_large"  class="solr.TextField" multiValued="false" indexed="false" stored="true" omitNorms="true" large="true" />{code}
> h3. Cause
> Looks like this is a bug introduced along with https://issues.apache.org/jira/browse/LUCENE-8805 / https://github.com/apache/lucene/issues/9849
> The current code is here:
> https://github.com/apache/solr/blob/main/solr/core/src/java/org/apache/solr/search/SolrDocumentFetcher.java#L511
>  
> {code:java}
> public void stringField(FieldInfo fieldInfo, String value) throws IOException {
>     Objects.requireNonNull(value, "String value should not be null");
>     bytesRef.bytes = value.getBytes(StandardCharsets.UTF_8);
>     bytesRef.length = value.length();
> {code}
>  
> Specifically with respect to "large" fields handling.
> The length in utf8 bytes will often be longer than the string length `value.length()`, hence the truncation.
> h3. Fix
> {code:java}
> bytesRef.length = bytesRef.bytes.length {code}
>  



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