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https://issues.apache.org/jira/browse/SOLR-15017?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Thomas Mortagne updated SOLR-15017:
-----------------------------------
Description:
I just upgraded solr-core (I'm using Solr in embedded mode) from 8.5.1 to 8.7.0
and it seems that the lib subfolder inside a core folder is not taken into
account anymore.
Works fine when I move the lib folder one level up (in the Solr home folder)
but when the lib folder with the plugins is located in the core folder it
cannot find any of the class.
I debugged it a little and I think the regression was caused by the refactoring
done in
https://github.com/apache/lucene-solr/commit/732348ec7f9c6b6f7bf9d539a40e50d16198cccc#diff-473fbcdab103c08461ad1b3c3bb1c6d56f1bcd16d6ce341d80855db2cb20a427R749
: the handling of the lib/ core's sub folder was moved to
SolrConfig#initLibs() but unfortunately the check to make sure there is at
least one {{<lib>}} element in the configuration file was not removed which
means that if you don't have any of those then the content of the lib/ folder
is totally ignored.
That debugging was easy enough but I don't know Solr internals enough to
propose something clean to fix the issue in a pull request.
The workaround is to make sure there is at least one {{<lib/>}} (for example
{{{{<lib dir="lib" regex=".*\.jar" />}}}}) element in the core's solrconfig.xml
file.
was:
I just upgraded solr-core (I'm using Solr in embedded mode) from 8.5.1 to 8.7.0
and it seems that the lib subfolder inside a core folder is not taken into
account anymore.
Works fine when I move the lib folder one level up (in the Solr home folder)
but when the lib folder with the plugins is located in the core folder it
cannot find any of the class.
I debugged it a little and I think the regression was caused by the refactoring
done in
https://github.com/apache/lucene-solr/commit/732348ec7f9c6b6f7bf9d539a40e50d16198cccc#diff-473fbcdab103c08461ad1b3c3bb1c6d56f1bcd16d6ce341d80855db2cb20a427R749
: the handling of the lib/ core's sub folder was moved to
SolrConfig#initLibs() but unfortunately the check to make sure there is at
least one {{<lib>}} element in the configuration file was not removed which
means that if you don't have any of those then the content of the lib/ folder
is totally ignored.
That debugging was easy enough but I don't know Solr internals enough to
propose something clean to fix the issue in a pull request.
The workaround is to make sure there is at least one {{<lib dir="lib"
regex=".*\.jar" />}} element in the core's solrconfig.xml file.
> The core's lib/ folder content is not loaded in the classloader anymore
> -----------------------------------------------------------------------
>
> Key: SOLR-15017
> URL: https://issues.apache.org/jira/browse/SOLR-15017
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Affects Versions: 8.7
> Reporter: Thomas Mortagne
> Priority: Blocker
>
> I just upgraded solr-core (I'm using Solr in embedded mode) from 8.5.1 to
> 8.7.0 and it seems that the lib subfolder inside a core folder is not taken
> into account anymore.
> Works fine when I move the lib folder one level up (in the Solr home folder)
> but when the lib folder with the plugins is located in the core folder it
> cannot find any of the class.
> I debugged it a little and I think the regression was caused by the
> refactoring done in
> https://github.com/apache/lucene-solr/commit/732348ec7f9c6b6f7bf9d539a40e50d16198cccc#diff-473fbcdab103c08461ad1b3c3bb1c6d56f1bcd16d6ce341d80855db2cb20a427R749
> : the handling of the lib/ core's sub folder was moved to
> SolrConfig#initLibs() but unfortunately the check to make sure there is at
> least one {{<lib>}} element in the configuration file was not removed which
> means that if you don't have any of those then the content of the lib/ folder
> is totally ignored.
> That debugging was easy enough but I don't know Solr internals enough to
> propose something clean to fix the issue in a pull request.
> The workaround is to make sure there is at least one {{<lib/>}} (for example
> {{{{<lib dir="lib" regex=".*\.jar" />}}}}) element in the core's
> solrconfig.xml file.
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