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https://issues.apache.org/jira/browse/SOLR-5278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13779423#comment-13779423
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Uwe Schindler commented on SOLR-5278:
-------------------------------------
This is not a configuration error. The problem is a "bug" in your JAR file
which does not have the codecs listed in its metadata.
> Can create an index with a custom codec, but not load it
> --------------------------------------------------------
>
> Key: SOLR-5278
> URL: https://issues.apache.org/jira/browse/SOLR-5278
> Project: Solr
> Issue Type: Bug
> Components: SolrCloud
> Affects Versions: 4.0, 4.4
> Reporter: Scott Schneider
> Priority: Minor
>
> This really is a case where Solr could display a helpful error message about
> incomplete configuration of a custom codec.
> I created a custom codec and set it in the codecFactory directive in
> solrconfig.xml, but didn't create an org.apache.lucene.codecs.Codec file.
> When I ran Solr for the first time, it works fine: I can post new data and
> query. Also, if I stop Solr, delete the data directory, and start Solr
> again, it works fine. But when I stop Solr and start again, I get this error:
> 2380 [coreLoadExecutor-3-thread-1] ERROR org.apache.solr.core.CoreContainer
> รป Unable to create core: collection1
> org.apache.solr.common.SolrException: Error opening new searcher
> ...
> Caused by: org.apache.solr.common.SolrException: Error opening new searcher
> ...
> Caused by: org.apache.solr.common.SolrException: Error opening Reader
> ...
> Caused by: java.lang.IllegalArgumentException: A SPI class of type
> org.apache.lucene.codecs.Codec with name 'EncryptedStoredFieldsCodec' does
> not exist. You need to add the corresponding JAR file supporting this SPI to
> your classpath. The current classpath supports the following names:
> [SimpleText, Appending, Lucene40, Lucene3x, Lucene41, Lucene42]
> at
> org.apache.lucene.util.NamedSPILoader.lookup(NamedSPILoader.java:109)
> ...
> My JAR is definitely in the classpath. It has my .class files, but no
> org.apache.lucene.codecs.Codec file. I believe this error condition will be
> easy to repro, but contact me if it's not.
> Chris Hostetter asked me to file this. His suggested fix is that, when Solr
> uses the configured codec factory, it should test whether SPI can find the
> corresponding custom codec. If not, it should throw an exception with a
> clear error message.
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