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https://issues.apache.org/jira/browse/SOLR-3432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13281381#comment-13281381
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Lance Norskog commented on SOLR-3432:
-------------------------------------
bq. we might consider adding to the IndexSchema automagically on startup if it
isn't explicitly declared in schema.xml
Please don't do automagic things. They can cover up real errors, which then
become hell to find.
Just state clearly in the exception what is wrong. Fail Loud.
> deleteByQuery silently ignored if updateLog is enabled, but {{_version_}}
> field does not exist in schema
> ---------------------------------------------------------------------------------------------------------
>
> Key: SOLR-3432
> URL: https://issues.apache.org/jira/browse/SOLR-3432
> Project: Solr
> Issue Type: Bug
> Environment: Tomcat 7
> Reporter: David
> Assignee: Yonik Seeley
> Priority: Blocker
> Fix For: 4.0
>
> Attachments: SOLR-3432.test.patch, schema.xml, solr.xml,
> solrconfig.xml, web.xml
>
>
> deleteByQuery is silently ignored if there the updateLog is configurd in
> solrconfig.xml, but there is no {{\_version\_}} field in the schema.xml (ie:
> if someone copies the example configs, and then prunes down the schema to
> remove fields they don't think they need/want)
> To reproduce:
> * comment out {{\_version\_}} in example schema
> * {{java -jar start.jar}}
> * {{java -Ddata=args -jar post.jar '<add><doc><field
> name="id">HOSS</field></doc></add>'}}
> * {{java -Ddata=args -jar post.jar '<delete><query>id:HOSS</query></delete>'}}
> ** or: {{java -Ddata=args -jar post.jar
> '<delete><query>\*:\*</query></delete>'}}
> Note in the logs that SolrCore logs the deleteByQuery, but there is no log of
> it executing...
> {noformat}
> May 3, 2012 4:36:24 PM org.apache.solr.update.processor.LogUpdateProcessor
> finish
> INFO: [collection1] webapp=/solr path=/update params={} {deleteByQuery=*:*} 0
> 41
> {noformat}
> Workarround: add this ield to your schema.xml...
> {code}
> <field name="_version_" type="long" indexed="true" stored="true"/>
> {code}
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