Hoss Man created SOLR-9934:
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             Summary: SolrTestCase.clearIndex should ensure 
IndexWriter.deleteAll is called
                 Key: SOLR-9934
                 URL: https://issues.apache.org/jira/browse/SOLR-9934
             Project: Solr
          Issue Type: Test
      Security Level: Public (Default Security Level. Issues are Public)
            Reporter: Hoss Man
            Assignee: Hoss Man



Normal deleteByQuery commands are subject to version constraint checks due to 
the possibility of out of order updates, but DUH2 has special support 
(triggered by {{version=-Long.MAX_VALUE}} for use by tests to override these 
version constraints and do a low level {{IndexWriter.deleteAll()}} call.  A 
handful of tests override {{SolrTestCaseJ4.clearIndex()}} to take advantage of 
this (using copy/pasted impls), but given the intended purpose/usage of 
{{SolrTestCaseJ4.clearIndex()}}, it seems like the the base method in 
{{SolrTestCaseJ4}} should itself trigger this low level deletion, so tests get 
this behavior automatically.




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