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From "Jason Gerlowski (JIRA)" <>
Subject [jira] [Created] (SOLR-11256) Provide default for ConcurrentUpdateSolrClient's "queueSize" param
Date Thu, 17 Aug 2017 23:39:00 GMT
Jason Gerlowski created SOLR-11256:

             Summary: Provide default for ConcurrentUpdateSolrClient's "queueSize" param
                 Key: SOLR-11256
             Project: Solr
          Issue Type: Bug
      Security Level: Public (Default Security Level. Issues are Public)
          Components: SolrJ
    Affects Versions: master (8.0)
            Reporter: Jason Gerlowski
            Priority: Minor

A user on the mailing list recently pointed out that if it's not specified explicitly as a
Builder option, ConcurrentUpdateSolrClient will default to using a queueSize of 0.  This value
gets passed in to the underlying queue data structure which throws an IllegalArgumentException,
with an error message that isn't obvious to those unfamiliar with the internals.

We should provide a better default than the uninitialized-variable default of 0.  Almost all
occurrences in the code fall between 5 and 10, so a queueSize in that range should be uncontroversial.

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