[jira] [Created] (PARQUET-1724) Use ConcurrentHashMap for Cache in DictionaryPageReader

[David Mollitor (Jira)]

David Mollitor created PARQUET-1724:
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             Summary: Use ConcurrentHashMap for Cache in DictionaryPageReader
                 Key: PARQUET-1724
                 URL: https://issues.apache.org/jira/browse/PARQUET-1724
             Project: Parquet
          Issue Type: Improvement
            Reporter: David Mollitor
            Assignee: David Mollitor


* Use ConcurrentHashMap for Cache in DictionaryPageReader
 * Use Java 1.8 APIs



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