Sergey Soldatov created PHOENIX-4525:
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             Summary: Integer overflow in GroupBy execution
                 Key: PHOENIX-4525
                 URL: https://issues.apache.org/jira/browse/PHOENIX-4525
             Project: Phoenix
          Issue Type: Bug
    Affects Versions: 4.13.0
            Reporter: Sergey Soldatov
            Assignee: Sergey Soldatov


During the execution of group by we adjust memory for the internal cache to 
keep all unique keys. We're increasing the number of keys by 1.5 factor and 
calculate how much space we need for it using SizedUtil.sizeOfMap, which is 
using ints as parameters and returns long. But since we are using all ints 
during the calculation, the integer overflow may happen and the method would 
return a negative value. As the result the query would fail, reporting that 
unable to allocate cache with negative size. 



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