Wei-Chiu Chuang created PHOENIX-6510:
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Summary: Double-Checked Locking field must be volatile
Key: PHOENIX-6510
URL: https://issues.apache.org/jira/browse/PHOENIX-6510
Project: Phoenix
Issue Type: Bug
Reporter: Wei-Chiu Chuang
There are three places where the field used for double-checked locking isn't
volatile. Change them to volatile to ensure thread-safety.
More details on the double-checked locking paradigm:
https://www.cs.umd.edu/~pugh/java/memoryModel/DoubleCheckedLocking.html
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