HDDS-11386. Multithreading bug in ContainerBalancerTask #40
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What changes were proposed in this pull request?
The method
getCurrentIterationsStatisticaccesses various data structures and objects. A reading thread that's executing this method could be reading while the balancing thread is writing to these data structures and objects. This is code is not thread safe and can cause unpredictable errors.Replaced
ListwithCopyOnWriteArrayList.What is the link to the Apache JIRA
HDDS-11386
How was this patch tested?
Test