vinoyang created FLINK-14640:
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Summary: Change Type of Field currentExecutions from
ConcurrentHashMap to HashMap
Key: FLINK-14640
URL: https://issues.apache.org/jira/browse/FLINK-14640
Project: Flink
Issue Type: Sub-task
Reporter: vinoyang
After FLINK-11417, we made ExecutionGraph be a single-thread mode. It will no
longer be plagued by concurrency issues. So, we can degenerate the current
ConcurrentHashMap type of currentExecutions to a normal HashMap type.
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