Ted Yu created FLINK-7936:
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Summary: Lack of synchronization w.r.t. taskManagers in
MetricStore#add()
Key: FLINK-7936
URL: https://issues.apache.org/jira/browse/FLINK-7936
Project: Flink
Issue Type: Bug
Reporter: Ted Yu
Priority: Minor
{code}
String tmID = ((QueryScopeInfo.TaskManagerQueryScopeInfo)
info).taskManagerID;
tm = taskManagers.computeIfAbsent(tmID, k -> new
TaskManagerMetricStore());
{code}
In other places, access to taskManagers is protected by lock on MetricStore.this
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