zhuzhurk commented on code in PR #20080:
URL: https://github.com/apache/flink/pull/20080#discussion_r907292066
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flink-runtime/src/main/java/org/apache/flink/runtime/executiongraph/ExecutionVertex.java:
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@@ -270,16 +269,9 @@ public TaskManagerLocation
getCurrentAssignedResourceLocation() {
return currentExecution.getAssignedResourceLocation();
}
- @Nullable
@Override
- public ArchivedExecution getPriorExecutionAttempt(int attemptNumber) {
- synchronized (priorExecutions) {
- if (attemptNumber >= 0 && attemptNumber < priorExecutions.size()) {
- return priorExecutions.get(attemptNumber);
- } else {
- throw new IllegalArgumentException("attempt does not exist");
- }
- }
+ public ExecutionHistory getExecutionHistory() {
+ return executionHistory;
Review Comment:
ExecutionGraph used to be possible to be concurrently modified&accessed. Now
with the new JM thread model(single-threaded of JM status access&modification),
concurrency would not happen anymore.
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