akalash commented on a change in pull request #17946:
URL: https://github.com/apache/flink/pull/17946#discussion_r759977766
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/checkpoint/ExecutionAttemptMappingProvider.java
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@@ -56,14 +56,16 @@ protected boolean removeEldestEntry(
}
public Optional<ExecutionVertex> getVertex(ExecutionAttemptID id) {
- if (!cachedTasksById.containsKey(id)) {
- cachedTasksById.putAll(getCurrentAttemptMappings());
+ synchronized (cachedTasksById) {
Review comment:
Oh, or do you mean that we can drop all mapping when we have even one
miss?
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