pnowojski commented on a change in pull request #11347:
[FLINK-14971][checkpointing] Make all the non-IO operations in
CheckpointCoordinator single-threaded
URL: https://github.com/apache/flink/pull/11347#discussion_r394983835
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/checkpoint/CompletedCheckpointStore.java
##########
@@ -28,6 +28,7 @@
/**
* A bounded LIFO-queue of {@link CompletedCheckpoint} instances.
+ * Note that it might be visited by multiple threads. So implementation should
keep it thread-safe.
Review comment:
```
@ThreadSafe
```
on the interface?
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