ifndef-SleePy 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_r396319772
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/checkpoint/CheckpointCoordinator.java
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@@ -151,6 +149,9 @@
* It must be single-threaded. Eventually it will be replaced by main
thread executor. */
private final ScheduledExecutor timer;
+ @Nullable
+ private ComponentMainThreadExecutor mainThreadExecutor;
Review comment:
Sadly I didn't find an easy way. It involves too much for this. For now I
use the `DummyComponentMainThreadExecutor` and mark it `@Nonnull` as you
advised. But I think it's worth a separate ticket. I put it on my follow-up
list.
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