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_r395429422
 
 

 ##########
 File path: 
flink-runtime/src/main/java/org/apache/flink/runtime/checkpoint/CheckpointCoordinator.java
 ##########
 @@ -91,9 +92,6 @@
 
        // 
------------------------------------------------------------------------
 
-       /** Coordinator-wide lock to safeguard the checkpoint updates. */
-       private final Object lock = new Object();
 
 Review comment:
   Sure, nice point!

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