azagrebin commented on a change in pull request #10034: [FLINK-14400] Shrink 
scope of MemoryManager from TaskExecutor to slot
URL: https://github.com/apache/flink/pull/10034#discussion_r341114688
 
 

 ##########
 File path: 
flink-runtime/src/main/java/org/apache/flink/runtime/taskexecutor/TaskManagerServicesConfiguration.java
 ##########
 @@ -115,6 +116,8 @@ public TaskManagerServicesConfiguration(
                this.maxJvmHeapMemory = maxJvmHeapMemory;
                this.localRecoveryEnabled = checkNotNull(localRecoveryEnabled);
                this.queryableStateConfig = queryableStateConfig;
+
+               Preconditions.checkArgument(0 < numberOfSlots, "The number of 
task slots must be greater than 0.");
 
 Review comment:
   True, commit split mess up

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