azagrebin commented on a change in pull request #9910: [FLINK-14405][runtime]
Align ResourceProfile/ResourceSpec fields with the new TaskExecutor memory
setups.
URL: https://github.com/apache/flink/pull/9910#discussion_r336042781
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File path:
flink-runtime/src/main/java/org/apache/flink/runtime/clusterframework/types/ResourceProfile.java
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@@ -51,11 +52,19 @@
private static final long serialVersionUID = 1L;
- /** A ResourceProfile that indicates an unknown set of resources. */
+ /**
+ * A ResourceProfile that indicates an unknown resource requirement.
+ * This is mainly used for describing resource requirements that the
exact amount of resource needed is not specified.
+ * It can also be used for describing remaining resource of a multi
task slot that contains tasks with unknown resource requirements.
+ * It should not used for describing total resource of a task executor
/ slot, which should always be specific.
+ * */
public static final ResourceProfile UNKNOWN = new ResourceProfile();
- /** ResourceProfile which matches any other ResourceProfile. */
- public static final ResourceProfile ANY = new
ResourceProfile(Double.MAX_VALUE, Integer.MAX_VALUE, Integer.MAX_VALUE,
Integer.MAX_VALUE, Integer.MAX_VALUE, Integer.MAX_VALUE,
Collections.emptyMap());
+ /**
+ * A ResourceProfile that indicates infinite resource that matches any
resource requirement, for testability purpose only.
+ * */
+ @VisibleForTesting
+ public static final ResourceProfile INFINITE = new
ResourceProfile(Double.MAX_VALUE, Integer.MAX_VALUE, Integer.MAX_VALUE,
Integer.MAX_VALUE, Integer.MAX_VALUE, Integer.MAX_VALUE,
Collections.emptyMap());
Review comment:
Offline conclusion: exclude `INFINITE` renaming for now. Later follow-up
could be a proper separation of profile and requirement concerns to not mix
them in one class.
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