Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/4991#discussion_r156715729
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/clusterframework/types/ResourceProfile.java
---
@@ -52,6 +63,15 @@
/** How many native memory in mb are needed */
private final int nativeMemoryInMB;
+ /** A extensible field for user specified resources from {@link
ResourceSpec}. */
+ private final Map<String, Double> extendedResources = new TreeMap<>();
--- End diff --
Why not using a `HashMap`?
---
