tillrohrmann commented on a change in pull request #11353: [FLINK-16438][yarn]
Make YarnResourceManager starts workers using WorkerResourceSpec requested by
SlotManager
URL: https://github.com/apache/flink/pull/11353#discussion_r409610652
##########
File path:
flink-yarn/src/main/java/org/apache/flink/yarn/YarnResourceManager.java
##########
@@ -552,38 +581,44 @@ private FinalApplicationStatus
getYarnStatus(ApplicationStatus status) {
* Request new container if pending containers cannot satisfy pending
slot requests.
*/
private void requestYarnContainerIfRequired() {
- int requiredTaskManagers = getNumberRequiredWorkers();
-
- while (requiredTaskManagers-- > numPendingContainerRequests) {
- requestYarnContainer();
- }
+
getNumberRequiredWorkersPerWorkerResourceSpec().entrySet().stream()
+ .filter(entry -> entry.getValue() >
getNumPendingWorkersFor(entry.getKey()))
+ .forEach(entry -> requestYarnContainer(entry.getKey()));
Review comment:
I assume that `requestYarnContainer` should never return `false` here,
right? If this is the case, then let's add a `checkState` to ensure this
invariant.
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