rkhachatryan commented on a change in pull request #16457:
URL: https://github.com/apache/flink/pull/16457#discussion_r667874251



##########
File path: 
flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/DeclarativeSlotManager.java
##########
@@ -647,7 +647,12 @@ private ResourceCounter 
tryFulfillRequirementsWithPendingSlots(
                     pendingSlots = allocationResult.getNewAvailableResources();
                     if (!allocationResult.isSuccessfulAllocating()
                             && sendNotEnoughResourceNotifications) {
-                        LOG.warn("Could not fulfill resource requirements of 
job {}.", jobId);
+                        // TODO (review): free slots are logged as zero here, 
but non-zero in
+                        // JobMaster.slotPoolService

Review comment:
       I was concerned that it logs zero free slots - inconsistently with the 
other log statements from this PR.
   In fact, it always logs zero free slots here, even right after returning 
them to `DefaultSlotTracker.freeSlots`.
   I'm trying to understand what's going on there...




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