zeekling commented on code in PR #7065:
URL: https://github.com/apache/hadoop/pull/7065#discussion_r1779503372
##########
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/AbstractYarnScheduler.java:
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@@ -757,10 +757,9 @@ private void completeOustandingUpdatesWhichAreReserved(
RMContainer rmContainer, ContainerStatus containerStatus,
RMContainerEventType event) {
N schedulerNode = getSchedulerNode(rmContainer.getNodeId());
- if (schedulerNode != null &&
- schedulerNode.getReservedContainer() != null) {
+ if (schedulerNode != null) {
RMContainer resContainer = schedulerNode.getReservedContainer();
- if (resContainer.getReservedSchedulerKey() != null) {
+ if (resContainer != null && resContainer.getReservedSchedulerKey() !=
null) {
Review Comment:
It is recommended to add a try catch module. I have made this change in the
production environment before, but it still reports a null pointer.
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