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https://issues.apache.org/jira/browse/YARN-9601?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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hunshenshi reassigned YARN-9601:
--------------------------------
Assignee: hunshenshi
> Potential NPE in ZookeeperFederationStateStore#getPoliciesConfigurations
> ------------------------------------------------------------------------
>
> Key: YARN-9601
> URL: https://issues.apache.org/jira/browse/YARN-9601
> Project: Hadoop YARN
> Issue Type: Bug
> Components: federation, yarn
> Affects Versions: 3.2.0
> Reporter: hunshenshi
> Assignee: hunshenshi
> Priority: Major
>
> Potential NPE in ZookeeperFederationStateStore#getPoliciesConfigurations
> The code of ZookeeperFederationStateStore#getPoliciesConfigurations
> {code:java}
> for (String child : zkManager.getChildren(policiesZNode)) {
> SubClusterPolicyConfiguration policy = getPolicy(child);
> result.add(policy);
> }
> {code}
> The result of `getPolicy` may be null, so policy should be checked
> The new code
> {code:java}
> for (String child : zkManager.getChildren(policiesZNode)) {
> SubClusterPolicyConfiguration policy = getPolicy(child);
> // policy maybe null, should check
> if (policy == null) {
> LOG.warn("Policy for queue: {} does not exist.", child);
> continue;
> }
> result.add(policy);
> }
> {code}
>
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