hunshenshi created YARN-9601:
--------------------------------
Summary: 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
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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