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Posted to yarn-dev@hadoop.apache.org by "lujie (JIRA)" <ji...@apache.org> on 2019/01/23 02:56:00 UTC
[jira] [Created] (YARN-9223) NPE happens in NM while loading
recovery fails
lujie created YARN-9223:
---------------------------
Summary: NPE happens in NM while loading recovery fails
Key: YARN-9223
URL: https://issues.apache.org/jira/browse/YARN-9223
Project: Hadoop YARN
Issue Type: Bug
Reporter: lujie
Assignee: lujie
In org.apache.hadoop.yarn.server.nodemanager.NodeManager.serviceInit:
{code:java}
try {
initAndStartRecoveryStore(conf);
} catch (IOException e) {
String recoveryDirName = conf.get(YarnConfiguration.NM_RECOVERY_DIR);
throw new
YarnRuntimeException("Unable to initialize recovery directory at "
+ recoveryDirName, e);
}
............
this.context = createNMContext(containerTokenSecretManager,
nmTokenSecretManager, nmStore, isDistSchedulingEnabled, conf);
{code}
while Recovery fails, the context is null, and YarnRuntimeException will cause serviceStop to run(due to Shutdown Hook):
{code:java}
// Cleanup ResourcePluginManager
ResourcePluginManager rpm = context.getResourcePluginManager();
{code}
hence NPE happens:
{code:java}
java.lang.NullPointerException
at org.apache.hadoop.yarn.server.nodemanager.NodeManager.serviceStop(NodeManager.java:530)
at org.apache.hadoop.service.AbstractService.stop(AbstractService.java:220)
at org.apache.hadoop.service.ServiceOperations.stop(ServiceOperations.java:54)
at org.apache.hadoop.service.ServiceOperations.stopQuietly(ServiceOperations.java:102)
at org.apache.hadoop.service.AbstractService.init(AbstractService.java:172)
at org.apache.hadoop.yarn.server.nodemanager.NodeManager.initAndStartNodeManager(NodeManager.java:984)
at org.apache.hadoop.yarn.server.nodemanager.NodeManager.main(NodeManager.java:1064)
{code}
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