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https://issues.apache.org/jira/browse/YARN-10735?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wang, Xinglong updated YARN-10735:
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Attachment: YARN-10735.001.patch
> Unmanaged AM is won't populate AMRMToken to ApplicationReport in secure
> cluster
> -------------------------------------------------------------------------------
>
> Key: YARN-10735
> URL: https://issues.apache.org/jira/browse/YARN-10735
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Wang, Xinglong
> Assignee: Wang, Xinglong
> Priority: Minor
> Attachments: YARN-10735.001.patch
>
>
> With kerberos enabled, NPE will be reported when launching
> UnmanagedAMLauncher.
> It is due to there is no AMRMToken is returned in ApplicationReport. After a
> while investigation, it turns out that RMAppImpl has a bad if condition
> inside createAndGetApplicationReport
> {code:java}
> 21/04/14 02:46:01 INFO unmanagedamlauncher.UnmanagedAMLauncher: Initializing
> Client
> 21/04/14 02:46:02 INFO unmanagedamlauncher.UnmanagedAMLauncher: Starting
> Client
> 21/04/14 02:46:02 INFO client.AHSProxy: Connecting to Application History
> server at /0.0.0.0:10200
> 21/04/14 02:46:02 INFO unmanagedamlauncher.UnmanagedAMLauncher: Setting up
> application submission context for ASM
> 21/04/14 02:46:02 INFO client.ConfiguredRMFailoverProxyProvider: Failing over
> to rm2
> 21/04/14 02:46:02 INFO unmanagedamlauncher.UnmanagedAMLauncher: Setting
> unmanaged AM
> 21/04/14 02:46:02 INFO unmanagedamlauncher.UnmanagedAMLauncher: Submitting
> application to ASM
> 21/04/14 02:46:03 INFO impl.YarnClientImpl: Submitted application
> application_1618393442264_0002
> 21/04/14 02:46:04 INFO unmanagedamlauncher.UnmanagedAMLauncher: Got
> application report from ASM for, appId=2,
> appAttemptId=appattempt_1618393442264_0002_000001, clientToAMToken=Token {
> kind: YARN_CLIENT_TOKEN, service: }, appDiagnostics=AM container is
> launched, waiting for AM container to Register with RM, appMasterHost=N/A,
> appQueue=hdmi-default, appMasterRpcPort=-1, appStartTime=1618393562917,
> yarnAppState=ACCEPTED, distributedFinalState=UNDEFINED, appTrackingUrl=N/A,
> appUser=b_carmel
> 21/04/14 02:46:04 INFO unmanagedamlauncher.UnmanagedAMLauncher: Launching AM
> with application attempt id appattempt_1618393442264_0002_000001
> 21/04/14 02:46:04 FATAL unmanagedamlauncher.UnmanagedAMLauncher: Error
> running Client
> java.lang.NullPointerException
> at
> org.apache.hadoop.yarn.applications.unmanagedamlauncher.UnmanagedAMLauncher.launchAM(UnmanagedAMLauncher.java:186)
> at
> org.apache.hadoop.yarn.applications.unmanagedamlauncher.UnmanagedAMLauncher.run(UnmanagedAMLauncher.java:354)
> at
> org.apache.hadoop.yarn.applications.unmanagedamlauncher.UnmanagedAMLauncher.main(UnmanagedAMLauncher.java:111)
> {code}
>
> {code:java}
> public ApplicationReport createAndGetApplicationReport(String clientUserName,
> boolean allowAccess) {
> ......
> if (currentAttempt != null &&
> currentAttempt.getAppAttemptState() ==
> RMAppAttemptState.LAUNCHED) {
> if (getApplicationSubmissionContext().getUnmanagedAM() &&
> clientUserName != null && getUser().equals(clientUserName)) {
> Token<AMRMTokenIdentifier> token = currentAttempt.getAMRMToken();
> if (token != null) {
> amrmToken = BuilderUtils.newAMRMToken(token.getIdentifier(),
> token.getKind().toString(), token.getPassword(),
> token.getService().toString());
> }
> }
> }
> {code}
> clientUserName is fullName of a kerberos principle like [email protected]
> whereas getUser() will return the username recorded in RMAppImpl which is
> short name.
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