Abhey Rana created YARN-11819:
---------------------------------

             Summary: Request a HDFS delegation token refresh even at 
DelegationTokenRenewerAppSubmitEvent
                 Key: YARN-11819
                 URL: https://issues.apache.org/jira/browse/YARN-11819
             Project: Hadoop YARN
          Issue Type: Bug
          Components: resourcemanager
    Affects Versions: 3.3.6, 3.5.0, 3.4.2
            Reporter: Abhey Rana
             Fix For: 3.5.0, 3.4.2


We observed in our production environment that the jobs submitted with a RM 
delegation token were continually failing to start.



Upon further investigation we figured out the following Stack Trace as the 
culprit -
{code}
java.io.IOException: Failed to renew token: Kind: HDFS_DELEGATION_TOKEN, 
Service: ha-hdfs:prod-EMPTY-hbase4a, Ident: (token for sfdc: 
HDFS_DELEGATION_TOKEN 
owner=hbase/hbase4a-dnds1-86-ia7.ops.sfdc....@hbase4a-ia7.app.sfdc.net, 
renewer=sfdc, realUser=, issueDate=1744651400720, maxDate=1745256200720, 
sequenceNumber=2575348, masterKeyId=790)
        at 
org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer.handleAppSubmitEvent(DelegationTokenRenewer.java:533)
        at 
org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer.access$1800(DelegationTokenRenewer.java:83)
        at 
org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer$DelegationTokenRenewerRunnable.handleDTRenewerAppSubmitEvent(DelegationTokenRenewer.java:1067)
        at 
org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer$DelegationTokenRenewerRunnable.run(DelegationTokenRenewer.java:1044)
        at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:750){code}

We took a look at the code and figured out that as part of the 
handleAppSubmitEvent we do catch the IOException and do request a 
DelegationTokenRefresh but we only do that for 
DelegationTokenRenewerAppRecoverEvent

Code Pointer - 
{code:java}
            if (ioe instanceof SecretManager.InvalidToken
                && dttr.maxDate < Time.now()
                && evt instanceof DelegationTokenRenewerAppRecoverEvent
                && token.getKind().equals(HDFS_DELEGATION_KIND)) {
              LOG.info("Failed to renew hdfs token " + dttr
                  + " on recovery as it expired, requesting new hdfs token for "
                  + applicationId + ", user=" + evt.getUser(), ioe);
              requestNewHdfsDelegationTokenAsProxyUser(
                  Arrays.asList(applicationId), evt.getUser(),
                  evt.shouldCancelAtEnd());
              continue;
            }{code}

The idea is to add a or statement in the event check.

evt instanceof DelegationTokenRenewerAppRecoverEvent || evt instanceof 
DelegationTokenRenewerAppSubmitEvent

 



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