[jira] [Created] (SPARK-28150) Failure to create multiple contexts in same JVM with Kerberos auth

["Marcelo Vanzin (JIRA)" <ji...@apache.org>]

Marcelo Vanzin created SPARK-28150:
--------------------------------------

             Summary: Failure to create multiple contexts in same JVM with Kerberos auth
                 Key: SPARK-28150
                 URL: https://issues.apache.org/jira/browse/SPARK-28150
             Project: Spark
          Issue Type: Bug
          Components: Spark Core
    Affects Versions: 3.0.0
            Reporter: Marcelo Vanzin


Take the following small app that creates multiple contexts (not concurrently):

{code}
from pyspark.context import SparkContext
import time

for i in range(2):
  with SparkContext() as sc:
    pass
  time.sleep(5)
{code}

This fails when kerberos (without dt renewal) is being used:

{noformat}
19/06/24 11:33:58 ERROR spark.SparkContext: Error initializing SparkContext.
java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.spark.deploy.security.HBaseDelegationTokenProvider.obtainDelegationTokens(HBaseDelegationTokenProvider.scala:49)
Caused by: org.apache.hadoop.hbase.shaded.com.google.protobuf.ServiceException: Error calling method hbase.pb.AuthenticationService.GetAuthenticationToken
        at org.apache.hadoop.hbase.client.SyncCoprocessorRpcChannel.callBlockingMethod(SyncCoprocessorRpcChannel.java:71)
{noformat}

If you enable dt renewal things work since the codes takes a slightly different path when generating the initial delegation tokens.



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