Github user squito commented on the issue:

    https://github.com/apache/spark/pull/20657
  
    btw I took a look at the code in `MesosHadoopDelegationTokenManager`, there 
seems to be a lot of duplication that could probably be factored out, and I 
wonder if the things that are different really should be the same.  Eg. mesos 
doesn't expose a conf for KERBEROS_RELOGIN, its just using the renewal time 
from the delegation tokens.  Seems pretty easy for that to be wrong.
    
    I can open a separate ticket for that but wanted to see if this makes sense


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