question on automating kerberization

[Fay Wang]

Hi,    I am able to call Ambari REST API to kerberize my cluster without going 
through Ambari UI. It works most of the time. However, sometime, the keytabs in 
a particular node of the cluster are not generated at all, causing the grief 
when starting the services. Although I can always regenerate keytabs 
afterwards, but this is truly annoying. It is a known issue? Please advise...
Thanks, 
-fay