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Posted to dev@spark.apache.org by "Shihaoliang (Shihaoliang)" <sh...@huawei.com> on 2014/05/26 02:39:30 UTC

credential transfer question


Hi,



I have view the code about UGI in spark. If spark interactive with kerberos HDFS, The spark will apply delegate token in scheduler side, and stored as credential into the UGI; And the credential will be transferred to spark executor so that they can authenticate the HDFS. My question is how does UGI do these credential transfer? does the credential transferred in encrypted way?



Thanks in advance.

Peter Shi