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[KRB]

Kerberos Protocol

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[RSKT:{kerberos-service-ticket}]

RPC protocol with SASL mutual authentication using Kerberos tickets.

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[RSAT:{access-token}]

RPC protocol with SASL client authentication using access tokens (e.g. YARN Node Manager Token).

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[RSDT:{delegation-token}]

RPC protocol with SASL client authentication using delegation tokens (e.g. HDFS Name Node Delegation Token).

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[STP]

Shuffle data transfer protocol between ShuffleService and ReduceTask. HTTP protocol with TODO.

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[DTP]

Block data transfer protocol between the DataNode and a client. HTTP protocol with block tokens plus SHA1 hash exchange. ]]></ac:plain-text-body></ac:structured-macro>