Jacek Lewandowski created SPARK-11326:
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Summary: Split networking in standalone mode
Key: SPARK-11326
URL: https://issues.apache.org/jira/browse/SPARK-11326
Project: Spark
Issue Type: Improvement
Components: Spark Core
Reporter: Jacek Lewandowski
Currently, in standalone mode, all components, for all network connections need
to use the same secure token if they want to have any security ensured.
This ticket is intended to split the communication in standalone mode to make
it more like in Yarn mode - application internal communication, scheduler
internal communication and communication between the client and scheduler.
Such refactoring will allow for the scheduler (master, workers) to use a
distinct secret, which will remain unknown for the users. Similarly, it will
allow for better security in applications, because each application will be
able to use a distinct secret as well.
By providing Kerberos based SASL authentication/encryption for connections
between a client (Client or AppClient) and Spark Master, it will be possible to
introduce authentication and automatic generation of digest tokens and safe
sharing them among the application processes.
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