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Posted to issues@spark.apache.org by "Hyukjin Kwon (Jira)" <ji...@apache.org> on 2019/10/08 05:44:23 UTC

[jira] [Resolved] (SPARK-25329) Support passing Kerberos configuration information

     [ https://issues.apache.org/jira/browse/SPARK-25329?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyukjin Kwon resolved SPARK-25329.
----------------------------------
    Resolution: Incomplete

> Support passing Kerberos configuration information
> --------------------------------------------------
>
>                 Key: SPARK-25329
>                 URL: https://issues.apache.org/jira/browse/SPARK-25329
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 2.3.1
>            Reporter: Dale Richardson
>            Priority: Major
>              Labels: bulk-closed
>
> The current V2 Datasource API provides support for querying a portion of the SparkConfig namespace (spark.datasource.*) via the SessionConfigSupport API.  This was designed with the assumption that all configuration information for v2 data sources should be separate from each other.
> Unfortunately, there are some cross-cutting concerns such as authentication that touch multiple data sources - this means that common configuration items need to be shared amongst multiple data sources.
> In particular, Kerberos setup can use the following configuration items:
>  # userPrincipal, spark configuration:: spark.yarn.principal
>  # userKeytabPath spark configuration: spark.yarn.keytab
>  # krb5ConfPath:  java.security.krb5.conf
>  # kerberos debugging flag: sun.security.krb5.debug 
>  # spark.security.credentials.${service}.enabled
>  # JAAS config: java.security.auth.login.config ??
>  # ZKServerPrincipal ??
> So potential solutions to pass this information to various data sources are:
>  # Pass the entire SparkContext object to data sources (not likely)
>  # Pass the entire SparkConfig Map object to data sources
>  # Pass all required configuration via environment variables
>  # Extend SessionConfigSupport to support passing specific white-listed configuration values
>  # Add a specific data source v2 API "SupportsKerberos" so that a data source can indicate that it supports Kerberos and also provide the means to pass needed configuration info.
>  # Expand out all Kerberos configuration items to be in each data source config namespace that needs it.
> If the data source requires TLS support then we also need to support passing all the  configuration values under  "spark.ssl.*"
>  



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