Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/14065#discussion_r72483453
--- Diff: docs/running-on-yarn.md ---
@@ -525,16 +534,22 @@ token for the cluster's HDFS filesystem, and
potentially for HBase and Hive.
An HBase token will be obtained if HBase is in on classpath, the HBase
configuration declares
the application is secure (i.e. `hbase-site.xml` sets
`hbase.security.authentication` to `kerberos`),
-and `spark.yarn.security.tokens.hbase.enabled` is not set to `false`.
+and `spark.yarn.security.credentials.hbase.enabled` is not set to `false`.
Similarly, a Hive token will be obtained if Hive is on the classpath, its
configuration
includes a URI of the metadata store in `"hive.metastore.uris`, and
-`spark.yarn.security.tokens.hive.enabled` is not set to `false`.
+`spark.yarn.security.credentials.hive.enabled` is not set to `false`.
If an application needs to interact with other secure HDFS clusters, then
the tokens needed to access these clusters must be explicitly requested at
launch time. This is done by listing them in the
`spark.yarn.access.namenodes` property.
+Also Spark supports interacting with other security services through
plug-in mechanism, user must implement
--- End diff --
Rephrase:
Spark supports integrating with other security-aware services through the
Java Services mechanism (see
`java.util.ServiceLoader`). To do that, implementations of
`org.apache.spark.deploy.yarn.security.ServiceCredentialProvider` should be
made available to Spark by listing their ames in the corresponding file in the
jar's `META-INF/services` directory. These plug-ins can be disabled by
setting...
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