org.apache.spark.deploy

SparkHadoopUtil

class SparkHadoopUtil extends Logging

:: DeveloperApi :: Contains util methods to interact with Hadoop from Spark.

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@DeveloperApi()
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Instance Constructors

  1. new SparkHadoopUtil()

Value Members

  1. final def !=(arg0: AnyRef): Boolean

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  2. final def !=(arg0: Any): Boolean

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  3. final def ##(): Int

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  4. final def ==(arg0: AnyRef): Boolean

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  5. final def ==(arg0: Any): Boolean

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  6. def addCredentials(conf: JobConf): Unit

    Add any user credentials to the job conf which are necessary for running on a secure Hadoop cluster.

  7. def addCurrentUserCredentials(creds: Credentials): Unit

  8. def addSecretKeyToUserCredentials(key: String, secret: String): Unit

  9. final def asInstanceOf[T0]: T0

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  10. def clone(): AnyRef

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    @throws( ... )
  11. val conf: Configuration

  12. final def eq(arg0: AnyRef): Boolean

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  13. def equals(arg0: Any): Boolean

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  14. def finalize(): Unit

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  15. final def getClass(): Class[_]

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  16. def getConfigurationFromJobContext(context: JobContext): Configuration

    Using reflection to get the Configuration from JobContext/TaskAttemptContext.

    Using reflection to get the Configuration from JobContext/TaskAttemptContext. If we directly call JobContext/TaskAttemptContext.getConfiguration, it will generate different byte codes for Hadoop 1.+ and Hadoop 2.+ because JobContext/TaskAttemptContext is class in Hadoop 1.+ while it's interface in Hadoop 2.+.

  17. def getCurrentUserCredentials(): Credentials

  18. def getSecretKeyFromUserCredentials(key: String): Array[Byte]

  19. def hashCode(): Int

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  20. final def isInstanceOf[T0]: Boolean

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  21. def isTraceEnabled(): Boolean

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  22. def isYarnMode(): Boolean

  23. def log: Logger

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  24. def logDebug(msg: ⇒ String, throwable: Throwable): Unit

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  25. def logDebug(msg: ⇒ String): Unit

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  26. def logError(msg: ⇒ String, throwable: Throwable): Unit

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  27. def logError(msg: ⇒ String): Unit

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  28. def logInfo(msg: ⇒ String, throwable: Throwable): Unit

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  29. def logInfo(msg: ⇒ String): Unit

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  30. def logName: String

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  31. def logTrace(msg: ⇒ String, throwable: Throwable): Unit

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  32. def logTrace(msg: ⇒ String): Unit

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  33. def logWarning(msg: ⇒ String, throwable: Throwable): Unit

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  34. def logWarning(msg: ⇒ String): Unit

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  35. def loginUserFromKeytab(principalName: String, keytabFilename: String): Unit

  36. final def ne(arg0: AnyRef): Boolean

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  37. def newConfiguration(conf: SparkConf): Configuration

    Return an appropriate (subclass) of Configuration.

    Return an appropriate (subclass) of Configuration. Creating config can initializes some Hadoop subsystems.

  38. def newConfiguration(): Configuration

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    @Deprecated
  39. final def notify(): Unit

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  40. final def notifyAll(): Unit

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  41. def runAsSparkUser(func: () ⇒ Unit): Unit

    Runs the given function with a Hadoop UserGroupInformation as a thread local variable (distributed to child threads), used for authenticating HDFS and YARN calls.

    Runs the given function with a Hadoop UserGroupInformation as a thread local variable (distributed to child threads), used for authenticating HDFS and YARN calls.

    IMPORTANT NOTE: If this function is going to be called repeated in the same process you need to look https://issues.apache.org/jira/browse/HDFS-3545 and possibly do a FileSystem.closeAllForUGI in order to avoid leaking Filesystems

  42. final def synchronized[T0](arg0: ⇒ T0): T0

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  43. def toString(): String

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  44. def transferCredentials(source: UserGroupInformation, dest: UserGroupInformation): Unit

  45. final def wait(): Unit

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  46. final def wait(arg0: Long, arg1: Int): Unit

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  47. final def wait(arg0: Long): Unit

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