org.apache.spark.sql.execution.streaming

StreamExecution

class StreamExecution extends StreamingQuery with Logging

Manages the execution of a streaming Spark SQL query that is occurring in a separate thread. Unlike a standard query, a streaming query executes repeatedly each time new data arrives at any Source present in the query plan. Whenever new data arrives, a QueryExecution is created and the results are committed transactionally to the given Sink.

Linear Supertypes
Logging, StreamingQuery, AnyRef, Any
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  1. StreamExecution
  2. Logging
  3. StreamingQuery
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  1. Public
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Instance Constructors

  1. new StreamExecution(sparkSession: SparkSession, id: Long, name: String, checkpointRoot: String, logicalPlan: LogicalPlan, sink: Sink, trigger: Trigger, triggerClock: Clock, outputMode: OutputMode)

Type Members

  1. trait State extends AnyRef

Value Members

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

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

    Definition Classes
    Any
  3. final def ##(): Int

    Definition Classes
    AnyRef → Any
  4. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  5. final def ==(arg0: Any): Boolean

    Definition Classes
    Any
  6. object ACTIVE extends State with Product with Serializable

  7. object INITIALIZED extends State with Product with Serializable

  8. object TERMINATED extends State with Product with Serializable

  9. final def asInstanceOf[T0]: T0

    Definition Classes
    Any
  10. def awaitOffset(source: Source, newOffset: Offset): Unit

    Blocks the current thread until processing for data from the given source has reached at least the given Offset.

    Blocks the current thread until processing for data from the given source has reached at least the given Offset. This method is indented for use primarily when writing tests.

  11. def awaitTermination(timeoutMs: Long): Boolean

    Waits for the termination of this query, either by query.stop() or by an exception.

    Waits for the termination of this query, either by query.stop() or by an exception. If the query has terminated with an exception, then the exception will be thrown. Otherwise, it returns whether the query has terminated or not within the timeoutMs milliseconds.

    If the query has terminated, then all subsequent calls to this method will either return true immediately (if the query was terminated by stop()), or throw the exception immediately (if the query has terminated with exception).

    Definition Classes
    StreamExecutionStreamingQuery
    Since

    2.0.0

    Exceptions thrown
    StreamingQueryException,

    if this query has terminated with an exception

  12. def awaitTermination(): Unit

    Waits for the termination of this query, either by query.stop() or by an exception.

    Waits for the termination of this query, either by query.stop() or by an exception. If the query has terminated with an exception, then the exception will be thrown.

    If the query has terminated, then all subsequent calls to this method will either return immediately (if the query was terminated by stop()), or throw the exception immediately (if the query has terminated with exception).

    Definition Classes
    StreamExecutionStreamingQuery
    Since

    2.0.0

    Exceptions thrown
    StreamingQueryException,

    if this query has terminated with an exception.

  13. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  14. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  15. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  16. def exception: Option[StreamingQueryException]

    Returns the StreamingQueryException if the query was terminated by an exception.

    Returns the StreamingQueryException if the query was terminated by an exception.

    Definition Classes
    StreamExecutionStreamingQuery
  17. def explain(): Unit

    Prints the physical plan to the console for debugging purposes.

    Prints the physical plan to the console for debugging purposes.

    Definition Classes
    StreamExecutionStreamingQuery
    Since

    2.0.0

  18. def explain(extended: Boolean): Unit

    Prints the physical plan to the console for debugging purposes.

    Prints the physical plan to the console for debugging purposes.

    extended

    whether to do extended explain or not

    Definition Classes
    StreamExecutionStreamingQuery
    Since

    2.0.0

  19. def explainInternal(extended: Boolean): String

    Expose for tests

  20. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  21. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any
  22. def hashCode(): Int

    Definition Classes
    AnyRef → Any
  23. val id: Long

    Returns the unique id of this query.

    Returns the unique id of this query. This id is automatically generated and is unique across all queries that have been started in the current process.

    Definition Classes
    StreamExecutionStreamingQuery
    Since

    2.0.0

  24. def initializeLogIfNecessary(isInterpreter: Boolean): Unit

    Attributes
    protected
    Definition Classes
    Logging
  25. def isActive: Boolean

    Whether the query is currently active or not

    Whether the query is currently active or not

    Definition Classes
    StreamExecutionStreamingQuery
  26. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  27. def isTraceEnabled(): Boolean

    Attributes
    protected
    Definition Classes
    Logging
  28. def log: Logger

    Attributes
    protected
    Definition Classes
    Logging
  29. def logDebug(msg: ⇒ String, throwable: Throwable): Unit

    Attributes
    protected
    Definition Classes
    Logging
  30. def logDebug(msg: ⇒ String): Unit

    Attributes
    protected
    Definition Classes
    Logging
  31. def logError(msg: ⇒ String, throwable: Throwable): Unit

    Attributes
    protected
    Definition Classes
    Logging
  32. def logError(msg: ⇒ String): Unit

    Attributes
    protected
    Definition Classes
    Logging
  33. def logInfo(msg: ⇒ String, throwable: Throwable): Unit

    Attributes
    protected
    Definition Classes
    Logging
  34. def logInfo(msg: ⇒ String): Unit

    Attributes
    protected
    Definition Classes
    Logging
  35. def logName: String

    Attributes
    protected
    Definition Classes
    Logging
  36. def logTrace(msg: ⇒ String, throwable: Throwable): Unit

    Attributes
    protected
    Definition Classes
    Logging
  37. def logTrace(msg: ⇒ String): Unit

    Attributes
    protected
    Definition Classes
    Logging
  38. def logWarning(msg: ⇒ String, throwable: Throwable): Unit

    Attributes
    protected
    Definition Classes
    Logging
  39. def logWarning(msg: ⇒ String): Unit

    Attributes
    protected
    Definition Classes
    Logging
  40. val name: String

    Returns the name of the query.

    Returns the name of the query. This name is unique across all active queries. This can be set in the DataStreamWriter as dataframe.writeStream.queryName("query").start().

    Definition Classes
    StreamExecutionStreamingQuery
    Since

    2.0.0

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

    Definition Classes
    AnyRef
  42. final def notify(): Unit

    Definition Classes
    AnyRef
  43. final def notifyAll(): Unit

    Definition Classes
    AnyRef
  44. val outputMode: OutputMode

  45. def processAllAvailable(): Unit

    Blocks until all available data in the source has been processed and committed to the sink.

    Blocks until all available data in the source has been processed and committed to the sink. This method is intended for testing. Note that in the case of continually arriving data, this method may block forever. Additionally, this method is only guaranteed to block until data that has been synchronously appended data to a org.apache.spark.sql.execution.streaming.Source prior to invocation. (i.e. getOffset must immediately reflect the addition).

    Definition Classes
    StreamExecutionStreamingQuery
    Since

    2.0.0

  46. val sink: Sink

  47. def sinkStatus: SinkStatus

    Returns current status of the sink.

    Returns current status of the sink.

    Definition Classes
    StreamExecutionStreamingQuery
  48. def sourceStatuses: Array[SourceStatus]

    Returns current status of all the sources.

    Returns current status of all the sources.

    Definition Classes
    StreamExecutionStreamingQuery
  49. val sparkSession: SparkSession

    Returns the SparkSession associated with this.

    Returns the SparkSession associated with this.

    Definition Classes
    StreamExecutionStreamingQuery
    Since

    2.0.0

  50. def stop(): Unit

    Signals to the thread executing micro-batches that it should stop running after the next batch.

    Signals to the thread executing micro-batches that it should stop running after the next batch. This method blocks until the thread stops running.

    Definition Classes
    StreamExecutionStreamingQuery
  51. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  52. def toDebugString: String

  53. def toString(): String

    Definition Classes
    StreamExecution → AnyRef → Any
  54. val trigger: Trigger

  55. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  56. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  57. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from Logging

Inherited from StreamingQuery

Inherited from AnyRef

Inherited from Any

Ungrouped