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org.apache.spark.sql.util

QueryExecutionListener

trait QueryExecutionListener extends AnyRef

The interface of query execution listener that can be used to analyze execution metrics.

Note

Implementations should guarantee thread-safety as they can be invoked by multiple different threads.

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Abstract Value Members

  1. abstract def onFailure(funcName: String, qe: QueryExecution, exception: Exception): Unit

    A callback function that will be called when a query execution failed.

    A callback function that will be called when a query execution failed.

    funcName

    the name of the action that triggered this query.

    qe

    the QueryExecution object that carries detail information like logical plan, physical plan, etc.

    exception

    the exception that failed this query. If java.lang.Error is thrown during execution, it will be wrapped with an Exception and it can be accessed by exception.getCause.

    Annotations
    @DeveloperApi()
    Note

    This can be invoked by multiple different threads.

  2. abstract def onSuccess(funcName: String, qe: QueryExecution, durationNs: Long): Unit

    A callback function that will be called when a query executed successfully.

    A callback function that will be called when a query executed successfully.

    funcName

    name of the action that triggered this query.

    qe

    the QueryExecution object that carries detail information like logical plan, physical plan, etc.

    durationNs

    the execution time for this query in nanoseconds.

    Annotations
    @DeveloperApi()
    Note

    This can be invoked by multiple different threads.

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