Package org.apache.spark.api.java

Class JavaSparkStatusTracker

Object
org.apache.spark.api.java.JavaSparkStatusTracker
public class JavaSparkStatusTracker extends Object
Low-level status reporting APIs for monitoring job and stage progress.

These APIs intentionally provide very weak consistency semantics; consumers of these APIs should be prepared to handle empty / missing information. For example, a job's stage ids may be known but the status API may not have any information about the details of those stages, so getStageInfo could potentially return null for a valid stage id.

To limit memory usage, these APIs only provide information on recent jobs / stages. These APIs will provide information for the last spark.ui.retainedStages stages and spark.ui.retainedJobs jobs.

Note:
This class's constructor should be considered private and may be subject to change.

  • Method Details

    • getActiveJobIds

      public int[] getActiveJobIds()
      Returns an array containing the ids of all active jobs.

      This method does not guarantee the order of the elements in its result.

      Returns:
      (undocumented)

    • getActiveStageIds

      public int[] getActiveStageIds()
      Returns an array containing the ids of all active stages.

      This method does not guarantee the order of the elements in its result.

      Returns:
      (undocumented)

    • getJobIdsForGroup

      public int[] getJobIdsForGroup(String jobGroup)
      Return a list of all known jobs in a particular job group. If jobGroup is null, then returns all known jobs that are not associated with a job group.

      The returned list may contain running, failed, and completed jobs, and may vary across invocations of this method. This method does not guarantee the order of the elements in its result.

      Parameters:
      jobGroup - (undocumented)
      Returns:
      (undocumented)

    • getJobInfo

      public SparkJobInfo getJobInfo(int jobId)
      Returns job information, or null if the job info could not be found or was garbage collected.
      Parameters:
      jobId - (undocumented)
      Returns:
      (undocumented)

    • getStageInfo

      public SparkStageInfo getStageInfo(int stageId)
      Returns stage information, or null if the stage info could not be found or was garbage collected.
      Parameters:
      stageId - (undocumented)
      Returns:
      (undocumented)