Long Running Job Steps in Microsoft SQL Server

/*=============================================

Variables:
@MinHistExecutions - Minimum number of job step executions we want to consider
@MinAvgSecsDuration - Threshold for minimum job step duration we care to monitor
@HistoryStartDate - Start date for historical average
@HistoryEndDate - End date for historical average

Returns: One result set containing a list of job steps that are currently running and are running longer than two standard deviations away from their historical average. The "Min Threshold" column represents the average plus two standard deviations.

note [1] - comment this line and note [2] line if you want to report on all history for job steps
note [2] - comment just this line is you want to report on running and non-running job steps

=============================================*/

DECLARE   @HistoryStartDate datetime
  ,@HistoryEndDate datetime
  ,@MinHistExecutions int 
  ,@MinAvgSecsDuration int

SET @HistoryStartDate = '19000101'
SET @HistoryEndDate = GETDATE()
SET @MinHistExecutions = 1.0
SET @MinAvgSecsDuration = 1.0

DECLARE @currently_running_jobs TABLE (
    job_id UNIQUEIDENTIFIER NOT NULL
    ,last_run_date INT NOT NULL
    ,last_run_time INT NOT NULL
    ,next_run_date INT NOT NULL
    ,next_run_time INT NOT NULL
    ,next_run_schedule_id INT NOT NULL
    ,requested_to_run INT NOT NULL
    ,request_source INT NOT NULL
    ,request_source_id SYSNAME NULL
    ,running INT NOT NULL
    ,current_step INT NOT NULL
    ,current_retry_attempt INT NOT NULL
    ,job_state INT NOT NULL
    )

--capture details on jobs
INSERT INTO @currently_running_jobs
EXECUTE master.dbo.xp_sqlagent_enum_jobs 1,''

;WITH JobStepsHistData AS
(
  SELECT job_id, step_id
,date_executed=msdb.dbo.agent_datetime(run_date, run_time)
,secs_duration=run_duration/10000*3600
                      +run_duration%10000/100*60
                      +run_duration%100
  FROM msdb.dbo.sysjobhistory
  WHERE run_status = 1 -- Succeeded
)
,JobHistStats AS
(
  SELECT job_id, step_id
        ,AvgDuration = AVG(secs_duration*1.)
        ,AvgPlus2StDev = AVG(secs_duration*1.) + 2*stdevp(secs_duration)

  FROM JobStepsHistData
  WHERE date_executed >= DATEADD(day, DATEDIFF(day,'19000101',@HistoryStartDate),'19000101')
  AND date_executed < DATEADD(day, 1 + DATEDIFF(day,'19000101',@HistoryEndDate),'19000101') 
  GROUP BY job_id, step_id
  HAVING COUNT(*) >= @MinHistExecutions
  AND AVG(secs_duration*1.) >= @MinAvgSecsDuration
)
-- need to select from the CTE's, and join to msdb for final result
SELECT jd.job_id
      ,j.name AS [JobName]
      ,sjs.step_id
    ,sjs.step_name
      ,MAX(act.start_execution_date) AS [ExecutionDate]
      ,AvgDuration AS [Historical Avg Duration (secs)]
      ,AvgPlus2StDev AS [Min Threshhold (secs)]
FROM JobStepsHistData jd
JOIN JobHistStats jhs on jd.job_id = jhs.job_id AND jd.step_id = jhs.step_id
JOIN msdb..sysjobs j on jd.job_id = j.job_id
JOIN msdb..sysjobsteps sjs on jd.job_id = sjs.job_id AND jd.step_id = sjs.step_id
JOIN @currently_running_jobs crj ON crj.job_id = jd.job_id --see note [1] above
JOIN msdb..sysjobactivity AS act ON act.job_id = jd.job_id
AND act.stop_execution_date IS NULL
AND act.start_execution_date IS NOT NULL
WHERE DATEDIFF(SS, act.start_execution_date, GETDATE()) > AvgPlus2StDev
AND crj.job_state = 1 --see note [2] above
GROUP BY jd.job_id, j.name, sjs.step_id, sjs.step_name, AvgDuration, AvgPlus2StDev