Someone was playing with the SETCLOCK command?
-Craig
Sent from my iPad
On Sep 5, 2013, at 8:24 AM, "James B. Byrne" <[log in to unmask]> wrote:
> Ten years ago I wrote a master scheduler job to automate our routine
> job submissions. With minor additions it has run without evident
> flaws. However, this past July month end the scheduler streamed the
> month-end jobs 24 hours early. A problem that has just been brought
> to my attention by our very irritated chief accountant.
>
> I have reviewed the code and I cannot see where the problem lies.
> Neither can I envisage any external cause for the 24 hour variance
> from the expected behaviour. The master scheduler reported streaming
> the job at the wrong time so the time values used by the process
> reflect the actual system time shown by the STDLISTs.
>
> The actual scheduling log entries in the master job control STDLIST
> look like this:
>
> . . .
> !
> !COMMENT
> !COMMENT ### JOB submission ###
> !COMMENT JOB Name: MEAC1307,JOBBER.HARTLYNE
> !COMMENT Streamed at: 20130731000000300
> !COMMENT Template file used: MEACTEMP.JOB.HARTLYNE
> !COMMENT Template starts at: Line 21
> !
> #J1277
> !
> !COMMENT
> !COMMENT ### JOB submission ###
> !COMMENT JOB Name: MEND1307,JOBBER.HARTLYNE
> !COMMENT Streamed at: 20130731000003100
> !COMMENT Template file used: MENDTEMP.JOB.HARTLYNE
> (2232/2774) Continue?
> !COMMENT Template starts at: Line 21
> !
> #J1278
> . . .
>
> The STDLIST spool files from these jobs have these characteristics:
>
> SPOOLID JOBNUM FILEDES PRI COPIES DEV STATE RSPFN OWNER
> FORMID JOBNAME COPSRM SECTS RECS PAGES DATE
> TIME
>
> #O172804 J1278 $STDLIST 1 1 LP READY
> JOBBER.HARTLYNE
> MEND1307 1 112 766 ~13 07/31/13
> 01:12
>
> #O172803 J1277 $STDLIST 1 1 LP READY
> JOBBER.HARTLYNE
> MEAC1307 1 112 763 ~13 07/31/13
> 01:20
>
> We use a single thread queue for these jobs so the date and time
> correspond closely enough to that reported in the STDLIST that a
> problem with the system clock does not seem to be an issue. If so then
> the problem lies in the actual scheduling code of the master job.
> That code runs inside a while loop that never ends:
>
> . . .
>
> !COMMENT Initialize the Loop time marker
> !SETVAR HL_LOOP 0000
> !
> !COMMENT Begin infinite loop for main segment of control job
> !
> !WHILE (BOUND(HL_LOOP)) DO
> !
> !COMMENT Set nominal time for this loop
> !SETVAR HL_HHMM HPHOUR * 100 + HPMINUTE
> !
> !COMMENT Set these variables based on the current date on the
> !COMMENT first pass through the loop and at midnight thereafter
> !IF HL_LOOP = 0000 THEN
> ! SETVAR HL_WOM ((HPDATE / 7) + 1)
> ! SETVAR HL_WOY ((HPDOY / 7) + 1)
> ! SETVAR HL_YYMM STR('!HPYYYYMMDD',3,4)
> !ENDIF
>
> . . .
>
> !COMMENT Stream the monthend jobs at 22:30 on monthend
> !
> !IF HPDATE > 27 &
> ! AND HL_HHMM = 2230 THEN
> !
> ! IF (NOT(BOUND(HLJOB_MENDA_FLAG))) OR &
> ! HLJOB_MENDA_FLAG <> "!HPYYYYMMDD!HL_HHMM" THEN
> !
> ! SETVAR HL_LAST_DOM FALSE
> ! XEQ *LASTDOM
> ! IF HL_LAST_DOM = TRUE THEN
> !
> ! SETVAR HLJOB_MENDA_NAME "MEAC" + "!HL_YYMM"
> ! XEQ *JOBSTRM "![HLJOB_MENDA_USER]", &
> ! "![HLJOB_MENDA_NAME]", &
> ! "![HLJOB_MENDA_FILE]", &
> ! ![HLJOB_MENDA_BEGN], &
> ! "![HLJOB_CARD]"
> !
> ! SETVAR HLJOB_MENDN_NAME "MEND" + "!HL_YYMM"
> ! XEQ *JOBSTRM "![HLJOB_MENDN_USER]", &
> ! "![HLJOB_MENDN_NAME]", &
> ! "![HLJOB_MENDN_FILE]", &
> ! ![HLJOB_MENDN_BEGN], &
> ! "![HLJOB_CARD]"
> !
> ! SETVAR HLJOB_MENDA_FLAG "!HPYYYYMMDD!HL_HHMM"
> ! ENDIF
> ! ENDIF
> !ENDIF
> !
> !
> !COMMENT End of master controller WHILE loop. Set time of loop
> !COMMENT to time of this pass
> !IF HL_LOOP <> HL_HHMM THEN
> !SETVAR HL_LOOP
> !HL_HHMM
> !ENDIF
> !
> !COMMENT Wait 20 seconds, 1 minute pause is too coarse a time interval
> ! PAUSE 20
> !ENDWHILE
>
>
> The last day of month calculator looks like this:
>
> :PRINT *LASTDOM
> setvar HL_LAST_DOM FALSE
> # Determine if "today" is the last day of the month.
> if not hpleapyear then
> setvar _eom_ "31,28,31,30,31,30,31,31,30,31,30,31"
> else
> setvar _eom_ "31,29,31,30,31,30,31,31,30,31,30,31"
> endif
> if "!hpdate" = word("![_eom_]",,hpmonth) then
> setvar HL_LAST_DOM TRUE
> setvar HL_MONTHEND_CALL str("!HPDATETIME",1,8)
> deletevar _eom_
> else
> if bound(HL_MONTHEND_CALL) then
> deletevar HL_MONTHEND_CALL
> endif
> endif
>
> The difficulty can exist in one of only two places: the LASTDOM
> routine or the actual IF THEN conditional for the entire monthend job
> submission routine. Does anyone see why this code would execute
> before 22:30 on July 31 instead of after?
>
>
> --
> *** E-Mail is NOT a SECURE channel ***
> James B. Byrne mailto:[log in to unmask]
> Harte & Lyne Limited http://www.harte-lyne.ca
> 9 Brockley Drive vox: +1 905 561 1241
> Hamilton, Ontario fax: +1 905 561 0757
> Canada L8E 3C3
>
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