Megatest

Check-in [7a36940463]
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Overview
Comment:Added scaffolding for test recovery feature
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Timelines: family | ancestors | descendants | both | v1.60
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SHA1: 7a3694046379ec3cb60833898d89b1637ec629ad
User & Date: matt on 2015-10-16 03:35:50
Other Links: branch diff | manifest | tags
Context
2015-10-16
18:05
Fixed direct access check-in: 990765c362 user: mrwellan tags: v1.60
03:35
Added scaffolding for test recovery feature check-in: 7a36940463 user: matt tags: v1.60
2015-10-14
22:31
Added lazy-dot check-in: 3369e3bfa0 user: matt tags: v1.60
Changes

Modified launch.scm from [86c32a2e0c] to [d1b54f5011].

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            ))
      (alist->env-vars miscprevvals)
      (alist->env-vars testprevvals)
      (alist->env-vars commonprevvals)
      launch-results))
  (change-directory *toppath*))

;; recover a test where the top controlling mtest may have died
;;
(define (launch:recover-test run-id test-id)
  ;; this function is called on the test run host via ssh
  ;;
  ;; 1. look at the process from pid
  ;;    - is it owned by calling user
  ;;    - it it's run directory correct for the test
  ;;    - is there a controlling mtest (maybe stuck)
  ;; 2. if recovery is needed watch pid
  ;;    - when it exits take the exit code and do the needful
  ;;
  (let* ((pid (rmt:test-get-top-process-id run-id test-id))
	 (psres (with-input-from-pipe
		 (conc "ps -F -u " (current-user-name) " | grep -E '" pid " ' | grep -v 'grep -E " pid "'")
		 (lambda ()
		   (read-line))))
	 (rundir (if (string? psres) ;; real process owned by user
		     (read-symbolic-link (conc "/proc/" pid "/cwd"))
		     #f)))
    ;; now wait on that process if all is correct
    ;; periodically update the db with runtime
    ;; when the process exits look at the db, if still RUNNING after 10 seconds set
    ;; state/status appropriately
    (process-wait pid)))

Modified megatest.scm from [fc50829803] to [47e41f04c2].

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			"-ping"
			"-refdb2dat"
			"-o"
			"-log"
			"-archive"
			"-since"
			"-fields"
			"-recover-test" ;; run-id,test-id - used internally to recover a test stuck in RUNNING state
			) 
		 (list  "-h" "-help" "--help"
			"-version"
		        "-force"
		        "-xterm"
		        "-showkeys"
		        "-show-keys"
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;;    - gathers host info and 
;;======================================================================

(if (args:get-arg "-execute")
    (begin
      (launch:execute (args:get-arg "-execute"))
      (set! *didsomething* #t)))

;;======================================================================
;; recover from a test where the managing mtest was killed but the underlying
;; process might still be salvageable
;;======================================================================

(if (args:get-arg "-recover-test")
    (let* ((params (string-split (args:get-arg "-recover-test") ",")))
      (if (> (length params) 1) ;; run-id and test-id
	  (let ((run-id (string->number (car params)))
		(test-id (string->number (cadr params))))
	    (if (and run-id test-id)
		(begin
		  (launch:recover-test run-id test-id)
		  (set! *didsomething* #t))
		(begin
		  (debug:print 0 "ERROR: bad run-id or test-id, must be integers")
		  (exit 1)))))))

;;======================================================================
;; Test commands (i.e. for use inside tests)
;;======================================================================

(define (megatest:step step state status logfile msg)
  (if (not (getenv "MT_CMDINFO"))