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Comment:Moved tasks_queue into main.db
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SHA1: 5af4229eb484e4703120e39e1e2221a6a4946225
User & Date: matt on 2014-11-30 22:30:32
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Context
2014-11-30
22:55
Fixed couple problems with tasks_queue migration check-in: 35909bedef user: matt tags: archiving
22:30
Moved tasks_queue into main.db check-in: 5af4229eb4 user: matt tags: archiving
13:02
Merging in v1.60 check-in: b2aa3b8559 user: matt tags: archiving
Changes

Modified api.scm from [b8269d4337] to [5e80ce2ed9].

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    ((sync-inmem->db)               (db:sync-touched dbstruct run-id force-sync: #t))
    ((sdb-qry)                      (apply sdb:qry params))

    ;; TESTMETA
    ((testmeta-get-record)       (apply db:testmeta-get-record dbstruct params))
    ((testmeta-add-record)       (apply db:testmeta-add-record dbstruct params))
    ((testmeta-update-field)     (apply db:testmeta-update-field dbstruct params))






    (else
     (list "ERROR" 0))))

;; http-server  send-response
;;                 api:process-request
;;                    db:*
;;







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    ((sync-inmem->db)               (db:sync-touched dbstruct run-id force-sync: #t))
    ((sdb-qry)                      (apply sdb:qry params))

    ;; TESTMETA
    ((testmeta-get-record)       (apply db:testmeta-get-record dbstruct params))
    ((testmeta-add-record)       (apply db:testmeta-add-record dbstruct params))
    ((testmeta-update-field)     (apply db:testmeta-update-field dbstruct params))

    ;; TASKS 
    ((find-task-queue-records)   (apply tasks:find-task-queue-records dbstruct params))
    ((tasks-add)                 (apply tasks:add dbstruct params))   
    ((tasks-set-state-given-param-key) (apply tasks:set-state-given-param-key dbstruct params))

    (else
     (list "ERROR" 0))))

;; http-server  send-response
;;                 api:process-request
;;                    db:*
;;

Modified db.scm from [76cec30135] to [3911c1048a].

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                                     reviewed    TIMESTAMP,
                                     iterated    TEXT DEFAULT '',
                                     avg_runtime REAL,
                                     avg_disk    REAL,
                                     tags        TEXT DEFAULT '',
                                     jobgroup    TEXT DEFAULT 'default',
                                CONSTRAINT test_meta_constraint UNIQUE (testname));")













       (sqlite3:execute db (conc "CREATE INDEX IF NOT EXISTS runs_index ON runs (runname" (if havekeys "," "") keystr ");"))
       ;; (sqlite3:execute db "CREATE VIEW runs_tests AS SELECT * FROM runs INNER JOIN tests ON runs.id=tests.run_id;")
       (sqlite3:execute db "CREATE TABLE IF NOT EXISTS extradat (id INTEGER PRIMARY KEY, run_id INTEGER, key TEXT, val TEXT);")
       (sqlite3:execute db "CREATE TABLE IF NOT EXISTS metadat (id INTEGER PRIMARY KEY, var TEXT, val TEXT,
                                  CONSTRAINT metadat_constraint UNIQUE (var));")
       (sqlite3:execute db "CREATE TABLE IF NOT EXISTS access_log (id INTEGER PRIMARY KEY, user TEXT, accessed TIMESTAMP, args TEXT);")
       ;; Must do this *after* running patch db !! No more. 







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                                     reviewed    TIMESTAMP,
                                     iterated    TEXT DEFAULT '',
                                     avg_runtime REAL,
                                     avg_disk    REAL,
                                     tags        TEXT DEFAULT '',
                                     jobgroup    TEXT DEFAULT 'default',
                                CONSTRAINT test_meta_constraint UNIQUE (testname));")
       (sqlite3:execute db "CREATE TABLE IF NOT EXISTS tasks_queue (id INTEGER PRIMARY KEY,
                                action TEXT DEFAULT '',
                                owner TEXT,
                                state TEXT DEFAULT 'new',
                                target TEXT DEFAULT '',
                                name TEXT DEFAULT '',
                                testpatt TEXT DEFAULT '',
                                keylock TEXT,
                                params TEXT,
                                creation_time TIMESTAMP,
                                execution_time TIMESTAMP);")
       ;; move this clean up call somewhere else
       (sqlite3:execute db "DELETE FROM tasks_queue WHERE state='done' AND creation_time < ?;" (- (current-seconds)(* 24 60 60))) ;; remove older than 24 hrs
       (sqlite3:execute db (conc "CREATE INDEX IF NOT EXISTS runs_index ON runs (runname" (if havekeys "," "") keystr ");"))
       ;; (sqlite3:execute db "CREATE VIEW runs_tests AS SELECT * FROM runs INNER JOIN tests ON runs.id=tests.run_id;")
       (sqlite3:execute db "CREATE TABLE IF NOT EXISTS extradat (id INTEGER PRIMARY KEY, run_id INTEGER, key TEXT, val TEXT);")
       (sqlite3:execute db "CREATE TABLE IF NOT EXISTS metadat (id INTEGER PRIMARY KEY, var TEXT, val TEXT,
                                  CONSTRAINT metadat_constraint UNIQUE (var));")
       (sqlite3:execute db "CREATE TABLE IF NOT EXISTS access_log (id INTEGER PRIMARY KEY, user TEXT, accessed TIMESTAMP, args TEXT);")
       ;; Must do this *after* running patch db !! No more. 

Modified rmt.scm from [0582204ff9] to [bd81b52c68].

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  (rmt:send-receive 'testmeta-update-field #f (list test-name fld val)))

(define (rmt:test-data-rollup run-id test-id status)
  (rmt:send-receive 'test-data-rollup run-id (list run-id test-id status)))

(define (rmt:csv->test-data run-id test-id csvdata)
  (rmt:send-receive 'csv->test-data run-id (list run-id test-id csvdata)))




















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  (rmt:send-receive 'testmeta-update-field #f (list test-name fld val)))

(define (rmt:test-data-rollup run-id test-id status)
  (rmt:send-receive 'test-data-rollup run-id (list run-id test-id status)))

(define (rmt:csv->test-data run-id test-id csvdata)
  (rmt:send-receive 'csv->test-data run-id (list run-id test-id csvdata)))

;;======================================================================
;;  T A S K S
;;======================================================================

(define (rmt:tasks-find-task-queue-records target run-name test-patt state-patt action-patt)
  (rmt:send-receive 'find-task-queue-records #f (list target run-name test-patt state-patt action-patt)))

(define (rmt:tasks-add action owner target runname testpatt params)
  (rmt:send-receive 'tasks-add #f (list action owner target runname testpatt params)))

(define (rmt:tasks-set-state-given-param-key dbstruct param-key new-state)
  (rmt:send-receive 'tasks-set-state-given-param-key #f (list  param-key new-state)))

Modified runs.scm from [396462afab] to [22b3739b80].

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			   (print "Received signal " signum ", cleaning up before exit. Please wait...")
			   (let ((tdbdat (tasks:open-db)))
			     (tasks:set-state-given-param-key (db:delay-if-busy tdbdat) task-key "killed"))
			   (print "Killed by signal " signum ". Exiting")
			   (exit)))

    ;; register this run in monitor.db
    (tasks:add (db:delay-if-busy tdbdat) "run-tests" user target runname test-patts task-key) ;; params)
    (tasks:set-state-given-param-key (db:delay-if-busy tdbdat) task-key "running")
    (runs:set-megatest-env-vars run-id inkeys: keys inrunname: runname) ;; these may be needed by the launching process
    (if (file-exists? runconfigf)
	(setup-env-defaults runconfigf run-id *already-seen-runconfig-info* keyvals target)
	(debug:print 0 "WARNING: You do not have a run config file: " runconfigf))

    ;; Now generate all the tests lists
    (set! all-tests-registry (tests:get-all))







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			   (print "Received signal " signum ", cleaning up before exit. Please wait...")
			   (let ((tdbdat (tasks:open-db)))
			     (tasks:set-state-given-param-key (db:delay-if-busy tdbdat) task-key "killed"))
			   (print "Killed by signal " signum ". Exiting")
			   (exit)))

    ;; register this run in monitor.db
    (rmt:tasks-add "run-tests" user target runname test-patts task-key) ;; params)
    (rmt:tasks-set-state-given-param-key (db:delay-if-busy tdbdat) task-key "running")
    (runs:set-megatest-env-vars run-id inkeys: keys inrunname: runname) ;; these may be needed by the launching process
    (if (file-exists? runconfigf)
	(setup-env-defaults runconfigf run-id *already-seen-runconfig-info* keyvals target)
	(debug:print 0 "WARNING: You do not have a run config file: " runconfigf))

    ;; Now generate all the tests lists
    (set! all-tests-registry (tests:get-all))
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		  (if (not (hash-table-ref/default flags "-preclean" #f))
		      (hash-table-set! flags "-preclean" #t))
		  (if (not (hash-table-ref/default flags "-rerun" #f))
		      (hash-table-set! flags "-rerun" "STUCK/DEAD,n/a,ZERO_ITEMS"))
		  (runs:run-tests target runname test-patts user flags run-count: (- run-count 1)))))
	  (debug:print-info 0 "No tests to run")))
    (debug:print-info 4 "All done by here")
    (tasks:set-state-given-param-key (db:delay-if-busy tdbdat) task-key "done")
    ;; (sqlite3:finalize! tasks-db)
    ))


;; loop logic. These are used in runs:run-tests-queue to make it a bit more readable.
;;
;; If reg not full and have items in tal then loop with (car tal)(cdr tal) reg reruns







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		  (if (not (hash-table-ref/default flags "-preclean" #f))
		      (hash-table-set! flags "-preclean" #t))
		  (if (not (hash-table-ref/default flags "-rerun" #f))
		      (hash-table-set! flags "-rerun" "STUCK/DEAD,n/a,ZERO_ITEMS"))
		  (runs:run-tests target runname test-patts user flags run-count: (- run-count 1)))))
	  (debug:print-info 0 "No tests to run")))
    (debug:print-info 4 "All done by here")
    (rmt:tasks-set-state-given-param-key (db:delay-if-busy tdbdat) task-key "done")
    ;; (sqlite3:finalize! tasks-db)
    ))


;; loop logic. These are used in runs:run-tests-queue to make it a bit more readable.
;;
;; If reg not full and have items in tal then loop with (car tal)(cdr tal) reg reruns
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	   (if (not (null? tests))
	       (begin
		 (case action
		   ((remove-runs)
		    (if (tasks:need-server run-id)(tasks:start-and-wait-for-server tdbdat run-id 10))
		    ;; seek and kill in flight -runtests with % as testpatt here
		    (if (equal? testpatt "%")
			(tasks:kill-runner (db:delay-if-busy tdbdat) target run-name)
			(debug:print 0 "not attempting to kill any run launcher processes as testpatt is " testpatt))
		    (debug:print 1 "Removing tests for run: " runkey " " (db:get-value-by-header run header "runname")))
		   ((set-state-status)
		    (if (tasks:need-server run-id)(tasks:start-and-wait-for-server tdbdat run-id 10))
		    (debug:print 1 "Modifying state and staus for tests for run: " runkey " " (db:get-value-by-header run header "runname")))
		   ((print-run)
		    (debug:print 1 "Printing info for run " runkey ", run=" run ", tests=" tests ", header=" header)







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	   (if (not (null? tests))
	       (begin
		 (case action
		   ((remove-runs)
		    (if (tasks:need-server run-id)(tasks:start-and-wait-for-server tdbdat run-id 10))
		    ;; seek and kill in flight -runtests with % as testpatt here
		    (if (equal? testpatt "%")
			(tasks:kill-runner target run-name)
			(debug:print 0 "not attempting to kill any run launcher processes as testpatt is " testpatt))
		    (debug:print 1 "Removing tests for run: " runkey " " (db:get-value-by-header run header "runname")))
		   ((set-state-status)
		    (if (tasks:need-server run-id)(tasks:start-and-wait-for-server tdbdat run-id 10))
		    (debug:print 1 "Modifying state and staus for tests for run: " runkey " " (db:get-value-by-header run header "runname")))
		   ((print-run)
		    (debug:print 1 "Printing info for run " runkey ", run=" run ", tests=" tests ", header=" header)

Modified tasks.scm from [af4bc3dbb1] to [a07c5a816e].

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;;  strftime('%m/%d/%Y %H:%M:%S','now','localtime')

(use sqlite3 srfi-1 posix regex regex-case srfi-69 dot-locking format)
(import (prefix sqlite3 sqlite3:))

(declare (unit tasks))
(declare (uses db))

(declare (uses common))

(include "task_records.scm")

;;======================================================================
;; Tasks db
;;======================================================================







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;;  strftime('%m/%d/%Y %H:%M:%S','now','localtime')

(use sqlite3 srfi-1 posix regex regex-case srfi-69 dot-locking format)
(import (prefix sqlite3 sqlite3:))

(declare (unit tasks))
(declare (uses db))
(declare (uses rmt))
(declare (uses common))

(include "task_records.scm")

;;======================================================================
;; Tasks db
;;======================================================================
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	     (set! *db-write-access* write-access)) ;; only unset so other db's also can use this control
	 (sqlite3:set-busy-handler! mdb handler)
	 (db:set-sync mdb) ;; (sqlite3:execute mdb (conc "PRAGMA synchronous = 0;"))
	 ;;  (if (or (and (not exists)
	 ;; 	      (file-write-access? *toppath*))
	 ;; 	 (not (file-read-access? dbpath)))
	 ;;      (begin



	 (sqlite3:execute mdb "CREATE TABLE IF NOT EXISTS tasks_queue (id INTEGER PRIMARY KEY,
                                action TEXT DEFAULT '',
                                owner TEXT,
                                state TEXT DEFAULT 'new',
                                target TEXT DEFAULT '',
                                name TEXT DEFAULT '',
                                testpatt TEXT DEFAULT '',
                                keylock TEXT,
                                params TEXT,
                                creation_time TIMESTAMP,
                                execution_time TIMESTAMP);")
	 (sqlite3:execute mdb "CREATE TABLE IF NOT EXISTS monitors (id INTEGER PRIMARY KEY,
                                pid INTEGER,
                                start_time TIMESTAMP,
                                last_update TIMESTAMP,
                                hostname TEXT,
                                username TEXT,
                               CONSTRAINT monitors_constraint UNIQUE (pid,hostname));")







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	     (set! *db-write-access* write-access)) ;; only unset so other db's also can use this control
	 (sqlite3:set-busy-handler! mdb handler)
	 (db:set-sync mdb) ;; (sqlite3:execute mdb (conc "PRAGMA synchronous = 0;"))
	 ;;  (if (or (and (not exists)
	 ;; 	      (file-write-access? *toppath*))
	 ;; 	 (not (file-read-access? dbpath)))
	 ;;      (begin
	 ;; 
	 ;; TASKS QUEUE MOVED TO main.db
	 ;;
	 ;; (sqlite3:execute mdb "CREATE TABLE IF NOT EXISTS tasks_queue (id INTEGER PRIMARY KEY,
         ;;                        action TEXT DEFAULT '',
         ;;                        owner TEXT,
         ;;                        state TEXT DEFAULT 'new',
         ;;                        target TEXT DEFAULT '',
         ;;                        name TEXT DEFAULT '',
         ;;                        testpatt TEXT DEFAULT '',
         ;;                        keylock TEXT,
         ;;                        params TEXT,
         ;;                        creation_time TIMESTAMP,
         ;;                        execution_time TIMESTAMP);")
	 (sqlite3:execute mdb "CREATE TABLE IF NOT EXISTS monitors (id INTEGER PRIMARY KEY,
                                pid INTEGER,
                                start_time TIMESTAMP,
                                last_update TIMESTAMP,
                                hostname TEXT,
                                username TEXT,
                               CONSTRAINT monitors_constraint UNIQUE (pid,hostname));")
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                                  hostname TEXT,
                                  cmdline TEXT,
                                  login_time TIMESTAMP,
                                  logout_time TIMESTAMP DEFAULT -1,
                                CONSTRAINT clients_constraint UNIQUE (pid,hostname));")
	       
	       ;))
	 (sqlite3:execute mdb "DELETE FROM tasks_queue WHERE state='done' AND creation_time < ?;" (- (current-seconds)(* 24 60 60))) ;; remove older than 24 hrs
	 (set! *task-db* (cons mdb dbpath))
	 *task-db*))))

;;======================================================================
;; Server and client management
;;======================================================================








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                                  hostname TEXT,
                                  cmdline TEXT,
                                  login_time TIMESTAMP,
                                  logout_time TIMESTAMP DEFAULT -1,
                                CONSTRAINT clients_constraint UNIQUE (pid,hostname));")
	       
	       ;))

	 (set! *task-db* (cons mdb dbpath))
	 *task-db*))))

;;======================================================================
;; Server and client management
;;======================================================================

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	  (debug:print-info 0 "Killing server " server-id " for run-id " run-id " on host " hostname " with pid " pid)
	  (tasks:kill-server hostname pid)
	  (tasks:server-delete-record (db:delay-if-busy tdbdat) server-id tag) )
	(debug:print-info 0 "No server found for run-id " run-id ", nothing to kill"))
    ;; (sqlite3:finalize! tdb)
    ))
    

;;======================================================================
;; Tasks and Task monitors
;;======================================================================


;;======================================================================
;; Tasks
;;======================================================================



;;======================================================================
;; Task Monitors
;;======================================================================

(define (tasks:register-monitor db mdb)
  (let* ((pid (current-process-id))
	 (hostname (get-host-name))
	 (userinfo (user-information (current-user-id)))
	 (username (car userinfo)))
    (print "Register monitor, pid: " pid ", hostname: " hostname ", username: " username)
    (sqlite3:execute mdb "INSERT INTO monitors (pid,start_time,last_update,hostname,username) VALUES (?,strftime('%s','now'),strftime('%s','now'),?,?);"
		     pid hostname username)))

(define (tasks:get-num-alive-monitors mdb)
  (let ((res 0))
    (sqlite3:for-each-row 
     (lambda (count)
       (set! res count))
     mdb
     "SELECT count(id) FROM monitors WHERE last_update < (strftime('%s','now') - 300) AND username=?;"
     (car (user-information (current-user-id))))
    res))

;; register a task
(define (tasks:add mdb action owner target runname testpatt params)
  (sqlite3:execute mdb "INSERT INTO tasks_queue (action,owner,state,target,name,testpatt,params,creation_time,execution_time)
                       VALUES (?,?,'new',?,?,?,?,strftime('%s','now'),0);" 
		   action
		   owner
		   target
		   runname
		   testpatt
		   (if params params "")))

(define (keys:key-vals-hash->target keys key-params)
  (let ((tmp (hash-table-ref/default key-params (vector-ref (car keys) 0) "")))
    (if (> (length keys) 1)
	(for-each (lambda (key)
		    (set! tmp (conc tmp "/" (hash-table-ref/default key-params (vector-ref key 0) ""))))
		  (cdr keys)))
    tmp))
								
;; for use from the gui
(define (tasks:add-from-params mdb action keys key-params var-params)
  (let ((target    (keys:key-vals-hash->target keys key-params))
	(owner     (car (user-information (current-user-id))))
	(runname   (hash-table-ref/default var-params "runname" #f))
	(testpatts (hash-table-ref/default var-params "testpatts" "%"))
	(params    (hash-table-ref/default var-params "params"    "")))
    (tasks:add mdb action owner target runname testpatts params)))

;; return one task from those who are 'new' OR 'waiting' AND more than 10sec old
;;
(define (tasks:snag-a-task mdb)
  (let ((res    #f)
	(keytxt (conc (current-process-id) "-" (get-host-name) "-" (car (user-information (current-user-id))))))

    ;; first randomly set a new to pid-hostname-hostname
    (sqlite3:execute
     mdb 
     "UPDATE tasks_queue SET keylock=? WHERE id IN
        (SELECT id FROM tasks_queue 
           WHERE state='new' OR 
                 (state='waiting' AND (strftime('%s','now')-execution_time) > 10) OR
                 state='reset'
           ORDER BY RANDOM() LIMIT 1);" keytxt)

    (sqlite3:for-each-row
     (lambda (id . rem)
       (set! res (apply vector id rem)))
     mdb
     "SELECT id,action,owner,state,target,name,test,item,params,creation_time,execution_time FROM tasks_queue WHERE keylock=? ORDER BY execution_time ASC LIMIT 1;" keytxt)
    (if res ;; yep, have work to be done
	(begin
	  (sqlite3:execute mdb "UPDATE tasks_queue SET state='inprogress',execution_time=strftime('%s','now') WHERE id=?;"
			   (tasks:task-get-id res))
	  res)
	#f)))

(define (tasks:reset-stuck-tasks mdb)
  (let ((res '()))
    (sqlite3:for-each-row
     (lambda (id delta)
       (set! res (cons id res)))
     mdb
     "SELECT id,strftime('%s','now')-execution_time AS delta FROM tasks_queue WHERE state='inprogress' AND delta>700 ORDER BY delta DESC LIMIT 2;")
    (sqlite3:execute 
     mdb 
     (conc "UPDATE tasks_queue SET state='reset' WHERE id IN ('" (string-intersperse (map conc res) "','") "');"))))

;; return all tasks in the tasks_queue table
;;
(define (tasks:get-tasks mdb types states)
  (let ((res '()))
    (sqlite3:for-each-row
     (lambda (id . rem)
       (set! res (cons (apply vector id rem) res)))
     mdb
     (conc "SELECT id,action,owner,state,target,name,test,item,params,creation_time,execution_time 
               FROM tasks_queue "
               ;; WHERE  
               ;;   state IN " statesstr " AND 
	       ;;   action IN " actionsstr 
	   " ORDER BY creation_time DESC;"))
    res))

;; remove tasks given by a string of numbers comma separated
(define (tasks:remove-queue-entries mdb task-ids)
  (sqlite3:execute mdb (conc "DELETE FROM tasks_queue WHERE id IN (" task-ids ");")))

;; 
(define (tasks:start-monitor db mdb)
  (if (> (tasks:get-num-alive-monitors mdb) 2) ;; have two running, no need for more
      (debug:print-info 1 "Not starting monitor, already have more than two running")
      (let* ((megatestdb     (conc *toppath* "/megatest.db"))
	     (monitordbf     (conc (configf:lookup *configdat* "setup" "linktree") "/.db/monitor.db"))
	     (last-db-update 0)) ;; (file-modification-time megatestdb)))
	(task:register-monitor mdb)
	(let loop ((count      0)
		   (next-touch 0)) ;; next-touch is the time where we need to update last_update
	  ;; if the db has been modified we'd best look at the task queue
	  (let ((modtime (file-modification-time megatestdbpath )))
	    (if (> modtime last-db-update)
		(tasks:process-queue db mdb last-db-update megatestdb next-touch))
	    ;; WARNING: Possible race conditon here!!
	    ;; should this update be immediately after the task-get-action call above?
	    (if (> (current-seconds) next-touch)
		(begin
		  (tasks:monitors-update mdb)
		  (loop (+ count 1)(+ (current-seconds) 240)))
		(loop (+ count 1) next-touch)))))))
      
(define (tasks:process-queue db mdb)
  (let* ((task   (tasks:snag-a-task mdb))
	 (action (if task (tasks:task-get-action task) #f)))
    (if action (print "tasks:process-queue task: " task))
    (if action
	(case (string->symbol action)
	  ((run)       (tasks:start-run   db mdb task))
	  ((remove)    (tasks:remove-runs db mdb task))
	  ((lock)      (tasks:lock-runs   db mdb task))
	  ;; ((monitor)   (tasks:start-monitor db task))
	  ((rollup)    (tasks:rollup-runs db mdb task))
	  ((updatemeta)(tasks:update-meta db mdb task))
	  ((kill)      (tasks:kill-monitors db mdb task))))))

(define (tasks:get-monitors mdb)
  (let ((res '()))
    (sqlite3:for-each-row
     (lambda (a . rem)
       (set! res (cons (apply vector a rem) res)))
     mdb
     "SELECT id,pid,strftime('%m/%d/%Y %H:%M',datetime(start_time,'unixepoch'),'localtime'),strftime('%m/%d/%Y %H:%M:%S',datetime(last_update,'unixepoch'),'localtime'),hostname,username FROM monitors ORDER BY last_update ASC;")
    (reverse res)
    ))

(define (tasks:tasks->text tasks)
  (let ((fmtstr "~10a~10a~10a~12a~20a~12a~12a~10a"))
    (conc (format #f fmtstr "id" "action" "owner" "state" "target" "runname" "testpatts" "params") "\n"
	  (string-intersperse 
	   (map (lambda (task)
		  (format #f fmtstr
			  (tasks:task-get-id     task)
			  (tasks:task-get-action task)
			  (tasks:task-get-owner  task)
			  (tasks:task-get-state  task)
			  (tasks:task-get-target task)
			  (tasks:task-get-name   task)
			  (tasks:task-get-test   task)
			  ;; (tasks:task-get-item   task)
			  (tasks:task-get-params task)))
		tasks) "\n"))))
   
(define (tasks:monitors->text-table monitors)
  (let ((fmtstr "~4a~8a~20a~20a~10a~10a"))
    (conc (format #f fmtstr "id" "pid" "start time" "last update" "hostname" "user") "\n"
	  (string-intersperse 
	   (map (lambda (monitor)
		  (format #f fmtstr
			  (tasks:monitor-get-id          monitor)







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	  (debug:print-info 0 "Killing server " server-id " for run-id " run-id " on host " hostname " with pid " pid)
	  (tasks:kill-server hostname pid)
	  (tasks:server-delete-record (db:delay-if-busy tdbdat) server-id tag) )
	(debug:print-info 0 "No server found for run-id " run-id ", nothing to kill"))
    ;; (sqlite3:finalize! tdb)
    ))
    

;;======================================================================


;; M O N I T O R S

;;======================================================================
















































































































(define (tasks:remove-monitor-record mdb)

  (sqlite3:execute mdb "DELETE FROM monitors WHERE pid=? AND hostname=?;"
















		   (current-process-id)




		   (get-host-name)))














(define (tasks:get-monitors mdb)
  (let ((res '()))
    (sqlite3:for-each-row
     (lambda (a . rem)
       (set! res (cons (apply vector a rem) res)))
     mdb
     "SELECT id,pid,strftime('%m/%d/%Y %H:%M',datetime(start_time,'unixepoch'),'localtime'),strftime('%m/%d/%Y %H:%M:%S',datetime(last_update,'unixepoch'),'localtime'),hostname,username FROM monitors ORDER BY last_update ASC;")
    (reverse res)
    ))


















(define (tasks:monitors->text-table monitors)
  (let ((fmtstr "~4a~8a~20a~20a~10a~10a"))
    (conc (format #f fmtstr "id" "pid" "start time" "last update" "hostname" "user") "\n"
	  (string-intersperse 
	   (map (lambda (monitor)
		  (format #f fmtstr
			  (tasks:monitor-get-id          monitor)
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     (lambda (id pid host last-update delta)
       (print "Going to delete stale record for monitor with pid " pid " on host " host " last updated " delta " seconds ago")
       (set! deadlist (cons id deadlist)))
     mdb 
     "SELECT id,pid,hostname,last_update,strftime('%s','now')-last_update AS delta FROM monitors WHERE delta > 700;")
    (sqlite3:execute mdb (conc "DELETE FROM monitors WHERE id IN ('" (string-intersperse (map conc deadlist) "','") "');")))
  )




















(define (tasks:remove-monitor-record mdb)



















  (sqlite3:execute mdb "DELETE FROM monitors WHERE pid=? AND hostname=?;"






		   (current-process-id)


		   (get-host-name)))








































































































































(define (tasks:set-state mdb task-id state)



  (sqlite3:execute mdb "UPDATE tasks_queue SET state=? WHERE id=?;" 
		   state 
		   task-id))

;;======================================================================
;; Access using task key (stored in params; (hash-table->alist flags) hostname pid
;;======================================================================

(define (tasks:param-key->id mdb task-params)



  (handle-exceptions
   exn
   #f
   (sqlite3:first-result mdb "SELECT id FROM tasks_queue WHERE params LIKE ?;" task-params)))


(define (tasks:set-state-given-param-key mdb param-key new-state)



  (sqlite3:execute mdb "UPDATE tasks_queue SET state=? WHERE params LIKE ?;" new-state param-key))

(define (tasks:get-records-given-param-key mdb param-key state-patt action-patt test-patt)



  (handle-exceptions
   exn
   '()
   (sqlite3:first-row mdb "SELECT id,action,owner,state,target,name,testpatt,keylock,params WHERE
         params LIKE ? AND state LIKE ? AND action LIKE ? AND testpatt LIKE ?;"
		      param-key state-patt action-patt test-patt)))


;;======================================================================
;; Rogue items, no place to put these yet
;;======================================================================

(define (tasks:find-task-queue-records mdb target run-name test-patt state-patt action-patt)
  ;; (handle-exceptions
  ;;  exn
  ;;  '()
  ;;  (sqlite3:first-row

  (let ((res '()))
    (sqlite3:for-each-row 
     (lambda (a . b)
       (set! res (cons (cons a b) res)))
     mdb "SELECT id,action,owner,state,target,name,testpatt,keylock,params FROM tasks_queue 
       WHERE
         target = ? AND name = ? AND state LIKE ? AND action LIKE ? AND testpatt LIKE ?;"
     target run-name state-patt action-patt test-patt)
    res)) ;; )





(define (tasks:kill-runner mdb target run-name)
  (let ((records    (tasks:find-task-queue-records mdb target run-name "%" "running" "run-tests"))
	(hostpid-rx (regexp "\\s+(\\w+)\\s+(\\d+)$"))) ;; host pid is at end of param string
    (if (null? records)
	(debug:print 0 "No run launching processes found for " target " / " run-name)
	(debug:print 0 "Found " (length records) " run(s) to kill."))
    (for-each 
     (lambda (record)
       (let* ((param-key (list-ref record 8))







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     (lambda (id pid host last-update delta)
       (print "Going to delete stale record for monitor with pid " pid " on host " host " last updated " delta " seconds ago")
       (set! deadlist (cons id deadlist)))
     mdb 
     "SELECT id,pid,hostname,last_update,strftime('%s','now')-last_update AS delta FROM monitors WHERE delta > 700;")
    (sqlite3:execute mdb (conc "DELETE FROM monitors WHERE id IN ('" (string-intersperse (map conc deadlist) "','") "');")))
  )
(define (tasks:register-monitor db mdb)
  (let* ((pid (current-process-id))
	 (hostname (get-host-name))
	 (userinfo (user-information (current-user-id)))
	 (username (car userinfo)))
    (print "Register monitor, pid: " pid ", hostname: " hostname ", username: " username)
    (sqlite3:execute mdb "INSERT INTO monitors (pid,start_time,last_update,hostname,username) VALUES (?,strftime('%s','now'),strftime('%s','now'),?,?);"
		     pid hostname username)))

(define (tasks:get-num-alive-monitors mdb)
  (let ((res 0))
    (sqlite3:for-each-row 
     (lambda (count)
       (set! res count))
     mdb
     "SELECT count(id) FROM monitors WHERE last_update < (strftime('%s','now') - 300) AND username=?;"
     (car (user-information (current-user-id))))
    res))

;; 
(define (tasks:start-monitor db mdb)
  (if (> (tasks:get-num-alive-monitors mdb) 2) ;; have two running, no need for more
      (debug:print-info 1 "Not starting monitor, already have more than two running")
      (let* ((megatestdb     (conc *toppath* "/megatest.db"))
	     (monitordbf     (conc (configf:lookup *configdat* "setup" "linktree") "/.db/monitor.db"))
	     (last-db-update 0)) ;; (file-modification-time megatestdb)))
	(task:register-monitor mdb)
	(let loop ((count      0)
		   (next-touch 0)) ;; next-touch is the time where we need to update last_update
	  ;; if the db has been modified we'd best look at the task queue
	  (let ((modtime (file-modification-time megatestdbpath )))
	    (if (> modtime last-db-update)
		(tasks:process-queue db mdb last-db-update megatestdb next-touch))
	    ;; WARNING: Possible race conditon here!!
	    ;; should this update be immediately after the task-get-action call above?
	    (if (> (current-seconds) next-touch)
		(begin
		  (tasks:monitors-update mdb)
		  (loop (+ count 1)(+ (current-seconds) 240)))
		(loop (+ count 1) next-touch)))))))
      
;;======================================================================
;; T A S K S   Q U E U E
;;
;;   NOTE:: These operate on task_queue which is in main.db
;;
;;======================================================================

;; NOTE: It might be good to add one more layer of checking to ensure
;;       that no task gets run in parallel.



;; register a task
(define (tasks:add dbstruct action owner target runname testpatt params)
  (db:with-db 
   dbstruct #f #t
   (lambda (db)
     (sqlite3:execute db "INSERT INTO tasks_queue (action,owner,state,target,name,testpatt,params,creation_time,execution_time)
                             VALUES (?,?,'new',?,?,?,?,strftime('%s','now'),0);" 
		      action
		      owner
		      target
		      runname
		      testpatt
		      (if params params "")))))

(define (keys:key-vals-hash->target keys key-params)
  (let ((tmp (hash-table-ref/default key-params (vector-ref (car keys) 0) "")))
    (if (> (length keys) 1)
	(for-each (lambda (key)
		    (set! tmp (conc tmp "/" (hash-table-ref/default key-params (vector-ref key 0) ""))))
		  (cdr keys)))
    tmp))
								
;; for use from the gui, not ported
;;
;; (define (tasks:add-from-params mdb action keys key-params var-params)
;;   (let ((target    (keys:key-vals-hash->target keys key-params))
;; 	(owner     (car (user-information (current-user-id))))
;; 	(runname   (hash-table-ref/default var-params "runname" #f))
;; 	(testpatts (hash-table-ref/default var-params "testpatts" "%"))
;; 	(params    (hash-table-ref/default var-params "params"    "")))
;;     (tasks:add mdb action owner target runname testpatts params)))

;; return one task from those who are 'new' OR 'waiting' AND more than 10sec old
;;
(define (tasks:snag-a-task dbstruct)
  (let ((res    #f)
	(keytxt (conc (current-process-id) "-" (get-host-name) "-" (car (user-information (current-user-id))))))
    (db:with-db
     dbstruct #f #t
     (lambda (db)
       ;; first randomly set a new to pid-hostname-hostname
       (sqlite3:execute
	db 
	"UPDATE tasks_queue SET keylock=? WHERE id IN
           (SELECT id FROM tasks_queue 
              WHERE state='new' OR 
                    (state='waiting' AND (strftime('%s','now')-execution_time) > 10) OR
                    state='reset'
              ORDER BY RANDOM() LIMIT 1);" keytxt)

       (sqlite3:for-each-row
	(lambda (id . rem)
	  (set! res (apply vector id rem)))
	db
	"SELECT id,action,owner,state,target,name,test,item,params,creation_time,execution_time FROM tasks_queue WHERE keylock=? ORDER BY execution_time ASC LIMIT 1;" keytxt)
       (if res ;; yep, have work to be done
	   (begin
	     (sqlite3:execute db "UPDATE tasks_queue SET state='inprogress',execution_time=strftime('%s','now') WHERE id=?;"
			      (tasks:task-get-id res))
	     res)
	   #f)))))

(define (tasks:reset-stuck-tasks dbstruct)
  (let ((res '()))
    (db:with-db
     dbstruct #f #t
     (lambda (db)
       (sqlite3:for-each-row
	(lambda (id delta)
	  (set! res (cons id res)))
	db
	"SELECT id,strftime('%s','now')-execution_time AS delta FROM tasks_queue WHERE state='inprogress' AND delta>700 ORDER BY delta DESC LIMIT 2;")
       (sqlite3:execute 
	db 
	(conc "UPDATE tasks_queue SET state='reset' WHERE id IN ('" (string-intersperse (map conc res) "','") "');")
	)))))

;; return all tasks in the tasks_queue table
;;
(define (tasks:get-tasks dbstruct types states)
  (let ((res '()))
    (db:with-db
     dbstruct #f #f
     (lambda (db)
       (sqlite3:for-each-row
	(lambda (id . rem)
	  (set! res (cons (apply vector id rem) res)))
	db
	(conc "SELECT id,action,owner,state,target,name,test,item,params,creation_time,execution_time 
                  FROM tasks_queue "
	      ;; WHERE  
	      ;;   state IN " statesstr " AND 
	      ;;   action IN " actionsstr 
	      " ORDER BY creation_time DESC;"))
       res))))

;; remove tasks given by a string of numbers comma separated
(define (tasks:remove-queue-entries dbstruct task-ids)
  (db:with-db
   dbstruct #f #t
   (lambda (db)
     (sqlite3:execute db (conc "DELETE FROM tasks_queue WHERE id IN (" task-ids ");")))))

(define (tasks:process-queue dbstruct)
  (let* ((task   (tasks:snag-a-task dbstruct))
	 (action (if task (tasks:task-get-action task) #f)))
    (if action (print "tasks:process-queue task: " task))
    (if action
	(case (string->symbol action)
	  ((run)       (tasks:start-run     dbstruct task))
	  ((remove)    (tasks:remove-runs   dbstruct task))
	  ((lock)      (tasks:lock-runs     dbstruct task))
	  ;; ((monitor)   (tasks:start-monitor db task))
	  ((rollup)    (tasks:rollup-runs   dbstruct task))
	  ((updatemeta)(tasks:update-meta   dbstruct task))
	  ((kill)      (tasks:kill-monitors dbstruct task))))))

(define (tasks:tasks->text tasks)
  (let ((fmtstr "~10a~10a~10a~12a~20a~12a~12a~10a"))
    (conc (format #f fmtstr "id" "action" "owner" "state" "target" "runname" "testpatts" "params") "\n"
	  (string-intersperse 
	   (map (lambda (task)
		  (format #f fmtstr
			  (tasks:task-get-id     task)
			  (tasks:task-get-action task)
			  (tasks:task-get-owner  task)
			  (tasks:task-get-state  task)
			  (tasks:task-get-target task)
			  (tasks:task-get-name   task)
			  (tasks:task-get-test   task)
			  ;; (tasks:task-get-item   task)
			  (tasks:task-get-params task)))
		tasks) "\n"))))
   
(define (tasks:set-state dbstruct task-id state)
  (db:with-db 
   dbstruct #f #t
   (lambda (db)
     (sqlite3:execute db "UPDATE tasks_queue SET state=? WHERE id=?;" 
		      state 
		      task-id))))

;;======================================================================
;; Access using task key (stored in params; (hash-table->alist flags) hostname pid
;;======================================================================

(define (tasks:param-key->id dbstruct task-params)
  (db:with-db
   dbstruct #f #f
   (lambda (db)
     (handle-exceptions
      exn
      #f
      (sqlite3:first-result db "SELECT id FROM tasks_queue WHERE params LIKE ?;"
			    task-params)))))

(define (tasks:set-state-given-param-key dbstruct param-key new-state)
  (db:with-db
   dbstruct #f #t
   (lambda (db)
     (sqlite3:execute db "UPDATE tasks_queue SET state=? WHERE params LIKE ?;" new-state param-key))))

(define (tasks:get-records-given-param-key dbstruct param-key state-patt action-patt test-patt)
  (db:with-db
   dbstruct #f #f
   (lambda (db)
     (handle-exceptions
      exn
      '()
      (sqlite3:first-row db "SELECT id,action,owner,state,target,name,testpatt,keylock,params WHERE
                               params LIKE ? AND state LIKE ? AND action LIKE ? AND testpatt LIKE ?;"
			 param-key state-patt action-patt test-patt)))))






(define (tasks:find-task-queue-records dbstruct target run-name test-patt state-patt action-patt)
  ;; (handle-exceptions
  ;;  exn
  ;;  '()
  ;;  (sqlite3:first-row
  (let ((db (db:delay-if-busy (db:get-db dbstruct #f)))
	(res '()))
    (sqlite3:for-each-row 
     (lambda (a . b)
       (set! res (cons (cons a b) res)))
     db "SELECT id,action,owner,state,target,name,testpatt,keylock,params FROM tasks_queue 
           WHERE
              target = ? AND name = ? AND state LIKE ? AND action LIKE ? AND testpatt LIKE ?;"
     target run-name state-patt action-patt test-patt)
    res)) ;; )

;; kill any runner processes (i.e. processes handling -runtests) that match target/runname
;; 
;; do a remote call to get the task queue info but do the killing as self here.
;;
(define (tasks:kill-runner target run-name)
  (let ((records    (rmt:find-task-queue-records target run-name "%" "running" "run-tests"))
	(hostpid-rx (regexp "\\s+(\\w+)\\s+(\\d+)$"))) ;; host pid is at end of param string
    (if (null? records)
	(debug:print 0 "No run launching processes found for " target " / " run-name)
	(debug:print 0 "Found " (length records) " run(s) to kill."))
    (for-each 
     (lambda (record)
       (let* ((param-key (list-ref record 8))
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		   (let ((old-targethost (getenv "TARGETHOST")))
		     (setenv "TARGETHOST" hostname)
		     (setenv "TARGETHOST_LOGF" "server-kills.log")
		     (system (conc "nbfake kill " pid))
		     (if old-targethost (setenv "TARGETHOST" old-targethost))
		     (unsetenv "TARGETHOST")
		     (unsetenv "TARGETHOST_LOGF"))))
	     (debug:print 0 "ERROR: no record or improper record for " target "/" run-name " in tasks_queue in monitor.db"))))
     records)))


;;======================================================================
;; The routines to process tasks
;;======================================================================

;; NOTE: It might be good to add one more layer of checking to ensure
;;       that no task gets run in parallel.

(define (tasks:start-run db mdb task)
  (let ((flags (make-hash-table)))
    (hash-table-set! flags "-rerun" "NOT_STARTED")
    (if (not (string=? (tasks:task-get-params task) ""))
	(hash-table-set! flags "-setvars" (tasks:task-get-params task)))
    (print "Starting run " task)
    ;; sillyness, just call the damn routine with the task vector and be done with it. FIXME SOMEDAY
    (runs:run-tests db
		    (tasks:task-get-target task)
		    (tasks:task-get-name   task)
		    (tasks:task-get-test   task)
		    (tasks:task-get-item   task)
		    (tasks:task-get-owner  task)
		    flags)
    (tasks:set-state mdb (tasks:task-get-id task) "waiting")))

(define (tasks:rollup-runs db mdb task)
  (let* ((flags (make-hash-table)) 
	 (keys  (db:get-keys db))
	 (keyvals (keys:target-keyval keys (tasks:task-get-target task))))
    ;; (hash-table-set! flags "-rerun" "NOT_STARTED")
    (print "Starting rollup " task)
    ;; sillyness, just call the damn routine with the task vector and be done with it. FIXME SOMEDAY
    (runs:rollup-run db
		     keys 
		     keyvals
		     (tasks:task-get-name  task)
		     (tasks:task-get-owner  task))
    (tasks:set-state mdb (tasks:task-get-id task) "waiting")))








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		   (let ((old-targethost (getenv "TARGETHOST")))
		     (setenv "TARGETHOST" hostname)
		     (setenv "TARGETHOST_LOGF" "server-kills.log")
		     (system (conc "nbfake kill " pid))
		     (if old-targethost (setenv "TARGETHOST" old-targethost))
		     (unsetenv "TARGETHOST")
		     (unsetenv "TARGETHOST_LOGF"))))
	     (debug:print 0 "ERROR: no record or improper record for " target "/" run-name " in tasks_queue in main.db"))))
     records)))









;; (define (tasks:start-run dbstruct mdb task)
;;   (let ((flags (make-hash-table)))
;;     (hash-table-set! flags "-rerun" "NOT_STARTED")
;;     (if (not (string=? (tasks:task-get-params task) ""))
;; 	(hash-table-set! flags "-setvars" (tasks:task-get-params task)))
;;     (print "Starting run " task)
;;     ;; sillyness, just call the damn routine with the task vector and be done with it. FIXME SOMEDAY
;;     (runs:run-tests db
;; 		    (tasks:task-get-target task)
;; 		    (tasks:task-get-name   task)
;; 		    (tasks:task-get-test   task)
;; 		    (tasks:task-get-item   task)
;; 		    (tasks:task-get-owner  task)
;; 		    flags)
;;     (tasks:set-state mdb (tasks:task-get-id task) "waiting")))
;; 
;; (define (tasks:rollup-runs db mdb task)
;;   (let* ((flags (make-hash-table)) 
;; 	 (keys  (db:get-keys db))
;; 	 (keyvals (keys:target-keyval keys (tasks:task-get-target task))))
;;     ;; (hash-table-set! flags "-rerun" "NOT_STARTED")
;;     (print "Starting rollup " task)
;;     ;; sillyness, just call the damn routine with the task vector and be done with it. FIXME SOMEDAY
;;     (runs:rollup-run db
;; 		     keys 
;; 		     keyvals
;; 		     (tasks:task-get-name  task)
;; 		     (tasks:task-get-owner  task))
;;     (tasks:set-state mdb (tasks:task-get-id task) "waiting")))

Modified tests/fullrun/megatest.config from [a6f800861f] to [4a5fb14ff7].

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#       to your jobgroups where N is the number of parallel runs you are likely to see
#      
sqlite3 6
blockz  10
#       to your jobgroups where N is the number of parallel runs you are likely to see
#       



































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#       to your jobgroups where N is the number of parallel runs you are likely to see
#      
sqlite3 6
blockz  10
#       to your jobgroups where N is the number of parallel runs you are likely to see
#       

#======================================================================
# Machine flavors
#
#   These specify lists of hosts or scripts to use or call for various
#   flavors of task.
#
#======================================================================

[flavors]

plain hosts: xena, phoebe
strong command: NBFAKE_HOST=zeus nbfake
arm hosts: cubian

[archive]

# use machines of these flavor
useflavors plain
targsize 2G

[archive-disks]

# Archives will be organised under these paths like this:
#  <testsuite>/<creationdate>
# Within the archive the data is structured like this:
#  <target>/<runname>/<test>/
disk0 /mfs/archives