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Comment:Fixed couple missing changes needed for server log handshaking
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | server-log-handshaking
Files: files | file ages | folders
SHA1: 5a649395770015b565caa9c55919038695cc6aca
User & Date: matt on 2017-01-28 12:25:52
Other Links: branch diff | manifest | tags
Context
2017-01-28
18:46
Fixed multiple little issues with server log handshaking check-in: cc6a49cf21 user: matt tags: server-log-handshaking
12:25
Fixed couple missing changes needed for server log handshaking check-in: 5a64939577 user: matt tags: server-log-handshaking
2017-01-27
22:47
Most needed changes made for multi-server with log handshaking. However there is a segfault ... check-in: 8a4205f90b user: matt tags: server-log-handshaking
Changes
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Modified dcommon.scm from [eb6ea73393] to [17ed94a823].

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

(use format)
(require-library iup)
(import (prefix iup iup:))
(use canvas-draw)
(import canvas-draw-iup)
(use regex typed-records)

(declare (unit dcommon))

(declare (uses megatest-version))
(declare (uses gutils))
(declare (uses db))
(declare (uses synchash))








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

(use format)
(require-library iup)
(import (prefix iup iup:))
(use canvas-draw)
(import canvas-draw-iup)
(use regex typed-records matchable)

(declare (unit dcommon))

(declare (uses megatest-version))
(declare (uses gutils))
(declare (uses db))
(declare (uses synchash))
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				     #:numcol 7
				     #:numcol-visible 7
				     #:numlin-visible 5
				     ))
	 (colnames       (list "Id" "MTver" "Pid" "Host" "Interface:OutPort" "RunTime" "State" "RunId"))
	 (updater        (lambda ()
			   (if (dashboard:monitor-changed? commondat tabdat)

			       (let ((servers (tasks:get-all-servers (db:delay-if-busy tdbdat))))
				 (iup:attribute-set! servers-matrix "NUMLIN" (length servers))
				 ;; (set! colnum 0)
				 ;; (for-each (lambda (colname)
				 ;;    	 ;; (print "colnum: " colnum " colname: " colname)
				 ;;    	 (iup:attribute-set! servers-matrix (conc "0:" colnum) colname)
				 ;;    	 (set! colnum (+ 1 colnum)))
				 ;;           colnames)
				 (set! rownum 1)
				 (for-each 
				  (lambda (server)
				    (set! colnum 0)






				    (let* ((vals (list (vector-ref server 0) ;; Id
						       (vector-ref server 9) ;; MT-Ver
						       (vector-ref server 1) ;; Pid
						       (vector-ref server 2) ;; Hostname
						       (conc (vector-ref server 3) ":" (vector-ref server 4)) ;; IP:Port
						       (seconds->hr-min-sec (- (current-seconds)(vector-ref server 6)))
						       ;; (vector-ref server 5) ;; Pubport
						       ;; (vector-ref server 10) ;; Last beat

						       ;; (vector-ref server 6) ;; Start time
						       ;; (vector-ref server 7) ;; Priority
						       ;; (vector-ref server 8) ;; State
						       (vector-ref server 8) ;; State

						       (vector-ref server 12)  ;; RunId
						       )))
				      (for-each (lambda (val)
						  (let* ((row-col (conc rownum ":" colnum))
							 (curr-val (iup:attribute servers-matrix row-col)))
						    (if (not (equal? (conc val) curr-val))
							(begin
							  (iup:attribute-set! servers-matrix row-col val)
							  (iup:attribute-set! servers-matrix "FITTOTEXT" (conc "C" colnum))))
						    (set! colnum (+ 1 colnum))))
						vals)
				      (set! rownum (+ rownum 1)))
				    (iup:attribute-set! servers-matrix "REDRAW" "ALL"))
				  servers))))))
    (set! colnum 0)
    (for-each (lambda (colname)
		(iup:attribute-set! servers-matrix (conc "0:" colnum) colname)
		(iup:attribute-set! servers-matrix "FITTOTEXT" (conc "C" colnum))
		(set! colnum (+ colnum 1)))
	      colnames)
    ;; (set! dashboard:update-servers-table updater) 








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				     #:numcol 7
				     #:numcol-visible 7
				     #:numlin-visible 5
				     ))
	 (colnames       (list "Id" "MTver" "Pid" "Host" "Interface:OutPort" "RunTime" "State" "RunId"))
	 (updater        (lambda ()
			   (if (dashboard:monitor-changed? commondat tabdat)
			       (let ((servers  (server:get-list *toppath*)))
				 ;; (tasks:get-all-servers (db:delay-if-busy tdbdat))))
				 (iup:attribute-set! servers-matrix "NUMLIN" (length servers))
				 ;; (set! colnum 0)
				 ;; (for-each (lambda (colname)
				 ;;    	 ;; (print "colnum: " colnum " colname: " colname)
				 ;;    	 (iup:attribute-set! servers-matrix (conc "0:" colnum) colname)
				 ;;    	 (set! colnum (+ 1 colnum)))
				 ;;           colnames)
				 (set! rownum 1)
				 (for-each 
				  (lambda (server)
				    (set! colnum 0)
				    (match-let (((mod-time host port start-time pid)
						 server))
				      (let* ((uptime  (- (current-seconds) mod-time))
					     (runtime (if start-time
							  (- (current-seconds) start-time)
							  0))
					     (vals (list "-"  ;; (vector-ref server 0) ;; Id
							 "-"  ;; (vector-ref server 9) ;; MT-Ver
							 pid  ;; (vector-ref server 1) ;; Pid
							 host ;; (vector-ref server 2) ;; Hostname
							 (conc host ":" port) ;; (conc (vector-ref server 3) ":" (vector-ref server 4)) ;; IP:Port

							 (seconds->hr-min-sec runtime) ;; (- (current-seconds) start-time)) ;; (vector-ref server 6)))

							 (cond
							  ((< uptime 5)  "alive")


							  ((< uptime 16) "probably alive");; less than 15 seconds since mod, call it alive (vector-ref server 8) ;; State
							  (else "dead"))
							 "-" ;; (vector-ref server 12)  ;; RunId
							 )))
					(for-each (lambda (val)
						    (let* ((row-col (conc rownum ":" colnum))
							   (curr-val (iup:attribute servers-matrix row-col)))
						      (if (not (equal? (conc val) curr-val))
							  (begin
							    (iup:attribute-set! servers-matrix row-col val)
							    (iup:attribute-set! servers-matrix "FITTOTEXT" (conc "C" colnum))))
						      (set! colnum (+ 1 colnum))))
						  vals)
					(set! rownum (+ rownum 1)))
				      (iup:attribute-set! servers-matrix "REDRAW" "ALL")))
				    (sort servers (lambda (a b)(< (car a)(car b))))))))))
    (set! colnum 0)
    (for-each (lambda (colname)
		(iup:attribute-set! servers-matrix (conc "0:" colnum) colname)
		(iup:attribute-set! servers-matrix "FITTOTEXT" (conc "C" colnum))
		(set! colnum (+ colnum 1)))
	      colnames)
    ;; (set! dashboard:update-servers-table updater)
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Modified server.scm from [81e0620ae8] to [0aa5a0a335].

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		    (let ((dat  (cdr mlst)))
		      (list (car dat) ;; host
			    (string->number (cadr dat)) ;; port
			    (string->number (caddr dat))))))
	      (list #f #f #f)))))))

;; get a list of servers with all relevant data
;; ( mod-time host port start-time )
;;
(define (server:get-list areapath)
  (let ((fname-rx (regexp "^(|.*/)server-(\\d+)-(\\S+).log$")))



    (if (directory-exists? areapath)









	(let ((server-logs (glob (conc areapath "/logs/server-*.log"))))
	  (if (null? server-logs)
	      '()
	      (let loop ((hed  (car server-logs))
			 (tal  (cdr server-logs))
			 (res '()))
		(let* ((mod-time (file-modification-time hed))








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		    (let ((dat  (cdr mlst)))
		      (list (car dat) ;; host
			    (string->number (cadr dat)) ;; port
			    (string->number (caddr dat))))))
	      (list #f #f #f)))))))

;; get a list of servers with all relevant data
;; ( mod-time host port start-time pid )
;;
(define (server:get-list areapath)
  (let ((fname-rx (regexp "^(|.*/)server-(\\d+)-(\\S+).log$")))
    ;; if the directory exists continue to get the list
    ;; otherwise attempt to create the logs dir and then
    ;; continue
    (if (if (directory-exists? (conc areapath "/logs"))
	    #t
	    (if (file-write-access? areapath)
		(begin
		  (condition-case
		      (create-directory (conc areapath "/logs") #t)
		    (exn (i/o file)(debug:print 0 *default-log-port* "ERROR: Cannot create directory at " (conc areapath "/logs")))
		    (exn ()(debug:print 0 *default-log-port* "ERROR: Unknown error attemtping to get server list.")))
		  (directory-exists? (conc areapath "/logs")))
		#f))
	(let ((server-logs (glob (conc areapath "/logs/server-*.log"))))
	  (if (null? server-logs)
	      '()
	      (let loop ((hed  (car server-logs))
			 (tal  (cdr server-logs))
			 (res '()))
		(let* ((mod-time (file-modification-time hed))
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	    (> (- (current-seconds) last-run-time) 30))
	(begin
	  (server:run areapath)
	  (hash-table-set! *server-kind-run* areapath (current-seconds))))))

(define server:try-running server:run) ;; there is no more per-run servers ;; REMOVE ME. BUG.

;; (define (server:attempting-start areapath)
;;   (with-output-to-file
;;       (conc areapath "/.starting-server")
;;     (lambda ()
;;       (print (current-process-id) " on " (get-host-name)))))
;;   
;; (define (server:complete-attempt areapath)
;;   (delete-file* (conc areapath "/.starting-server")))
;;   
;; (define (server:start-attempted? areapath)
;;   (let ((flagfile (conc areapath "/.starting-server")))
;;     (handle-exceptions
;;      exn
;;      #f  ;; if things go wrong pretend we can't see the file
;;      (cond
;;       ((and (file-exists? flagfile)
;;             (< (- (current-seconds)
;;                   (file-modification-time flagfile))
;;                15)) ;; exists and less than 15 seconds old
;;        (with-input-from-file flagfile (lambda () (read-line))))
;;       ((file-exists? flagfile) ;; it is stale.
;;        (server:complete-attempt areapath)
;;        #f)
;;       (else #f)))))
;; 
;; (define (server:read-dotserver areapath)
;;   (let ((dotfile (conc areapath "/.server")))
;;     (handle-exceptions
;;      exn
;;      #f  ;; if things go wrong pretend we can't see the file
;;      (cond
;;       ((not (file-exists? dotfile))
;;        #f)
;;       ((not (file-read-access? dotfile))
;;        #f)
;;       ((> (server:dotserver-age-seconds areapath) (+ 5 (server:get-timeout)))
;;        (server:remove-dotserver-file areapath ".*")
;;        #f)
;;       (else
;;        (let* ((line
;;                (with-input-from-file
;;                    dotfile
;;                  (lambda ()
;;                    (read-line))))
;;               (tokens (if (string? line) (string-split line ":") #f)))
;;          (cond
;;           ((eq? 4 (length tokens))
;;            tokens)
;;           (else #f))))))))
;;        
;; (define (server:read-dotserver->url areapath)
;;   (let ((dotserver-tokens (server:read-dotserver areapath)))
;;     (if dotserver-tokens
;;         (conc (list-ref dotserver-tokens 0) ":" (list-ref dotserver-tokens 1))
;; #f)))
;; 
;; ;; write a .server file in *toppath* with hostport
;; ;; return #t on success, #f otherwise
;; ;;
;; (define (server:write-dotserver areapath host port pid transport)
;;   (let ((lock-file   (conc areapath "/.server.lock"))
;; 	(server-file (conc areapath "/.server")))
;;     (if (common:simple-file-lock lock-file)
;; 	(let ((res (handle-exceptions
;; 		    exn
;; 		    #f ;; failed for some reason, for the moment simply return #f
;; 		    (with-output-to-file server-file
;; 		      (lambda ()
;; 			(print (conc host ":" port ":" pid ":" transport))))
;; 		    #t)))
;; 	  (debug:print-info 0 *default-log-port* "server file " server-file " for " host ":" port " created pid="pid)
;; 	  (common:simple-file-release-lock lock-file)
;; 	  res)
;; 	#f)))
;; 
;; 
;; ;; this will check that the .server file present matches the server calling this procedure.
;; ;; if parameters match (this-pid and transport) the file will be touched and #t returned
;; ;; otherwise #f will be returned.
;; (define (server:confirm-dotserver areapath this-iface this-port this-pid this-transport)
;;   (let* ((tokens (server:read-dotserver areapath)))
;;     (cond
;;      ((not tokens)
;;       (debug:print-info 0 *default-log-port* "INFO: .server file does not exist.")
;;       #f)
;;      ((not (eq? 4 (length tokens)))
;;       (debug:print-info 0 *default-log-port* "INFO: .server file is corrupt.  There are not 4 tokens as expeted; there are "(length tokens)".")
;;       #f)
;;      ((not (equal? this-iface (list-ref tokens 0)))
;;       (debug:print-info 0 *default-log-port* "INFO: .server file mismatch.  for iface, server has value >"(list-ref tokens 0)"< but this server's value is >"this-iface"<")
;;       #f)
;;      ((not (equal? (->string this-port)  (list-ref tokens 1)))
;;       (debug:print-info 0 *default-log-port* "INFO: .server file mismatch.  for port, .server has value >"(list-ref tokens 1)"< but this server's value is >"(->string this-port)"<")
;;       #f)
;;      ((not (equal? (->string this-pid)   (list-ref tokens 2)))
;;       (debug:print-info 0 *default-log-port* "INFO: .server file mismatch.  for pid, .server has value >"(list-ref tokens 2)"< but this server's value is >"(->string this-pid)"<")
;;       #f)
;;      ((not (equal? (->string this-transport) (->string (list-ref tokens 3))))
;;       (debug:print-info 0 *default-log-port* "INFO: .server file mismatch.  for transport, .server has value >"(list-ref tokens 3)"< but this server's value is >"this-transport"<")
;;       #f)
;;      (else (server:touch-dotserver areapath)
;;       #t))))
;; 
;; (define (server:touch-dotserver areapath)
;;   (let ((server-file (conc areapath "/.server")))
;;     (change-file-times server-file (current-seconds) (current-seconds))))

(define (server:dotserver-age-seconds areapath)
  (let ((server-file (conc areapath "/.server")))
    (begin
      (handle-exceptions
       exn
       #f
       (- (current-seconds)
          (file-modification-time server-file))))))
    
;; (define (server:remove-dotserver-file areapath hostport)
;;   (let ((dotserver-url   (server:read-dotserver->url areapath))
;; 	(server-file (conc areapath "/.server"))
;; 	(lock-file   (conc areapath "/.server.lock")))
;;     (if (and dotserver-url (string-match (conc ".*:" hostport "$") dotserver-url)) ;; port matches, good enough info to decide to remove the file
;; 	(if (common:simple-file-lock lock-file)
;; 	    (begin
;; 	      (handle-exceptions
;; 	       exn
;; 	       #f
;; 	       (delete-file* server-file))
;; 	      (debug:print-info 0 *default-log-port* "server file " server-file " for " hostport " removed")
;; 	      (common:simple-file-release-lock lock-file))
;;             (debug:print-info 0 *default-log-port* "server file " server-file " for " hostport " NOT removed - could not get lock."))
;;         (debug:print-info 0 *default-log-port* "server file " server-file " for " hostport " NOT removed - dotserver-url("dotserver-url") did not match hostport pattern ("hostport")"))))

;; no longer care if multiple servers are started by accident. older servers will drop off in time.
;;
(define (server:check-if-running areapath)
  (let* ((servers       (server:get-best (server:get-list areapath)))
	 (best-server   (if (null? servers) #f (car servers)))
	 (dotserver-url (if best-server
			    (server:record->url best-server)








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	    (> (- (current-seconds) last-run-time) 30))
	(begin
	  (server:run areapath)
	  (hash-table-set! *server-kind-run* areapath (current-seconds))))))

(define server:try-running server:run) ;; there is no more per-run servers ;; REMOVE ME. BUG.












































































































(define (server:dotserver-age-seconds areapath)
  (let ((server-file (conc areapath "/.server")))
    (begin
      (handle-exceptions
       exn
       #f
       (- (current-seconds)
          (file-modification-time server-file))))))
    
















;; no longer care if multiple servers are started by accident. older servers will drop off in time.
;;
(define (server:check-if-running areapath)
  (let* ((servers       (server:get-best (server:get-list areapath)))
	 (best-server   (if (null? servers) #f (car servers)))
	 (dotserver-url (if best-server
			    (server:record->url best-server)
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