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(file-read-access? f))
(file-modification-time f)
0))))
(max (get-mtime fname)
(get-mtime wal-file)
(get-mtime shm-file))))
(define (db:all-db-sync dbstruct)
(let* ((dbdat (db:open-db dbstruct #f db:initialize-main-db))
(data-synced 0) ;; count of changed records
(tmp-area (common:get-db-tmp-area))
(dbfiles (glob (conc tmp-area"/.megatest/*.db")))
(sync-durations (make-hash-table))
(no-sync-db (db:open-no-sync-db)))
(for-each
(lambda (file) ;; tmp db file
(debug:print-info 3 *default-log-port* "file: " file)
(let* ((fname (conc (pathname-file file) ".db")) ;; fname is tmp db file
(wal-file (conc fname "-wal"))
(shm-file (conc fname "-shm"))
(fulln (conc *toppath*"/.megatest/"fname)) ;; fulln is nfs db name
(wal-time (if (file-exists? wal-file)
(file-modification-time wal-file)
0))
(shm-time (if (file-exists? shm-file)
(file-modification-time shm-file)
0))
(time1 (db:get-sqlite3-mod-time file))
;; (if (file-exists? file) ;; time1 is the max itime of the tmp db, -wal and -shm files.
;; (max (file-modification-time file) wal-time shm-time)
;; (begin
;; (debug:print-info 2 *default-log-port* "Sync - I do not see file "file)
;; 1)))
(time2 (db:get-sqlite3-mod-time fulln))
;; (if (file-exists? fulln) ;; time2 is nfs file time
;; (file-modification-time fulln)
;; (begin
;; (debug:print-info 2 *default-log-port* "Sync - I do not see file "fulln)
;; 0)))
(changed (> (- time1 time2) (+ (random 5) 1))) ;; it has been at some few seconds since last synced
(changed10 (> (- time1 time2) 10)) ;; it has been at least ten seconds since sync'd
(jfile-exists (file-exists? (conc file"-journal"))) ;; i.e. are we busy?
(do-cp (cond
((not (file-exists? fulln)) ;; shouldn't happen, but this might recover
(cons #t (conc "File "fulln" not found! Copying "fname" to "fulln)))
((and (not jfile-exists) changed)
(cons #t "not busy, changed")) ;; not busy and changed
((and jfile-exists changed10)
(cons #t "busy but not synced in a while")) ;; busy but not sync'd in over 10 seconds
((and changed *time-to-exit*)
(cons #t "Time to exit, forced final sync")) ;; last sync
(else
(cons #f "No sync needed")))))
(if (car do-cp)
(let* ((start-time (current-milliseconds))
(fname (pathname-file file))
(runid (if (string= fname "main") #f (string->number fname))))
(debug:print-info 3 *default-log-port* "db:all-db-sync: fname: "
fname", delta: " (- time1 time2) " seconds, reason: "(cdr do-cp))
(db:lock-and-delta-sync no-sync-db dbstruct fname runid (db:get-keys dbstruct) db:initialize-main-db)
(hash-table-set! sync-durations (conc fname".db")
(- (current-milliseconds) start-time)))
(debug:print-info 3 *default-log-port* "skipping sync. " file " is up to date")
)))
dbfiles)
;; WHY does the dbdat need to be added back?
(if dbdat (dbfile:add-dbdat dbstruct #f dbdat))
)
#t)
(define (db:kill-servers)
(let* ((servers (server:choose-server *toppath* 'all-valid))) ;; (server:get-list *toppath*))
(for-each
(lambda (server)
(handle-exceptions
exn
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(file-read-access? f))
(file-modification-time f)
0))))
(max (get-mtime fname)
(get-mtime wal-file)
(get-mtime shm-file))))
;; (define (db:all-db-sync dbstruct)
;; (let* ((dbdat (db:open-db dbstruct #f db:initialize-main-db))
;; (data-synced 0) ;; count of changed records
;; (tmp-area (common:get-db-tmp-area))
;; (dbfiles (glob (conc tmp-area"/.megatest/*.db")))
;; (sync-durations (make-hash-table))
;; (no-sync-db (db:open-no-sync-db)))
;; (for-each
;; (lambda (file) ;; tmp db file
;; (debug:print-info 3 *default-log-port* "file: " file)
;; (let* ((fname (conc (pathname-file file) ".db")) ;; fname is tmp db file
;; (wal-file (conc fname "-wal"))
;; (shm-file (conc fname "-shm"))
;; (fulln (conc *toppath*"/.megatest/"fname)) ;; fulln is nfs db name
;; (wal-time (if (file-exists? wal-file)
;; (file-modification-time wal-file)
;; 0))
;; (shm-time (if (file-exists? shm-file)
;; (file-modification-time shm-file)
;; 0))
;; (time1 (db:get-sqlite3-mod-time file))
;; ;; (if (file-exists? file) ;; time1 is the max itime of the tmp db, -wal and -shm files.
;; ;; (max (file-modification-time file) wal-time shm-time)
;; ;; (begin
;; ;; (debug:print-info 2 *default-log-port* "Sync - I do not see file "file)
;; ;; 1)))
;; (time2 (db:get-sqlite3-mod-time fulln))
;; ;; (if (file-exists? fulln) ;; time2 is nfs file time
;; ;; (file-modification-time fulln)
;; ;; (begin
;; ;; (debug:print-info 2 *default-log-port* "Sync - I do not see file "fulln)
;; ;; 0)))
;; (changed (> (- time1 time2) (+ (random 5) 1))) ;; it has been at some few seconds since last synced
;; (changed10 (> (- time1 time2) 10)) ;; it has been at least ten seconds since sync'd
;; (jfile-exists (file-exists? (conc file"-journal"))) ;; i.e. are we busy?
;; (do-cp (cond
;; ((not (file-exists? fulln)) ;; shouldn't happen, but this might recover
;; (cons #t (conc "File "fulln" not found! Copying "fname" to "fulln)))
;; ((and (not jfile-exists) changed)
;; (cons #t "not busy, changed")) ;; not busy and changed
;; ((and jfile-exists changed10)
;; (cons #t "busy but not synced in a while")) ;; busy but not sync'd in over 10 seconds
;; ((and changed *time-to-exit*)
;; (cons #t "Time to exit, forced final sync")) ;; last sync
;; (else
;; (cons #f "No sync needed")))))
;; (if (car do-cp)
;; (let* ((start-time (current-milliseconds))
;; (fname (pathname-file file))
;; (runid (if (string= fname "main") #f (string->number fname))))
;; (debug:print-info 3 *default-log-port* "db:all-db-sync: fname: "
;; fname", delta: " (- time1 time2) " seconds, reason: "(cdr do-cp))
;; (db:lock-and-delta-sync no-sync-db dbstruct fname runid (db:get-keys dbstruct) db:initialize-main-db)
;; (hash-table-set! sync-durations (conc fname".db")
;; (- (current-milliseconds) start-time)))
;; (debug:print-info 3 *default-log-port* "skipping sync. " file " is up to date")
;; )))
;; dbfiles)
;; ;; WHY does the dbdat need to be added back?
;; (if dbdat (dbfile:add-dbdat dbstruct #f dbdat))
;; )
;; #t)
(define (db:kill-servers)
(let* ((servers (server:choose-server *toppath* 'all-valid))) ;; (server:get-list *toppath*))
(for-each
(lambda (server)
(handle-exceptions
exn
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