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(define (common:version-db-delta)
(- megatest-version (common:get-last-run-version-number)))
(define (common:version-changed?)
(not (equal? (common:get-last-run-version)
(common:version-signature))))
;; From 1.70 to 1.80, db's are compatible.
(define (common:api-changed?)
(let* (
(not (equal? (substring (->string megatest-version) 0 4)
(substring (conc (common:get-last-run-version)) 0 4))))
(megatest-major-version (substring (->string megatest-version) 0 4))
(run-major-version (substring (conc (common:get-last-run-version)) 0 4))
)
(and (not (equal? megatest-major-version "1.80"))
(not (equal? megatest-major-version megatest-run-version)))
)
)
;;======================================================================
;; Move me elsewhere ...
;; RADT => Why do we meed the version check here, this is called only if version misma
;;
(define (common:cleanup-db dbstruct #!key (full #f))
(apply db:multi-db-sync
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;; logs directory you wish to log-rotate.
;;
(define (common:rotate-logs)
(let* ((all-files (make-hash-table))
(stats (make-hash-table))
(inc-stat (lambda (key)
(hash-table-set! stats key (+ (hash-table-ref/default stats key 0) 1))))
(max-allowed (string->number (or (configf:lookup *configdat* "setup" "max-logfiles") "300")))) ;; name -> age
(max-allowed (string->number (or (configf:lookup *configdat* "setup" "max-logfiles") "600")))) ;; name -> age
(if (not (directory-exists? "logs"))(create-directory "logs"))
(directory-fold
(lambda (file rem)
(handle-exceptions
exn
(begin
(debug:print-info 2 *default-log-port* "unable to rotate log " file ", probably handled by another process, this is safe to ignore. exn=" exn)
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(debug:print-info 0 *default-log-port* "Deleted " (length files) " files from logs, keeping " max-allowed " files."))))))
;;======================================================================
;; Force a megatest cleanup-db if version is changed and skip-version-check not specified
;; Do NOT check if not on homehost!
;;
(define (common:exit-on-version-changed)
(if (and *toppath* ;; do nothing if *toppath* not yet provided
(if (common:on-homehost?)
(common:on-homehost?))
(if (common:api-changed?)
(let* ((mtconf (conc (get-environment-variable "MT_RUN_AREA_HOME") "/megatest.config"))
(dbfile (conc (get-environment-variable "MT_RUN_AREA_HOME") "/megatest.db"))
(dbfile (conc (get-environment-variable "MT_RUN_AREA_HOME") ".megatest/main.db"))
(read-only (not (file-write-access? dbfile)))
(dbstruct (db:setup #t))) ;; (db:setup-db *dbstruct-dbs* *toppath* #f))) ;; #t)))
(debug:print 0 *default-log-port*
"WARNING: Version mismatch!\n"
" expected: " (common:version-signature) "\n"
" got: " (common:get-last-run-version))
(cond
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(print-call-chain (current-error-port))
(exit 1))
(common:cleanup-db dbstruct)))
((not (common:file-exists? mtconf))
(debug:print 0 *default-log-port* " megatest.config does not exist in this area. Cannot proceed with megatest version migration.")
(exit 1))
((not (common:file-exists? dbfile))
(debug:print 0 *default-log-port* " megatest.db does not exist in this area. Cannot proceed with megatest version migration.")
(debug:print 0 *default-log-port* " .megatest/main.db does not exist in this area. Cannot proceed with megatest version migration.")
(exit 1))
((not (eq? (current-user-id)(file-owner mtconf)))
(debug:print 0 *default-log-port* " You do not own megatest.db in this area. Cannot proceed with megatest version migration.")
(debug:print 0 *default-log-port* " You do not own .megatest/main.db in this area. Cannot proceed with megatest version migration.")
(exit 1))
(read-only
(debug:print 0 *default-log-port* " You have read-only access to this area. Cannot proceed with megatest version migration.")
(exit 1))
(else
(debug:print 0 *default-log-port* " to switch versions you can run: \"megatest -cleanup-db\"")
(exit 1)))))))
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(if dat
dat
""))))
(define (common:alist-ref/default key alist default)
(or (alist-ref key alist) default))
;; moved into commonmod
;;
(define (common:low-noise-print waitval . keys)
(let* ((key (string-intersperse (map conc keys) "-" ))
(lasttime (hash-table-ref/default *common:denoise* key 0))
(currtime (current-seconds)))
(if (> (- currtime lasttime) waitval)
(begin
(hash-table-set! *common:denoise* key currtime)
#t)
#f)))
;; (define (common:low-noise-print waitval . keys)
;; (let* ((key (string-intersperse (map conc keys) "-" ))
;; (lasttime (hash-table-ref/default *common:denoise* key 0))
;; (currtime (current-seconds)))
;; (if (> (- currtime lasttime) waitval)
;; (begin
;; (hash-table-set! *common:denoise* key currtime)
;; #t)
;; #f)))
(define (common:get-megatest-exe)
(or (getenv "MT_MEGATEST") "megatest"))
(define (common:read-encoded-string instr)
(handle-exceptions
exn
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(message-digest-string (md5-primitive) str))
;;======================================================================
;; E X I T H A N D L I N G
;;======================================================================
(define (common:run-sync?)
(and *toppath* ;; gate if called before *toppath* is set
(and (common:on-homehost?)
(args:get-arg "-server")))
(common:on-homehost?)
(args:get-arg "-server")))
(define (common:human-time)
(time->string (seconds->local-time (current-seconds)) "%Y-%m-%d %H:%M:%S"))
(define (std-signal-handler signum)
;; (signal-mask! signum)
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(begin ;; found a host, return it
(debug:print 0 *default-log-port* "INFO: Found host: " new-best " load: " load " last-used: " delta " seconds ago, with job-rate: " job-rate)
(host-last-used-set! rec curr-time)
new-best)
(if (null? tal) #f (loop (car tal)(cdr tal) best-host)))))))))
(define (common:wait-for-homehost-load maxnormload msg)
(let loop ((start-time (current-seconds))) ;; we saw some instances of this being called before *toppath* was set. This might be an early setup race. This delay should help but it is impossible to test...
(if (not *toppath*)
(begin
(debug:print 0 *default-log-port* "ERROR: common:wait-for-homehost-load called before *toppath* set.")
(thread-sleep! 30)
(if (< (- (current-seconds) start-time) 300)
(loop start-time)))))
(let* ((hh-dat (if (common:on-homehost?) ;; if we are on the homehost then pass in #f so the calls are local.
#f
(server:choose-server *toppath* 'homehost)))
(hh (if hh-dat (car hh-dat) #f)))
(common:wait-for-normalized-load maxnormload msg hh)))
(define (common:get-num-cpus remote-host)
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;; return the target db handle so it can be used
;;
(define (db:cache-for-read-only source target #!key (use-last-update #f))
(if (and (hash-table-ref/default *global-db-store* target #f)
(>= (file-modification-time target)(file-modification-time source)))
(hash-table-ref *global-db-store* target)
(let* ((toppath (launch:setup))
(targ-db-last-mod (db:get-sqlite3-mod-time target))
(targ-db-last-mod (if (common:file-exists? target)
(file-modification-time target)
0))
;; (if (common:file-exists? target)
;; BUG: This needs to include wal mode stuff .shm etc.
;; (file-modification-time target)
;; 0))
(cache-db (or (hash-table-ref/default *global-db-store* target #f)
(db:open-megatest-db path: target)))
(source-db (db:open-megatest-db path: source))
(curr-time (current-seconds))
(res '())
(last-update (if use-last-update (cons "last_update" targ-db-last-mod) #f)))
(db:sync-tables (db:sync-main-list source-db) last-update source-db cache-db)
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;; megatest-db
;; (conc cache-dir "/" fname)
;; use-last-update: #t)))
;; (thread-start! th1)
;; (apply proc cache-db params)
;; ))))
(define (db:get-sqlite3-mod-time fname)
(let* ((wal-file (conc fname "-wal"))
(shm-file (conc fname "-shm"))
(get-mtime (lambda (f)
(if (and (file-exists? f)
(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)
(lambda (file) ;; tmp db file
(debug:print-info 3 *default-log-port* "file: " file)
(let* ((fname (conc (pathname-file file) ".db"))
(fulln (conc *toppath*"/.megatest/"fname))
(time1 (if (file-exists? file)
(file-modification-time file)
(begin
(debug:print-info 2 *default-log-port* "Sync - I do not see file "file)
1)))
(time2 (if (file-exists? fulln)
(file-modification-time fulln)
(begin
(debug:print-info 2 *default-log-port* "Sync - I do not see file "fulln)
0)))
(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)
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(servers (server:choose-server *toppath* 'all-valid)) ;; (server:get-list *toppath*))
(src-area (if old2new *toppath* tmp-area))
(dest-area (if old2new tmp-area *toppath*))
(dbfiles (if old2new (glob (conc *toppath* "/.megatest/*.db")) (glob (conc tmp-area "/.megatest/*.db"))))
(keys (db:get-keys dbstruct))
(sync-durations (make-hash-table)))
(if killservers
(if (and killservers servers)
(begin
(for-each
(lambda (server)
(handle-exceptions
exn
(begin
(debug:print-info 0 *default-log-port* "Unable to get host and/or port from " server ", exn=" exn)
#f)
(match-let (((mod-time host port start-time server-id pid) server))
(if (and host pid)
(tasks:kill-server host pid)))))
servers)
(delete-file* (common:get-sync-lock-filepath))
)
)
(if (not dbfiles)
(debug:print-error 0 *default-log-port* "no dbfiles found in " (conc *toppath* "/.megatest"))
(for-each
(lambda (srcfile)
(debug:print-info 3 *default-log-port* "file: " srcfile)
(let* ((fname (conc (pathname-file srcfile) ".db"))
(basename (pathname-file srcfile))
(run-id (if (string= basename "main") #f (string->number basename)))
(destfile (conc dest-area "/.megatest/" fname))
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(debug:print-info 0 *default-log-port* "Sync - I do not see file " destfile)
0)))
(changed ( < (- time2 time1) 6.0)) ;; dest db not updated within last 6 seconds
(do-cp (cond
((not (file-exists? destfile)) ;; shouldn't happen, but this might recover
(debug:print-info 2 *default-log-port* "File " destfile " not found. Copying "srcfile" to "destfile)
;; TODO: Need to fix this for WAL mod. Can't just copy.
(system (conc "/bin/mkdir -p " dest-directory))
(system (conc "/bin/cp " srcfile " " destfile))
#t)
(changed ;; (and changed
;; (> (- (current-seconds) time1) 3)) ;; if file is changed and three seconds have passed.
#t)
((and changed *time-to-exit*) ;; last sync
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)
(hash-table-set! sync-durations (conc srcfile ".db") (- (current-milliseconds) start-time)))
(debug:print-info 2 *default-log-port* "skipping delta sync. " srcfile " is up to date")
)
)
)
dbfiles
)
)
data-synced
)
)
;; Sync all changed db's
;;
(define (db:tmp->megatest.db-sync dbstruct run-id last-update)
(let* ((subdbs (hash-table-values (dbr:dbstruct-subdbs dbstruct)))
(res '()))
(for-each
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(db:with-db
dbstruct #f #f
(lambda (dbdat db)
(if msg
(sqlite3:execute db "UPDATE runs SET status=?,comment=? WHERE id=?;" status msg run-id)
(sqlite3:execute db "UPDATE runs SET status=? WHERE id=?;" status run-id)))))
(define (db:set-run-state-status-db db run-id state status )
(sqlite3:execute db "UPDATE runs SET status=?,state=? WHERE id=?;" status state run-id))
(define (db:set-run-state-status dbstruct run-id state status )
(db:with-db
dbstruct #f #f
(lambda (dbdat db)
(sqlite3:execute db "UPDATE runs SET status=?,state=? WHERE id=?;" status state run-id))))
(db:set-run-state-status-db db run-id state status))))
(define (db:get-run-status dbstruct run-id)
(let ((res "n/a"))
(db:with-db
dbstruct #f #f
(lambda (dbdat db)
(sqlite3:for-each-row
(lambda (status)
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(db:with-db dbstruct run-id #f
(lambda (dbdat db)
(sqlite3:for-each-row
(lambda (run-id testname item-path state status)
;; id,run_id,testname,state,status,event_time,host,cpuload,diskfree,uname,rundir,item_path,run_duration,final_logf,comment
(set! res (vector test-id run-id testname state status -1 "" -1 -1 "" "-" item-path -1 "-" "-")))
db
"SELECT run_id,testname,item_path,state,status FROM tests WHERE id=?;"
test-id)))
"SELECT run_id,testname,item_path,state,status FROM tests WHERE id=? and run_id=?;"
test-id run-id)))
res))
;; get a useful subset of the tests data (used in dashboard
;; use db:mintest-get-{id ,run_id,testname ...}
;;
(define (db:get-tests-for-run-mindata dbstruct run-id testpatt states statuses not-in)
(db:get-tests-for-run dbstruct run-id testpatt states statuses #f #f not-in #f #f "id,run_id,testname,state,status,event_time,item_path" 0 #f))
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;; ;; NB// Ultimately this will be deprecated in deference to mt:test-set-state-status-by-id
;;
;; NOTE: run-id is not used
;; ;;
(define (db:test-set-state-status dbstruct run-id test-id newstate newstatus newcomment)
(db:with-db
dbstruct
run-id
run-id #f
#t
(lambda (dbdat db)
(db:test-set-state-status-db db run-id test-id newstate newstatus newcomment))))
(define (db:test-set-state-status-db db run-id test-id newstate newstatus newcomment)
(cond
((and newstate newstatus newcomment)
(sqlite3:execute db "UPDATE tests SET state=?,status=?,comment=? WHERE id=?;" newstate newstatus newcomment ;; (sdb:qry 'getid newcomment)
test-id))
((and newstate newstatus)
(sqlite3:execute db "UPDATE tests SET state=?,status=? WHERE id=?;" newstate newstatus test-id))
(else
(if newstate (sqlite3:execute db "UPDATE tests SET state=? WHERE id=?;" newstate test-id))
(if newstatus (sqlite3:execute db "UPDATE tests SET status=? WHERE id=?;" newstatus test-id))
(if newcomment (sqlite3:execute db "UPDATE tests SET comment=? WHERE id=?;" newcomment ;; (sdb:qry 'getid newcomment)
test-id))))))
(mt:process-triggers dbstruct run-id test-id newstate newstatus))
(cond
((and newstate newstatus newcomment)
(sqlite3:execute db "UPDATE tests SET state=?,status=?,comment=? WHERE id=?;" newstate newstatus newcomment ;; (sdb:qry 'getid newcomment)
test-id))
((and newstate newstatus)
(sqlite3:execute db "UPDATE tests SET state=?,status=? WHERE id=?;" newstate newstatus test-id))
(else
(if newstate (sqlite3:execute db "UPDATE tests SET state=? WHERE id=?;" newstate test-id))
(if newstatus (sqlite3:execute db "UPDATE tests SET status=? WHERE id=?;" newstatus test-id))
(if newcomment (sqlite3:execute db "UPDATE tests SET comment=? WHERE id=?;" newcomment ;; (sdb:qry 'getid newcomment)
test-id))))
;; (mt:process-triggers dbstruct run-id test-id newstate newstatus)) ;; NOTE: Moved into calling function
)
;; NEW BEHAVIOR: Count tests running in all runs!
;;
(define (db:get-count-tests-running dbstruct run-id) ;; fastmode)
(let* ((qry ;; (if fastmode
;; "SELECT count(id) FROM tests WHERE state in ('RUNNING','LAUNCHED','REMOTEHOSTSTART') AND NOT (uname = 'n/a' AND item_path = '') LIMIT 1;"
"SELECT count(id) FROM tests WHERE state in ('RUNNING','LAUNCHED','REMOTEHOSTSTART') AND NOT (uname = 'n/a' AND item_path = '');")) ;; )
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(define (db:get-test-info dbstruct run-id test-name item-path)
(db:with-db
dbstruct
run-id
#f
(lambda (dbdat db)
(db:get-test-info-db db run-id test-name item-path))))
(define (db:get-test-info-db db run-id test-name item-path)
(let ((res #f))
(sqlite3:for-each-row
(lambda (a . b)
(set! res (apply vector a b)))
db
(conc "SELECT " db:test-record-qry-selector " FROM tests WHERE testname=? AND item_path=? AND run_id=?;")
test-name item-path run-id)
res))))
(let ((res #f))
(sqlite3:for-each-row
(lambda (a . b)
(set! res (apply vector a b)))
db
(conc "SELECT " db:test-record-qry-selector " FROM tests WHERE testname=? AND item_path=? AND run_id=?;")
test-name item-path run-id)
res))
(define (db:test-get-rundir-from-test-id dbstruct run-id test-id)
(db:with-db
dbstruct
run-id
#f
(lambda (dbdat db)
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(test-name (if (number? test-name)
(db:test-get-testname testdat)
test-name))
(item-path (db:test-get-item-path testdat))
(tl-testdat (db:get-test-info dbstruct run-id test-name ""))
(tl-test-id (if tl-testdat
(db:test-get-id tl-testdat)
#f)))
#f))
(new-state-eh #f)
(new-status-eh #f))
(if (member state '("LAUNCHED" "REMOTEHOSTSTART"))
(db:general-call dbstruct run-id 'set-test-start-time (list test-id)))
(mutex-lock! *db-transaction-mutex*)
(db:with-db
dbstruct run-id #f
(lambda (dbdat db)
(let ((tr-res
(sqlite3:with-transaction
db
(lambda ()
;; NB// Pass the db so it is part fo the transaction
(db:test-set-state-status db run-id test-id state status comment) ;; this call sets the item state/status
(db:test-set-state-status-db db run-id test-id state status comment) ;; this call sets the item state/status
(if (not (equal? item-path "")) ;; only roll up IF incoming test is an item
(let* ((state-status-counts (db:get-all-state-status-counts-for-test db run-id test-name item-path state status)) ;; item-path is used to exclude current state/status of THIS test
(state-statuses (db:roll-up-rules state-status-counts state status))
(newstate (car state-statuses))
(newstatus (cadr state-statuses)))
(let* ((state-status-counts (db:get-all-state-status-counts-for-test db run-id test-name item-path state status)) ;; item-path is used to exclude current state/status of THIS test
(state-statuses (db:roll-up-rules state-status-counts state status))
(newstate (car state-statuses))
(newstatus (cadr state-statuses)))
(set! new-state-eh newstate)
(set! new-status-eh newstatus)
(debug:print 4 *default-log-port* "BB> tl-test-id="tl-test-id" ; "test-name":"item-path" newstate="newstate" newstatus="newstatus" len(sscs)="(length state-status-counts) " state-status-counts: "
(apply conc
(map (lambda (x)
(conc
(with-output-to-string (lambda () (pp (dbr:counts->alist x)))) " | "))
state-status-counts))); end debug:print
(apply conc
(map (lambda (x)
(conc
(with-output-to-string (lambda () (pp (dbr:counts->alist x)))) " | "))
state-status-counts))); end debug:print
(if tl-test-id
(db:test-set-state-status db run-id tl-test-id newstate newstatus #f)) ;; we are still in the transaction - must access the db and not the dbstruct
(if tl-test-id
(db:test-set-state-status-db db run-id tl-test-id newstate newstatus #f)) ;; we are still in the transaction - must access the db and not the dbstruct
))))))
(mutex-unlock! *db-transaction-mutex*)
(if (and test-id state status (equal? status "AUTO"))
(db:test-data-rollup dbstruct run-id test-id status))
(if new-state-eh ;; moved from db:test-set-state-status
(mt:process-triggers dbstruct run-id test-id new-state-eh new-status-eh))
tr-res)))))
(define (db:roll-up-rules state-status-counts state status)
(let* ((running (length (filter (lambda (x)
(member (dbr:counts-state x) *common:running-states*))
state-status-counts)))
(bad-not-started (length (filter (lambda (x)
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(db:with-db
dbstruct run-id #f
(lambda (dbdat db)
(let ((tr-res
(sqlite3:with-transaction
db
(lambda ()
(let* ((state-status-counts (db:get-all-state-status-counts-for-run db run-id))
(let* ((state-status-counts (db:get-all-state-status-counts-for-run-db db run-id))
(state-statuses (db:roll-up-rules state-status-counts #f #f ))
(newstate (car state-statuses))
(newstatus (cadr state-statuses)))
(if (or (not (eq? newstate curr-state)) (not (eq? newstatus curr-status)))
(db:set-run-state-status db run-id newstate newstatus )))))))
(db:set-run-state-status-db db run-id newstate newstatus )))))))
(mutex-unlock! *db-transaction-mutex*)
tr-res))))
(define (db:get-all-state-status-counts-for-run dbstruct run-id)
(define (db:get-all-state-status-counts-for-run-db db run-id)
(let* ((test-count-recs (db:with-db
dbstruct #f #f
(lambda (dbdat db)
(sqlite3:map-row
(lambda (state status count)
(make-dbr:counts state: state status: status count: count))
db
"SELECT state,status,count(id) FROM tests WHERE run_id=? GROUP BY state,status;"
run-id )))))
(sqlite3:map-row
(lambda (state status count)
(make-dbr:counts state: state status: status count: count))
db
"SELECT state,status,count(id) FROM tests WHERE run_id=? GROUP BY state,status;"
run-id ))
test-count-recs))
(define (db:get-all-state-status-counts-for-run dbstruct run-id)
(db:with-db
dbstruct #f #f
(lambda (dbdat db)
(db:get-all-state-status-counts-for-run-db dbstruct run-id))))
;; BBnote: db:get-all-state-status-counts-for-test returns dbr:counts object aggregating state and status of items of a given test, *not including rollup state/status*
;;
;; NOTE: This is called within a transaction
;;
(define (db:get-all-state-status-counts-for-test dbstruct run-id test-name item-path item-state-in item-status-in)
(let* ((test-info (db:get-test-info dbstruct run-id test-name item-path))
(define (db:get-all-state-status-counts-for-test db run-id test-name item-path item-state-in item-status-in)
(let* ((test-info (db:get-test-info-db db run-id test-name item-path))
(item-state (or item-state-in (db:test-get-state test-info)))
(item-status (or item-status-in (db:test-get-status test-info)))
(other-items-count-recs (db:with-db
(other-items-count-recs (sqlite3:map-row
dbstruct run-id #f
(lambda (dbdat db)
(sqlite3:map-row
(lambda (state status count)
(make-dbr:counts state: state status: status count: count))
db
;; ignore current item because we have changed its value in the current transation so this select will see the old value.
"SELECT state,status,count(id) FROM tests WHERE run_id=? AND testname=? AND item_path != '' AND item_path !=? GROUP BY state,status;"
run-id test-name item-path))))
(lambda (state status count)
(make-dbr:counts state: state status: status count: count))
db
;; ignore current item because we have changed its value in the current transation so this select will see the old value.
"SELECT state,status,count(id) FROM tests WHERE run_id=? AND testname=? AND item_path != '' AND item_path !=? GROUP BY state,status;"
run-id test-name item-path))
;; add current item to tally outside of sql query
(match-countrec-lambda (lambda (countrec)
(and (equal? (dbr:counts-state countrec) item-state)
(match-countrec-lambda (lambda (countrec)
(and (equal? (dbr:counts-state countrec) item-state)
(equal? (dbr:counts-status countrec) item-status))))
(already-have-count-rec-list
(filter match-countrec-lambda other-items-count-recs)) ;; will have either 0 or 1 count recs depending if another item shares this item's state/status
(updated-count-rec (if (null? already-have-count-rec-list)
(make-dbr:counts state: item-state status: item-status count: 1)
(let* ((our-count-rec (car already-have-count-rec-list))
(new-count (add1 (dbr:counts-count our-count-rec))))
(make-dbr:counts state: item-state status: item-status count: new-count))))
(nonmatch-countrec-lambda (lambda (countrec) (not (match-countrec-lambda countrec))))
(unrelated-rec-list
(filter nonmatch-countrec-lambda other-items-count-recs)))
(cons updated-count-rec unrelated-rec-list)))
;; (define (db:get-all-item-states db run-id test-name)
;; (sqlite3:map-row
;; (lambda (a) a)
;; db
;; "SELECT DISTINCT state FROM tests WHERE item_path != '' AND state != 'DELETED' AND run_id=? AND testname=?"
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(define (dbfile:print-err . params)
(with-output-to-port
(current-error-port)
(lambda ()
(apply print params))))
(define (dbfile:cautious-open-database fname init-proc sync-mode journal-mode #!optional (tries-left 500))
(let* ((busy-file (conc fname"-journal"))
(let* ((busy-file (conc fname "-journal"))
(delay-time (* (- 51 tries-left) 1.1))
(write-access (file-write-access? fname))
(dir-access (file-write-access? (pathname-directory fname)))
(retry (lambda ()
(thread-sleep! delay-time)
(if (> tries-left 0)
(dbfile:cautious-open-database fname init-proc
sync-mode: sync-mode journal-mode: journal-mode
sync-mode: sync-mode journal-mode
(- tries-left 1))))))
(assert (>= tries-left 0) (conc "FATAL: too many attempts in dbfile:cautious-open-database of "fname", giving up."))
(if (and (file-write-access? fname)
(file-exists? busy-file))
(begin
(if (common:low-noise-print 120 busy-file)
(dbfile:print-err "INFO: dbfile:cautious-open-database: journal file "
busy-file" exists, trying again in few seconds."))
(thread-sleep! 1)
(if (eq? tries-left 2)
(begin
(dbfile:print-err "INFO: forcing journal rollup "busy-file)
(dbfile:brute-force-salvage-db fname)))
(dbfile:cautious-open-database fname init-proc sync-mode: sync-mode journal-mode: journal-mode (- tries-left 1)))
(dbfile:cautious-open-database fname init-proc sync-mode journal-mode (- tries-left 1)))
(let* ((result (condition-case
(if dir-access
(dbfile:with-simple-file-lock
(conc fname ".lock")
(lambda ()
(let* ((db-exists (file-exists? fname))
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(dbfile:print-err "INFO: db:lock-and-delta-sync copying db "runid" at "(current-seconds))
(set! *db-sync-in-progress* #t)
(db:sync-touched dbstruct runid keys dbinit)
(set! *db-sync-in-progress* #f)
(delete-file* lock-file)
#t)
(begin
(if (common:low-noise-print 120 (conc "no lock "from-db-file))
(dbfile:print-err "INFO: could not get lock for " from-db-file ", sync likely in progress.")
(dbfile:print-err "INFO: could not get lock for " from-db-file ", sync likely in progress."))
#f
))))
;; ;; Get a lock from the no-sync-db for the from-db, then delta sync the from-db to the to-db, otherwise return #f
;; ;;
;; (define (db:lock-and-delta-sync-orig no-sync-db dbstruct from-db-file runid keys dbinit)
;; (assert (not *db-sync-in-progress*) "FATAL: db:lock-and-sync called while a sync is in progress.")
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'("owner" #f)
'("description" #f)
'("reviewed" #f)
'("iterated" #f)
'("avg_runtime" #f)
'("avg_disk" #f)
'("tags" #f)
'("jobgroup" #f)))))
'("jobgroup" #f))
(list "tasks_queue"
'("id" #f)
'("action" #f)
'("owner" #f)
'("state" #f)
'("target" #f)
'("name" #f)
'("testpatt" #f)
'("keylock" #f)
'("params" #f)
'("creation_time" #f)
'("execution_time" #f))
)))
(define (db:sync-all-tables-list dbstruct keys)
(append (db:sync-main-list dbstruct keys)
db:sync-tests-only))
;; tbls is ( ("tablename" ( "field1" [#f|proc1] ) ( "field2" [#f|proc2] ) .... ) )
;; db's are dbdat's
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(define dbfile:db-init-proc (make-parameter #f))
;; (db:with-db dbstruct run-id sqlite3:exec "select blah fgrom blaz;")
;; r/w is a flag to indicate if the db is modified by this query #t = yes, #f = no
;;
(define (db:with-db dbstruct run-id r/w proc . params)
(assert dbstruct "FATAL: db:with-db called with dbstruct "#f)
(assert (dbr:dbstruct? dbstruct) "FATAL: dbstruct is "dbstruct)
(let* ((use-mutex (> *api-process-request-count* 25)) ;; risk of db corruption
(have-struct (dbr:dbstruct? dbstruct))
(dbdat (if have-struct ;; this stuff just allows us to call with a db handle directly
(db:open-db dbstruct run-id (dbfile:db-init-proc)) ;; (dbfile:get-subdb dbstruct run-id)
#f))
(db (if have-struct ;; this stuff just allows us to call with a db handle directly
(dbr:dbdat-dbh dbdat)
dbstruct))
(fname (if dbdat
(dbr:dbdat-dbfile dbdat)
"nofilenameavailable"))
(jfile (conc fname"-journal"))
#;(subdb (if have-struct
(dbfile:get-subdb dbstruct run-id)
#f))
) ;; was 25
(assert (sqlite3:database? db) "FATAL: db:with-db, db is not a database, db="db", fname="fname)
(if (file-exists? jfile)
(begin
(dbfile:print-err "INFO: "jfile" exists, delaying to reduce database load")
(thread-sleep! 0.2)))
(if (and use-mutex
(common:low-noise-print 120 "over-50-parallel-api-requests"))
(dbfile:print-err *api-process-request-count* " parallel api requests being processed in process "
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(config-use-proxy (equal? (configf:lookup *configdat* "client" "use-http_proxy") "yes")))
(if (not config-use-proxy)
(determine-proxy (constantly #f)))
(debug:print-info 0 *default-log-port* "http-transport:try-start-server time=" (seconds->time-string (current-seconds)) " ipaddrsstr=" ipaddrstr " portnum=" portnum " config-hostname=" config-hostname)
(handle-exceptions
exn
(begin
(print-error-message exn)
;; (print-error-message exn)
(if (< portnum 64000)
(begin
(debug:print 0 *default-log-port* "WARNING: attempt to start server failed. Trying again ...")
(debug:print 0 *default-log-port* " message: " ((condition-property-accessor 'exn 'message) exn))
(debug:print 5 *default-log-port* "exn=" (condition->list exn))
(portlogger:open-run-close portlogger:set-failed portnum)
(debug:print 0 *default-log-port* "WARNING: failed to start on portnum: " portnum ", trying next port")
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(signal (make-composite-condition
(make-property-condition
'timeout
'message "nmsg-transport:client-api-send-receive-raw timed out talking to server")))))))
;; careful closing of connections stored in *runremote*
;;
(define (http-transport:close-connections #!key (area-dat #f))
(let* ((runremote (or area-dat *runremote*))
(define (http-transport:close-connections runremote)
(let* (;; (runremote (or area-dat *runremote*))
(server-dat (if runremote
(remote-conndat runremote)
#f))) ;; (hash-table-ref/default *runremote* run-id #f)))
(if (vector? server-dat)
(let ((api-dat (http-transport:server-dat-get-api-uri server-dat)))
(handle-exceptions
exn
(begin
(print-call-chain *default-log-port*)
(debug:print-error 0 *default-log-port* " closing connection failed with error: " ((condition-property-accessor 'exn 'message) exn) ", exn=" exn))
(close-connection! api-dat)
(close-idle-connections!)
;; (close-idle-connections!)
(remote-conndat-set! runremote #f)
#t))
#f)))
(define (make-http-transport:server-dat)(make-vector 6))
(define (http-transport:server-dat-get-iface vec) (vector-ref vec 0))
(define (http-transport:server-dat-get-port vec) (vector-ref vec 1))
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(print-call-chain (current-error-port))
(debug:print-error 0 *default-log-port* "call to http-transport:server-dat-update-last-access with non-vector!!"))))
;;
;; connect
;;
(define (http-transport:client-connect iface port server-id)
(debug:print-info 0 *default-log-port* "Connecting to client at "iface":"port", with server-id "server-id)
(debug:print-info 2 *default-log-port* "Connecting to server at "iface":"port", id "server-id)
(let* ((api-url (conc "http://" iface ":" port "/api"))
(api-uri (uri-reference (conc "http://" iface ":" port "/api")))
(api-req (make-request method: 'POST uri: api-uri))
(server-dat (vector iface port api-uri api-url api-req (current-seconds) server-id)))
server-dat))
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(debug:print-info 0 *default-log-port* "Waiting for server alive signature")
(mutex-lock! *heartbeat-mutex*)
(set! sdat *server-info*)
(mutex-unlock! *heartbeat-mutex*)
(if (and sdat
(not changed)
(> (- (current-seconds) start-time) 2))
(let* ((servinfodir (conc *toppath*"/.servinfo"))
(let* ((servinfodir (server:get-servinfo-dir *toppath*)) ;; (conc *toppath*"/.servinfo"))
(ipaddr (car sdat))
(port (cadr sdat))
(servinf (conc servinfodir"/"ipaddr":"port)))
(set! servinfofile servinf)
(if (not (file-exists? servinfodir))
(create-directory servinfodir #t))
(with-output-to-file servinf
(lambda ()
(let* ((serv-id (server:mk-signature)))
(set! *server-id* serv-id)
(print "SERVER STARTED: "ipaddr":"port" AT "(current-seconds)" server-id: "serv-id" pid: "(current-process-id))
(print "started: "(seconds->year-week/day-time (current-seconds))))))
(set! *on-exit-procs* (cons
(lambda ()
(delete-file* servinf))
*on-exit-procs*))
;; put data about this server into a simple flat file host.port
(debug:print-info 0 *default-log-port* "Received server alive signature")
#;(common:save-pkt `((action . alive)
(T . server)
(pid . ,(current-process-id))
(ipaddr . ,(car sdat))
(port . ,(cadr sdat)))
*configdat* #t)
sdat)
(begin
(debug:print-info 0 *default-log-port* "Still waiting, last-sdat=" last-sdat)
(sleep 4)
(if (> (- (current-seconds) start-time) 120) ;; been waiting for two minutes
(if sdat
(let* ((ipaddr (car sdat))
(let* ((ipaddr (car sdat))
(port (cadr sdat))
(servinf (conc *toppath*"/.servinfo/"ipaddr":"port)))
(debug:print-error 0 *default-log-port* "transport appears to have died, exiting server")
(servinf (conc (server:get-servinfo-dir *toppath*)"/"ipaddr":"port)))
(debug:print-error 0 *default-log-port* "transport appears to have died, exiting server")
;; (delete-file* servinf) ;; handled by on-exit, can be removed
#;(common:save-pkt `((action . died)
(T . server)
(pid . ,(current-process-id))
(ipaddr . ,(car sdat))
(exit))
(port . ,(cadr sdat))
(msg . "Transport died?"))
*configdat* #t)
(exit))
(exit)
)
(loop start-time
(equal? sdat last-sdat)
sdat)))))))
(iface (car server-info))
(port (cadr server-info))
(last-access 0)
(server-timeout (server:expiration-timeout))
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(set! server-going #t)
(debug:print 0 *default-log-port* "SERVER: running, megatest version: " (common:get-full-version))) ;; NOTE: the server is NOT yet marked as running in the log. We do that in the keep-running routine.
(if (and no-sync-db
(common:low-noise-print 10 "sync-all")) ;; cheesy way to reduce frequency of running sync :)
(begin
(if (common:low-noise-print 120 "sync-all-print")
(debug:print 0 *default-log-port* "keep-running calling db:all-db-sync at " (time->string (seconds->local-time) "%H:%M:%S")))
(db:all-db-sync *dbstruct-dbs*))))
(db:all-db-sync *dbstruct-dbs*)
)))
;; when things go wrong we don't want to be doing the various queries too often
;; so we strive to run this stuff only every four seconds or so.
(let* ((sync-time (- (current-milliseconds) start-time))
(rem-time (quotient (- 4000 sync-time) 1000)))
(if (and (<= rem-time 4)
(> rem-time 0))
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(current-seconds)))
(if (common:low-noise-print 120 "server continuing")
(debug:print-info 0 *default-log-port* "Server continuing, seconds since last db access: " (- (current-seconds) last-access))
(let ((curr-time (current-seconds)))
(handle-exceptions
exn
(debug:print 0 *default-log-port* "ERROR: Failed to change timestamp on info file " servinfofile ". Are you out of space on that disk? exn=" exn)
(if (and (< (- (current-seconds) server-start-time) 600) ;; run for ten minutes for experiment, 3600 thereafter
(if (and ;; (< (- (current-seconds) server-start-time) 600) ;; run for ten minutes for experiment, 3600 thereafter
(not *server-overloaded*)
(file-exists? servinfofile))
(change-file-times servinfofile curr-time curr-time)))
(if (or (common:low-noise-print 120 "start new server")
(if (and (common:low-noise-print 120 "start new server")
(> *api-process-request-count* 50)) ;; if this server is kind of busy start up another
(begin
(debug:print-info 0 *default-log-port* "Server is busy, parallel-api-count "*api-process-request-count*", start another if possible...")
(debug:print-info 0 *default-log-port* "Server is busy, api-count "*api-process-request-count*", start another if possible...")
(server:kind-run *toppath*)
(if (> *api-process-request-count* 100)
(begin
(debug:print-info 0 *default-log-port* "Server is overloaded at parallel-api-count="*api-process-request-count*", removing "servinfofile)
(debug:print-info 0 *default-log-port* "Server is overloaded at api-count=" *api-process-request-count*", removing "servinfofile)
(delete-file* servinfofile)))))))
(loop 0 server-state bad-sync-count (current-milliseconds)))
(else
(debug:print-info 0 *default-log-port* "Server timed out. seconds since last db access: " (- (current-seconds) last-access))
(http-transport:server-shutdown port)))))))
(define (http-transport:server-shutdown port)
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(exit)))
;; all routes though here end in exit ...
;;
;; start_server?
;;
(define (http-transport:launch)
;; check that a server start is in progress, pause or exit if so
(let* ((tmp-area (common:get-db-tmp-area))
(server-start (conc tmp-area "/.server-start"))
;; check the .servinfo directory, are there other servers running on this
;; or another host?
(let* ((server-start-is-ok (server:minimal-check *toppath*)))
(server-started (conc tmp-area "/.server-started"))
(start-time (common:lazy-modification-time server-start))
(started-time (common:lazy-modification-time server-started))
(server-starting (< start-time started-time)) ;; if start-time is less than started-time then a server is still starting
(start-time-old (> (- (current-seconds) start-time) 5))
(cleanup-proc (lambda (msg)
(let* ((serv-fname (conc "server-" (current-process-id) "-" (get-host-name) ".log"))
(full-serv-fname (conc *toppath* "/logs/" serv-fname))
(new-serv-fname (conc *toppath* "/logs/" "defunct-" serv-fname)))
(debug:print 0 *default-log-port* msg)
(if (common:file-exists? full-serv-fname)
(system (conc "sleep 1;mv -f " full-serv-fname " " new-serv-fname))
(debug:print 0 *default-log-port* "INFO: cannot move " full-serv-fname " to " new-serv-fname))
(exit)))))
#;(if (and (not start-time-old) ;; last server start try was less than five seconds ago
(not server-starting))
(if (not server-start-is-ok)
(begin
(cleanup-proc "NOT starting server, there is either a recently started server or a server in process of starting")
(exit)))
;; lets not even bother to start if there are already three or more server files ready to go
#;(let* ((num-alive (server:get-num-alive (server:get-list *toppath*))))
(if (> num-alive 3)
(begin
(cleanup-proc (conc "ERROR: Aborting server start because there are already " num-alive " possible servers either running or starting up"))
(exit))))
#;(common:save-pkt `((action . start)
(T . server)
(debug:print 0 *default-log-port* "ERROR: server start not ok, exiting now.")
(exit 1))))
;; check that a server start is in progress, pause or exit if so
(pid . ,(current-process-id)))
*configdat* #t)
(let* ((th2 (make-thread (lambda ()
(debug:print-info 0 *default-log-port* "Server run thread started")
(http-transport:run
(if (args:get-arg "-server")
(args:get-arg "-server")
"-")
)) "Server run"))
(th3 (make-thread (lambda ()
(debug:print-info 0 *default-log-port* "Server monitor thread started")
(http-transport:keep-running)
"Keep running"))))
(thread-start! th2)
(thread-sleep! 0.25) ;; give the server time to settle before starting the keep-running monitor.
(thread-start! th3)
(set! *didsomething* #t)
(thread-join! th2)
(exit))))
(let* ((th2 (make-thread (lambda ()
(debug:print-info 0 *default-log-port* "Server run thread started")
(http-transport:run
(if (args:get-arg "-server")
(args:get-arg "-server")
"-")
)) "Server run"))
(th3 (make-thread (lambda ()
(debug:print-info 0 *default-log-port* "Server monitor thread started")
(http-transport:keep-running)
"Keep running"))))
(thread-start! th2)
(thread-sleep! 0.25) ;; give the server time to settle before starting the keep-running monitor.
(thread-start! th3)
(set! *didsomething* #t)
(thread-join! th2)
(exit)))
;; (define (http-transport:server-signal-handler signum)
;; (signal-mask! signum)
;; (handle-exceptions
;; exn
;; (debug:print 0 *default-log-port* " ... exiting ...")
;; (let ((th1 (make-thread (lambda ()
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;; reset the connection if it has been unused too long
((and runremote
(remote-conndat runremote)
(> (current-seconds) ;; if it has been more than server-timeout seconds since last contact, close this connection and start a new on
(+ (http-transport:server-dat-get-last-access (remote-conndat runremote))
(remote-server-timeout runremote))))
(debug:print-info 0 *default-log-port* "Connection to " (remote-server-url runremote) " expired due to no accesses, forcing new connection.")
(http-transport:close-connections runremote)
;; moving this setting of runremote conndat to #f to inside the http-transport:close-connections
(remote-conndat-set! runremote #f) ;; invalidate the connection, thus forcing a new connection.
;; (remote-conndat-set! runremote #f) ;; invalidate the connection, thus forcing a new connection.
(http-transport:close-connections area-dat: runremote)
(mutex-unlock! *rmt-mutex*)
(rmt:send-receive cmd rid params attemptnum: attemptnum))
;;DOT CASE5 [label="local\nread"];
;;DOT MUTEXLOCK -> CASE5 [label="server not required,\non homehost,\nread-only query"]; {rank=same "case 5" CASE5};
;;DOT CASE5 -> "rmt:open-qry-close-locally";
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(success (if (vector? dat) (vector-ref dat 0) #f))
(res (if (vector? dat) (vector-ref dat 1) #f)))
(if (and (vector? conninfo) (< 5 (vector-length conninfo)))
(http-transport:server-dat-update-last-access conninfo) ;; refresh access time
(begin
(debug:print 0 *default-log-port* "INFO: Should not get here! conninfo=" conninfo)
(set! conninfo #f)
(remote-conndat-set! *runremote* #f) ;; NOTE: *runremote* is global copy of runremote. Purpose: factor out global.
(http-transport:close-connections area-dat: runremote)))
(http-transport:close-connections runremote)))
(debug:print-info 13 *default-log-port* "rmt:send-receive, case 9. conninfo=" conninfo " dat=" dat " runremote = " runremote)
(mutex-unlock! *rmt-mutex*)
(if success ;; success only tells us that the transport was
;; successful, have to examine the data to see if
;; there was a detected issue at the other end
(extras-transport-succeded *default-log-port* *rmt-mutex* attemptnum runremote res params rid cmd)
(begin
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(debug:print-info 12 log-port "rmt:send-receive, case 3")
(debug:print 0 log-port "WARNING: write transaction requested on a readonly area. cmd="cmd" params="params)
#f)
(define (extras-transport-failed *default-log-port* *rmt-mutex* attemptnum runremote cmd rid params)
(debug:print 0 *default-log-port* "WARNING: communication failed. Trying again, try num: " attemptnum)
(mutex-lock! *rmt-mutex*)
(remote-conndat-set! runremote #f)
(http-transport:close-connections area-dat: runremote)
(http-transport:close-connections runremote)
(remote-server-url-set! runremote #f)
(mutex-unlock! *rmt-mutex*)
(debug:print-info 12 *default-log-port* "rmt:send-receive, case 9.1")
(rmt:send-receive cmd rid params attemptnum: (+ attemptnum 1)))
(define (extras-transport-succeded *default-log-port* *rmt-mutex* attemptnum runremote res params rid cmd)
(if (and (vector? res)
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;; server is
;; overloaded and we
;; want to ease off
;; the queries
(let ((wait-delay (+ attemptnum (* attemptnum 10))))
(debug:print 0 *default-log-port* "WARNING: server is overloaded. Delaying " wait-delay " seconds and trying call again.")
(mutex-lock! *rmt-mutex*)
(http-transport:close-connections area-dat: runremote)
(http-transport:close-connections runremote)
(set! *runremote* #f) ;; force starting over
(mutex-unlock! *rmt-mutex*)
(thread-sleep! wait-delay)
(rmt:send-receive cmd rid params attemptnum: (+ attemptnum 1)))
res)) ;; All good, return res
#;(set-functions rmt:send-receive remote-server-url-set!
http-transport:close-connections remote-conndat-set!
debug:print debug:print-info
remote-ro-mode remote-ro-mode-set!
remote-ro-mode-checked-set! remote-ro-mode-checked)
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;;======================================================================
;; S E R V E R
;;======================================================================
;; Call this to start the actual server
;;
;; all routes though here end in exit ...
;;
;; start_server
;;
(define (server:launch run-id transport-type)
(case transport-type
((http)(http-transport:launch))
;;((nmsg)(nmsg-transport:launch run-id))
;;((rpc) (rpc-transport:launch run-id))
(else (debug:print-error 0 *default-log-port* "unknown server type " transport-type))))
;;======================================================================
;; S E R V E R U T I L I T I E S
;;======================================================================
;; Get the transport
(define (server:get-transport)
(if *transport-type*
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;; Given an area path, start a server process ### NOTE ### > file 2>&1
;; if the target-host is set
;; try running on that host
;; incidental: rotate logs in logs/ dir.
;;
(define (server:run areapath) ;; areapath is *toppath* for a given testsuite area
(let* (;; (curr-host (get-host-name))
;; (attempt-in-progress (server:start-attempted? areapath))
;; (dot-server-url (server:check-if-running areapath))
;; (curr-ip (server:get-best-guess-address curr-host))
;; (curr-pid (current-process-id))
;; (homehost (server:get-homehost)) ;; configf:lookup *configdat* "server" "homehost" ))
;; (target-host (car homehost))
(testsuite (common:get-testsuite-name))
(let* ((testsuite (common:get-testsuite-name))
(logfile (conc areapath "/logs/server.log")) ;; -" curr-pid "-" target-host ".log"))
(profile-mode (or (configf:lookup *configdat* "misc" "profilesw")
""))
(cmdln (conc (common:get-megatest-exe)
" -server - ";; (or target-host "-")
(if (equal? (configf:lookup *configdat* "server" "daemonize") "yes")
" -daemonize "
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(define (server:logf-get-start-info logf)
(let ((server-rx (regexp "^SERVER STARTED: (\\S+):(\\d+) AT ([\\d\\.]+) server-id: (\\S+) pid: (\\d+)")) ;; SERVER STARTED: host:port AT timesecs server id
(dbprep-rx (regexp "^SERVER: dbprep"))
(dbprep-found 0)
(bad-dat (list #f #f #f #f #f)))
(handle-exceptions
exn
(begin
(debug:print-info 0 *default-log-port* "Unable to get server info from " logf ", exn=" exn)
bad-dat) ;; no idea what went wrong, call it a bad server
(with-input-from-file
logf
(lambda ()
(let loop ((inl (read-line))
(lnum 0))
(if (not (eof-object? inl))
(let ((mlst (string-match server-rx inl))
(dbprep (string-match dbprep-rx inl)))
(if dbprep (set! dbprep-found 1))
(if (not mlst)
(if (< lnum 500) ;; give up if more than 500 lines of server log read
(loop (read-line)(+ lnum 1))
(begin
exn
(begin
;; WARNING: this is potentially dangerous to blanket ignore the errors
(if (file-exists? logf)
(debug:print-info 2 *default-log-port* "Unable to get server info from "logf", exn=" exn))
bad-dat) ;; no idea what went wrong, call it a bad server
(with-input-from-file
logf
(lambda ()
(let loop ((inl (read-line))
(lnum 0))
(if (not (eof-object? inl))
(let ((mlst (string-match server-rx inl))
(dbprep (string-match dbprep-rx inl)))
(if dbprep (set! dbprep-found 1))
(if (not mlst)
(if (< lnum 500) ;; give up if more than 500 lines of server log read
(loop (read-line)(+ lnum 1))
(begin
(debug:print-info 0 *default-log-port* "Unable to get server info from first 500 lines of " logf )
bad-dat))
(match mlst
((_ host port start server-id pid)
(list host
(string->number port)
(string->number start)
server-id
(string->number pid)))
(else
(debug:print 0 *current-log-port* "ERROR: did not recognise SERVER line info "mlst)
bad-dat))))
(begin
(if dbprep-found
(begin
(debug:print-info 2 *default-log-port* "Server is in dbprep at " (common:human-time))
(thread-sleep! 0.5)) ;; was 25 sec but that blocked things from starting?
(debug:print-info 0 *default-log-port* "Unable to get server info from " logf " at " (seconds->time-string (current-seconds))))
bad-dat))))))))
(match mlst
((_ host port start server-id pid)
(list host
(string->number port)
(string->number start)
server-id
(string->number pid)))
(else
(debug:print 0 *current-log-port* "ERROR: did not recognise SERVER line info "mlst)
bad-dat))))
(begin
(if dbprep-found
(begin
(debug:print-info 2 *default-log-port* "Server is in dbprep at " (common:human-time))
(thread-sleep! 0.5)) ;; was 25 sec but that blocked things from starting?
(debug:print-info 0 *default-log-port* "Unable to get server info from " logf " at " (seconds->time-string (current-seconds))))
bad-dat))))))))
;; ;; get a list of servers from the log files, with all relevant data
;; ;; ( mod-time host port start-time pid )
;; ;;
;; (define (server:get-list areapath #!key (limit #f))
;; (let ((fname-rx (regexp "^(|.*/)server-(\\d+)-(\\S+).log$"))
;; (day-seconds (* 24 60 60)))
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(thread-sleep! ( + 1 idletime))
(server:wait-for-server-start-last-flag areapath)))))))
;; oldest server alive determines host then choose random of youngest
;; five servers on that host
;;
(define (server:get-servers-info areapath)
;; (assert *toppath* "FATAL: server:get-servers-info called before *toppath* has been set.")
(let* ((servinfodir (conc *toppath*"/.servinfo")))
(let* ((servinfodir (server:get-servinfo-dir areapath))) ;; (conc *toppath*"/.servinfo")))
(if (not (file-exists? servinfodir))
(create-directory servinfodir))
(let* ((allfiles (glob (conc servinfodir"/*")))
(res (make-hash-table)))
(for-each
(lambda (f)
(let* ((hostport (pathname-strip-directory f))
(serverdat (server:logf-get-start-info f)))
(match serverdat
((host port start server-id pid)
(if (and host port start server-id pid)
(hash-table-set! res hostport serverdat)
(debug:print-info 0 *default-log-port* "bad server info for "f": "serverdat)))
(debug:print-info 2 *default-log-port* "bad server info for "f": "serverdat)))
(else
(debug:print-info 0 *default-log-port* "bad server info for "f": "serverdat)))))
(debug:print-info 2 *default-log-port* "bad server info for "f": "serverdat)))))
allfiles)
res)))
;; check the .servinfo directory, are there other servers running on this
;; or another host?
;;
;; returns #t => ok to start another server
;; #f => not ok to start another server
;;
(define (server:minimal-check areapath)
(server:clean-up-old areapath)
(let* ((srvdir (server:get-servinfo-dir areapath)) ;; (conc areapath"/.servinfo"))
(servrs (glob (conc srvdir"/*")))
(thishostip (server:get-best-guess-address (get-host-name)))
(thisservrs (glob (conc srvdir"/"thishostip":*")))
(homehostinf (server:choose-server areapath 'homehost))
(havehome (car homehostinf))
(wearehome (cdr homehostinf)))
(debug:print-info 0 *default-log-port* thishostip", have homehost: "havehome", we are homehost: "wearehome
", numservers: "(length thisservrs))
(cond
((not havehome) #t) ;; no homehost yet, go for it
((and havehome wearehome (< (length thisservrs) 20)) #t) ;; we are home and less than 20 servers, ok to start another
((and havehome (not wearehome)) #f) ;; we are not the home host
((and havehome wearehome (>= (length thisservrs) 20)) #f) ;; have enough running
(else
(debug:print 0 *default-log-port* "WARNING: Unrecognised scenario, servrs="servrs", thishostip="thishostip", thisservrs="thisservrs)
#t))))
(define server-last-start 0)
;; oldest server alive determines host then choose random of youngest
;; five servers on that host
;;
;; mode:
;; best - get best server (random of newest five)
;; home - get home host based on oldest server
;; info - print info
(define (server:choose-server areapath #!optional (mode 'best))
;; age is current-starttime
;; find oldest alive
;; 1. sort by age ascending and ping until good
;; find alive rand from youngest
;; 1. sort by age descending
;; 2. take five
;; 3. check alive, discard if not and repeat
;; first we clean up old server files
(server:clean-up-old areapath)
(let* ((since-last (- (current-seconds) server-last-start))
(server-start-delay 10))
(if ( < (- (current-seconds) server-last-start) 10 )
(begin
(debug:print 2 *default-log-port* "server:choose-server: seconds since last server start: " (- (current-seconds) server-last-start))
(debug:print 2 *default-log-port* "server:choose-server: last server start less than " server-start-delay " seconds ago. Sleeping " server-start-delay " seconds")
(thread-sleep! server-start-delay)
)
(debug:print 2 *default-log-port* "server:choose-server: seconds since last server start: " (- (current-seconds) server-last-start))
)
)
(let* ((serversdat (server:get-servers-info areapath))
(servkeys (hash-table-keys serversdat))
(by-time-asc (if (not (null? servkeys))
(by-time-asc (if (not (null? servkeys)) ;; NOTE: Oldest is last
(sort servkeys ;; list of "host:port"
(lambda (a b)
(>= (list-ref (hash-table-ref serversdat a) 2)
(list-ref (hash-table-ref serversdat b) 2))))
'())))
(debug:print 2 *default-log-port* "server:choose-server: serversdat: " serversdat)
(debug:print 2 *default-log-port* "server:choose-server: servkeys: " servkeys)
(if (not (null? by-time-asc))
(let* ((oldest (last by-time-asc))
(oldest-dat (hash-table-ref serversdat oldest))
(host (list-ref oldest-dat 0))
(all-valid (filter (lambda (x)
(equal? host (list-ref (hash-table-ref serversdat x) 0)))
by-time-asc))
(best-five (lambda ()
(if (> (length all-valid) 5)
(take all-valid 5)
all-valid)))
(best-ten (lambda ()
(if (> (length all-valid) 11)
(take (drop-right all-valid 1) 10) ;; remove the oldest from consideration so it can age out
(if (> (length all-valid) 8)
(drop-right all-valid 1)
all-valid))))
(names->dats (lambda (names)
(map (lambda (x)
(hash-table-ref serversdat x))
names)))
(am-home? (lambda ()
(let* ((currhost (get-host-name))
(bestadrs (server:get-best-guess-address currhost)))
(or (equal? host currhost)
(equal? host bestadrs))))))
(case mode
((info)
(print "oldest: "oldest-dat", selected host: "host", all-valid: "all-valid)
(print "youngest: "(hash-table-ref serversdat (car all-valid))))
((home) host)
((homehost) (cons host (am-home?))) ;; shut up old code
((home?) (am-home?))
((best-five)(names->dats (best-five)))
((best-ten)(names->dats (best-ten)))
((all-valid)(names->dats all-valid))
((best) (let* ((best-five (best-five))
(len (length best-five)))
(hash-table-ref serversdat (list-ref best-five (random len)))))
((best) (let* ((best-ten (best-ten))
(len (length best-ten)))
(hash-table-ref serversdat (list-ref best-ten (random len)))))
((count)(length all-valid))
(else
(debug:print 0 *default-log-port* "ERROR: invalid command "mode)
#f)))
(begin
(server:run areapath)
(set! server-last-start (current-seconds))
(thread-sleep! 3)
;; (thread-sleep! 3)
(case mode
((homehost) (cons #f #f))
(else #f))))))
(define (server:get-servinfo-dir areapath)
(let* ((spath (conc areapath"/.servinfo")))
(if (not (file-exists? spath))
(create-directory spath #t))
spath))
(define (server:clean-up-old areapath)
;; any server file that has not been touched in ten minutes is effectively dead
(let* ((sfiles (glob (conc (server:get-servinfo-dir areapath)"/*"))))
(for-each
(lambda (sfile)
(let* ((modtime (handle-exceptions
exn
(begin
(debug:print 0 *default-log-port* "WARNING: failed to get modification file for "sfile)
(current-seconds))
(file-modification-time sfile))))
(if (and (number? modtime)
(> (- (current-seconds) modtime)
600))
(begin
(debug:print 0 *default-log-port* "WARNING: found old server info file "sfile", removing it.")
(handle-exceptions
exn
(debug:print 0 *default-log-port* "WARNING: failed to delete old server info file "sfile)
(delete-file sfile))))))
sfiles)))
;; would like to eventually get rid of this
;;
(define (common:on-homehost?)
(server:choose-server *toppath* 'home?))
;; kind start up of server, wait before allowing another server for a given
;; area to be launched
;;
(define (server:kind-run areapath)
;; look for $MT_RUN_AREA_HOME/logs/server-start-last
;; and wait for it to be at least <server idletime> seconds old
;; (server:wait-for-server-start-last-flag areapath)
(let loop ()
(if (> (alist-ref 'adj-proc-load (common:get-normalized-cpu-load #f)) 2)
(begin
(if (common:low-noise-print 30 "our-host-load")
(debug:print 0 *default-log-port* "WARNING: system load is high, waiting to start server."))
(loop))))
(if (< (server:choose-server areapath 'count) 10)
(if (< (server:choose-server areapath 'count) 20)
(server:run areapath))
#;(if (not (server:check-if-running areapath)) ;; why try if there is already a server running?
(let* ((lock-file (conc areapath "/logs/server-start.lock")))
(let* ((start-flag (conc areapath "/logs/server-start-last")))
(common:simple-file-lock-and-wait lock-file expire-time: 25)
(debug:print-info 2 *default-log-port* "server:kind-run: touching " start-flag)
(system (conc "touch " start-flag)) ;; lazy but safe
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(define (server:start-and-wait areapath #!key (timeout 60))
(let ((give-up-time (+ (current-seconds) timeout)))
(let loop ((server-info (server:check-if-running areapath))
(try-num 0))
(if (or server-info
(> (current-seconds) give-up-time)) ;; server-url will be #f if no server available.
(server:record->url server-info)
(let* ( (servers (server:choose-server areapath 'all-valid))
(let ((num-ok (length (server:choose-server areapath 'all-valid))))
(num-ok (if servers (length (server:choose-server areapath 'all-valid)) 0)))
(if (and (> try-num 0) ;; first time through simply wait a little while then try again
(< num-ok 1)) ;; if there are no decent candidates for servers then try starting a new one
(server:run areapath))
(thread-sleep! 5)
(loop (server:check-if-running areapath)
(+ try-num 1)))))))
(define (server:get-num-servers #!key (numservers 2))
(let ((ns (string->number
(or (configf:lookup *configdat* "server" "numservers") "notanumber"))))
(or ns numservers)))
;; no longer care if multiple servers are started by accident. older servers will drop off in time.
;;
(define (server:check-if-running areapath) ;; #!key (numservers "2"))
(let* ((ns (server:get-num-servers)) ;; get the setting the for maximum number of servers allowed
(servers (server:choose-server areapath 'best-five))) ;; (server:get-best (server:get-list areapath))))
(servers (server:choose-server areapath 'best-ten))) ;; (server:get-best (server:get-list areapath))))
(if (or (and servers
(null? servers))
(not servers))
;; (and (list? servers)
;; (< (length servers) (+ 1 (random ns))))) ;; somewhere between 1 and numservers
#f
(let loop ((hed (car servers))
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;; Default is 60 seconds.
;;
(define (server:expiration-timeout)
(let ((tmo (configf:lookup *configdat* "server" "timeout")))
(if (and (string? tmo)
(common:hms-string->seconds tmo)) ;; BUG: hms-string->seconds is broken, if given "10" returns 0. Also, it doesn't belong in this logic unless the string->number is changed below
(* 3600 (string->number tmo))
60)))
600)))
(define (server:get-best-guess-address hostname)
(let ((res #f))
(for-each
(lambda (adr)
(if (not (eq? (u8vector-ref adr 0) 127))
(set! res adr)))
|
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