Overview
| Comment: | Taper the sleeps depending on how many times through the send-receive procedure. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | v1.65 |
| Files: | files | file ages | folders |
| SHA1: |
224048bd1995aca9704c0bd8e3702b3d |
| User & Date: | mrwellan on 2020-01-28 13:57:39 |
| Other Links: | branch diff | manifest | tags |
Context
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2020-01-28
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| 14:59 | Tweak heuristics on attemptnum sleeps check-in: 844ff4c128 user: mrwellan tags: v1.65 | |
| 13:57 | Taper the sleeps depending on how many times through the send-receive procedure. check-in: 224048bd19 user: mrwellan tags: v1.65 | |
| 10:54 | Attempt to fix the 'infinite read-only checking' bug'. Not working fully check-in: 578c1ae242 user: jmoon18 tags: v1.65 | |
Changes
Modified rmt.scm from [da7473fc64] to [46ee8b9727].
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;; 2. check the age of the connections. refresh the connection if it is older than timeout-20 seconds.
;; 3. do the query, if on homehost use local access
;;
(let* ((start-time (current-seconds)) ;; snapshot time so all use cases get same value
(areapath *toppath*);; TODO - resolve from dbstruct to be compatible with multiple areas
(runremote (or area-dat
*runremote*))
| | > > > > > > > | 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 |
;; 2. check the age of the connections. refresh the connection if it is older than timeout-20 seconds.
;; 3. do the query, if on homehost use local access
;;
(let* ((start-time (current-seconds)) ;; snapshot time so all use cases get same value
(areapath *toppath*);; TODO - resolve from dbstruct to be compatible with multiple areas
(runremote (or area-dat
*runremote*))
(attemptnum (+ 1 attemptnum))
(readonly-mode (rmtmod:calc-ro-mode runremote *toppath*)))
;; DOT INIT_RUNREMOTE; // leaving off - doesn't really add to the clarity
;; DOT MUTEXLOCK -> INIT_RUNREMOTE [label="no remote?"];
;; DOT INIT_RUNREMOTE -> MUTEXLOCK;
;; ensure we have a record for our connection for given area
(if (not runremote) ;; can remove this one. should never get here.
(begin
(set! *runremote* (make-remote))
(set! runremote *runremote*))) ;; new runremote will come from this on next iteration
;; DOT SET_HOMEHOST; // leaving off - doesn't really add to the clarity
;; DOT MUTEXLOCK -> SET_HOMEHOST [label="no homehost?"];
;; DOT SET_HOMEHOST -> MUTEXLOCK;
;; ensure we have a homehost record
(if (not (pair? (remote-hh-dat runremote))) ;; not on homehost
(thread-sleep! 0.1) ;; since we shouldn't get here, delay a little
(remote-hh-dat-set! runremote (common:get-homehost)))
(cond
((> attemptnum 1) (thread-sleep! 0.1))
((> attemptnum 5) (thread-sleep! 0.5))
((> attemptnum 10)
(debug:print 1 "INFO: attemptnum in rmt:send-receive is " attemptnum)
(thread-sleep! (/ attemptnum 5))))
;;(print "BB> readonly-mode is "readonly-mode" dbfile is "dbfile)
(cond
;;DOT EXIT;
;;DOT MUTEXLOCK -> EXIT [label="> 15 attempts"]; {rank=same "case 1" "EXIT" }
;; give up if more than 15 attempts
((> attemptnum 15)
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