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;; (define (client:connect iface port)
;; (case (server:get-transport)
;; ((rpc) (rpc:client-connect iface port))
;; ((http) (http:client-connect iface port))
;; ((zmq) (zmq:client-connect iface port))
;; (else (rpc:client-connect iface port))))
(define (client:setup run-id #!key (remaining-tries 10))
(debug:print-info 2 *default-log-port* "client:setup remaining-tries=" remaining-tries)
(let* ((server-dat (tasks:bb-get-server-info run-id))
(transport (if server-dat (tasks:hostinfo-get-transport server-dat) 'noserver)))
(case transport
((noserver) ;; no server registered
(if (<= remaining-tries 0)
(begin
(debug:print-error 0 *default-log-port* "failed to start or connect to server for run-id " run-id)
(exit 1))
(begin
(let ((num-available (tasks:bb-num-in-available-state run-id)))
(debug:print-info 0 *default-log-port* "client:setup, no server registered, remaining-tries=" remaining-tries " num-available=" num-available)
(if (< num-available 2)
(server:try-running run-id))
(thread-sleep! (+ 5 (random (- 20 remaining-tries)))) ;; give server a little time to start up, randomize a little to avoid start storms.
(client:setup run-id remaining-tries: (- remaining-tries 1))))))
((http)(client:setup-http server-dat run-id remaining-tries))
;; ((rpc) (rpc-transport:client-setup run-id)) ;;(client:setup-rpc run-id)) rpc not implemented; want to see a failure here for now.
(else
(debug:print-error 0 *default-log-port* "Unknown transport ["
transport "] specified used by server for run-id " run-id)
(exit 1)))))
(define (client:setup-http run-id server-dat remaining-tries)
(let* ((iface (tasks:hostinfo-get-interface server-dat))
(hostname (tasks:hostinfo-get-hostname server-dat))
(port (tasks:hostinfo-get-port server-dat))
(start-res (http-transport:client-connect iface port))
(ping-res (rmt:login-no-auto-client-setup start-res run-id)))
(if (and start-res ping-res)
(begin
(hash-table-set! *runremote* run-id start-res)
(debug:print-info 2 *default-log-port* "connected to " (http-transport:server-dat-make-url start-res))
start-res)
(begin ;; login failed but have a server record, clean out the record and try again
(debug:print-info 0 *default-log-port* "client:setup, login failed, will attempt to start server ... start-res=" start-res ", run-id=" run-id ", server-dat=" server-dat)
(http-transport:close-connections run-id)
(hash-table-delete! *runremote* run-id)
(tasks:kill-server-run-id run-id)
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;; (define (client:connect iface port)
;; (case (server:get-transport)
;; ((rpc) (rpc:client-connect iface port))
;; ((http) (http:client-connect iface port))
;; ((zmq) (zmq:client-connect iface port))
;; (else (rpc:client-connect iface port))))
(define (client:setup run-id #!key (remaining-tries 10))
(debug:print-info 2 *default-log-port* "client:setup remaining-tries=" remaining-tries)
(let* ((server-dat (tasks:bb-get-server-info run-id))
(transport (if server-dat (string->symbol (tasks:hostinfo-get-transport server-dat)) 'noserver)))
;;(BB> "transport >"transport"< string? transport >"(string? transport)"< symbol? transport >"(symbol? transport)"<")
(case transport
((noserver) ;; no server registered
(if (<= remaining-tries 0)
(begin
(debug:print-error 0 *default-log-port* "failed to start or connect to server for run-id " run-id)
(exit 1))
(begin
(let ((num-available (tasks:bb-num-in-available-state run-id)))
(debug:print-info 0 *default-log-port* "client:setup, no server registered, remaining-tries=" remaining-tries " num-available=" num-available)
(if (< num-available 2)
(server:try-running run-id))
(thread-sleep! (+ 5 (random (- 20 remaining-tries)))) ;; give server a little time to start up, randomize a little to avoid start storms.
(client:setup run-id remaining-tries: (- remaining-tries 1))))))
((http)(client:setup-http run-id server-dat remaining-tries))
;; ((rpc) (rpc-transport:client-setup run-id)) ;;(client:setup-rpc run-id)) rpc not implemented; want to see a failure here for now.
(else
(debug:print-error 0 *default-log-port* "Transport ["
transport "] specified for run-id [" run-id "] is not implemented in client:setup. Cannot proceed.")
(exit 1)))))
;; client:setup-http
;;
;; For http transport, robustly ensure an advertised-running server is actually working and responding, and
;; establish tcp connection to server. For servers marked running but not responding, kill them and clear from mdb
;;
(define (client:setup-http run-id server-dat remaining-tries)
(let* ((iface (tasks:hostinfo-get-interface server-dat))
(hostname (tasks:hostinfo-get-hostname server-dat))
(port (tasks:hostinfo-get-port server-dat))
(start-res (http-transport:client-connect iface port))
(ping-res (rmt:login-no-auto-client-setup start-res run-id)))
(if (and start-res ping-res)
(begin
(hash-table-set! *runremote* run-id start-res) ;; side-effect - *runremote* cache init fpr rmt:*
(debug:print-info 2 *default-log-port* "connected to " (http-transport:server-dat-make-url start-res))
start-res)
(begin ;; login failed but have a server record, clean out the record and try again
(debug:print-info 0 *default-log-port* "client:setup, login failed, will attempt to start server ... start-res=" start-res ", run-id=" run-id ", server-dat=" server-dat)
(http-transport:close-connections run-id)
(hash-table-delete! *runremote* run-id)
(tasks:kill-server-run-id run-id)
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