`/index/{prefix:[0-9a-f]{0,32}}`, IndexHandler).Methods("GET", "HEAD")
rest.HandleFunc(`/status.json`, StatusHandler).Methods("GET", "HEAD")
- // The PullHandler processes "PUT /pull" commands from Data Manager.
- // It parses the JSON list of pull requests in the request body, and
- // delivers them to the pull list manager for replication.
+ // The PullHandler and TrashHandler process "PUT /pull" and "PUT
+ // /trash" requests from Data Manager. These requests instruct
+ // Keep to replicate or delete blocks; see
+ // https://arvados.org/projects/arvados/wiki/Keep_Design_Doc
+ // for more details.
+ //
+ // Each handler parses the JSON list of block management requests
+ // in the message body, and replaces any existing pull queue or
+ // trash queue with their contentes.
+ //
rest.HandleFunc(`/pull`, PullHandler).Methods("PUT")
+ rest.HandleFunc(`/trash`, TrashHandler).Methods("PUT")
// Any request which does not match any of these routes gets
// 400 Bad Request.
func PullHandler(resp http.ResponseWriter, req *http.Request) {
// Reject unauthorized requests.
- api_token := GetApiToken(req)
- if !IsDataManagerToken(api_token) {
+ if !IsDataManagerToken(GetApiToken(req)) {
http.Error(resp, UnauthorizedError.Error(), UnauthorizedError.HTTPCode)
log.Printf("%s %s: %s\n", req.Method, req.URL, UnauthorizedError.Error())
return
pullq.ReplaceQueue(plist)
}
+type TrashRequest struct {
+ Locator string `json:"locator"`
+ BlockMtime int64 `json:"block_mtime"`
+}
+
+func TrashHandler(resp http.ResponseWriter, req *http.Request) {
+ // Reject unauthorized requests.
+ if !IsDataManagerToken(GetApiToken(req)) {
+ http.Error(resp, UnauthorizedError.Error(), UnauthorizedError.HTTPCode)
+ log.Printf("%s %s: %s\n", req.Method, req.URL, UnauthorizedError.Error())
+ return
+ }
+
+ // Parse the request body.
+ var trash []TrashRequest
+ r := json.NewDecoder(req.Body)
+ if err := r.Decode(&trash); err != nil {
+ http.Error(resp, BadRequestError.Error(), BadRequestError.HTTPCode)
+ log.Printf("%s %s: %s\n", req.Method, req.URL, err.Error())
+ return
+ }
+
+ // We have a properly formatted trash list sent from the data
+ // manager. Report success and send the list to the trash work
+ // queue for further handling.
+ log.Printf("%s %s: received %v\n", req.Method, req.URL, trash)
+ resp.WriteHeader(http.StatusOK)
+ resp.Write([]byte(
+ fmt.Sprintf("Received %d trash requests\n", len(trash))))
+
+ tlist := list.New()
+ for _, t := range trash {
+ tlist.PushBack(t)
+ }
+
+ if trashq == nil {
+ trashq = NewWorkQueue()
+ }
+ trashq.ReplaceQueue(tlist)
+}
+
// ==============================
// GetBlock and PutBlock implement lower-level code for handling
// blocks by rooting through volumes connected to the local machine.