httpserver.Error(w, "Federated multi-object may not provide 'limit', 'offset' or 'order'.", http.StatusBadRequest)
return true
}
- if expectCount > h.handler.Cluster.RequestLimits.GetMaxItemsPerResponse() {
+ if max := h.handler.Cluster.API.MaxItemsPerResponse; expectCount > max {
httpserver.Error(w, fmt.Sprintf("Federated multi-object request for %v objects which is more than max page size %v.",
- expectCount, h.handler.Cluster.RequestLimits.GetMaxItemsPerResponse()), http.StatusBadRequest)
+ expectCount, max), http.StatusBadRequest)
return true
}
if req.Form.Get("select") != "" {
// Perform concurrent requests to each cluster
- // use channel as a semaphore to limit the number of concurrent
- // requests at a time
- sem := make(chan bool, h.handler.Cluster.RequestLimits.GetMultiClusterRequestConcurrency())
- defer close(sem)
+ acquire, release := semaphore(h.handler.Cluster.API.MaxRequestAmplification)
wg := sync.WaitGroup{}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
// Nothing to query
continue
}
-
- // blocks until it can put a value into the
- // channel (which has a max queue capacity)
- sem <- true
+ acquire()
wg.Add(1)
go func(k string, v []string) {
+ defer release()
+ defer wg.Done()
rp, kn, err := h.remoteQueryUUIDs(w, req, k, v)
mtx.Lock()
+ defer mtx.Unlock()
if err == nil {
completeResponses = append(completeResponses, rp...)
kind = kn
} else {
errors = append(errors, err)
}
- mtx.Unlock()
- wg.Done()
- <-sem
}(k, v)
}
wg.Wait()
return
}
+ var uuid string
+ if len(m[1]) > 0 {
+ // trim leading slash
+ uuid = m[1][1:]
+ }
for _, d := range h.delegates {
- if d(h, effectiveMethod, &clusterId, m[1], m[3], w, req) {
+ if d(h, effectiveMethod, &clusterId, uuid, m[3], w, req) {
return
}
}