frostfs-node/pkg/services/container/announcement/load/route/calls.go
Evgenii Stratonikov 0e31c12e63 [#240] logs: Move log messages to constants
Drop duplicate entities.
Format entities.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-04-14 05:06:09 +00:00

145 lines
3.3 KiB
Go

package loadroute
import (
"context"
"encoding/hex"
"sync"
"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
loadcontroller "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/container/announcement/load/controller"
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
"go.uber.org/zap"
)
// InitWriter initializes and returns Writer that sends each value to its next route point.
//
// If route is present, then it is taken into account,
// and the value will be sent to its continuation. Otherwise, the route will be laid
// from scratch and the value will be sent to its primary point.
//
// After building a list of remote points of the next leg of the route, the value is sent
// sequentially to all of them. If any transmissions (even all) fail, an error will not
// be returned.
//
// Close of the composed Writer calls Close method on each internal Writer generated in
// runtime and never returns an error.
//
// Always returns nil error.
func (r *Router) InitWriter(route []loadcontroller.ServerInfo) (loadcontroller.Writer, error) {
if len(route) == 0 {
route = []loadcontroller.ServerInfo{r.localSrvInfo}
}
return &loadWriter{
router: r,
route: route,
mRoute: make(map[routeKey]*valuesRoute),
mServers: make(map[string]loadcontroller.Writer),
}, nil
}
type routeKey struct {
epoch uint64
cid string
}
type valuesRoute struct {
route []loadcontroller.ServerInfo
values []container.SizeEstimation
}
type loadWriter struct {
router *Router
route []loadcontroller.ServerInfo
routeMtx sync.RWMutex
mRoute map[routeKey]*valuesRoute
mServers map[string]loadcontroller.Writer
}
func (w *loadWriter) Put(a container.SizeEstimation) error {
w.routeMtx.Lock()
defer w.routeMtx.Unlock()
key := routeKey{
epoch: a.Epoch(),
cid: a.Container().EncodeToString(),
}
routeValues, ok := w.mRoute[key]
if !ok {
route, err := w.router.routeBuilder.NextStage(a, w.route)
if err != nil {
return err
} else if len(route) == 0 {
route = []loadcontroller.ServerInfo{nil}
}
routeValues = &valuesRoute{
route: route,
values: []container.SizeEstimation{a},
}
w.mRoute[key] = routeValues
}
for _, remoteInfo := range routeValues.route {
var key string
if remoteInfo != nil {
key = hex.EncodeToString(remoteInfo.PublicKey())
}
remoteWriter, ok := w.mServers[key]
if !ok {
provider, err := w.router.remoteProvider.InitRemote(remoteInfo)
if err != nil {
w.router.log.Debug(logs.RouteCouldNotInitializeWriterProvider,
zap.String("error", err.Error()),
)
continue // best effort
}
remoteWriter, err = provider.InitWriter(w.route)
if err != nil {
w.router.log.Debug(logs.RouteCouldNotInitializeWriter,
zap.String("error", err.Error()),
)
continue // best effort
}
w.mServers[key] = remoteWriter
}
err := remoteWriter.Put(a)
if err != nil {
w.router.log.Debug(logs.RouteCouldNotPutTheValue,
zap.String("error", err.Error()),
)
}
// continue best effort
}
return nil
}
func (w *loadWriter) Close(ctx context.Context) error {
for key, wRemote := range w.mServers {
err := wRemote.Close(ctx)
if err != nil {
w.router.log.Debug(logs.RouteCouldNotCloseRemoteServerWriter,
zap.String("key", key),
zap.String("error", err.Error()),
)
}
}
return nil
}