seaweedfs/weed/filesys/wfs_filer_client.go
chrislu 9f9ef1340c use streaming mode for long poll grpc calls
streaming mode would create separate grpc connections for each call.
this is to ensure the long poll connections are properly closed.
2021-12-26 00:15:03 -08:00

52 lines
1.2 KiB
Go

package filesys
import (
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/util"
"google.golang.org/grpc"
"github.com/chrislusf/seaweedfs/weed/pb"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
)
var _ = filer_pb.FilerClient(&WFS{})
func (wfs *WFS) WithFilerClient(streamingMode bool, fn func(filer_pb.SeaweedFilerClient) error) (err error) {
return util.Retry("filer grpc", func() error {
i := wfs.option.filerIndex
n := len(wfs.option.FilerAddresses)
for x := 0; x < n; x++ {
filerGrpcAddress := wfs.option.FilerAddresses[i].ToGrpcAddress()
err = pb.WithGrpcClient(streamingMode, func(grpcConnection *grpc.ClientConn) error {
client := filer_pb.NewSeaweedFilerClient(grpcConnection)
return fn(client)
}, filerGrpcAddress, wfs.option.GrpcDialOption)
if err != nil {
glog.V(0).Infof("WithFilerClient %d %v: %v", x, filerGrpcAddress, err)
} else {
wfs.option.filerIndex = i
return nil
}
i++
if i >= n {
i = 0
}
}
return err
})
}
func (wfs *WFS) AdjustedUrl(location *filer_pb.Location) string {
if wfs.option.VolumeServerAccess == "publicUrl" {
return location.PublicUrl
}
return location.Url
}