seaweedfs/weed/command/filer.go
2018-01-15 20:33:12 -08:00

142 lines
4.9 KiB
Go

package command
import (
"net/http"
"os"
"strconv"
"time"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/server"
"github.com/chrislusf/seaweedfs/weed/util"
)
var (
f FilerOptions
)
type FilerOptions struct {
master *string
ip *string
port *int
publicPort *int
collection *string
defaultReplicaPlacement *string
dir *string
redirectOnRead *bool
disableDirListing *bool
confFile *string
maxMB *int
secretKey *string
cassandra_server *string
cassandra_keyspace *string
redis_server *string
redis_password *string
redis_database *int
}
func init() {
cmdFiler.Run = runFiler // break init cycle
f.master = cmdFiler.Flag.String("master", "localhost:9333", "master server location")
f.collection = cmdFiler.Flag.String("collection", "", "all data will be stored in this collection")
f.ip = cmdFiler.Flag.String("ip", "", "filer server http listen ip address")
f.port = cmdFiler.Flag.Int("port", 8888, "filer server http listen port")
f.publicPort = cmdFiler.Flag.Int("port.public", 0, "port opened to public")
f.dir = cmdFiler.Flag.String("dir", os.TempDir(), "directory to store meta data")
f.defaultReplicaPlacement = cmdFiler.Flag.String("defaultReplicaPlacement", "000", "default replication type if not specified")
f.redirectOnRead = cmdFiler.Flag.Bool("redirectOnRead", false, "whether proxy or redirect to volume server during file GET request")
f.disableDirListing = cmdFiler.Flag.Bool("disableDirListing", false, "turn off directory listing")
f.confFile = cmdFiler.Flag.String("confFile", "", "json encoded filer conf file")
f.maxMB = cmdFiler.Flag.Int("maxMB", 32, "split files larger than the limit")
f.cassandra_server = cmdFiler.Flag.String("cassandra.server", "", "host[:port] of the cassandra server")
f.cassandra_keyspace = cmdFiler.Flag.String("cassandra.keyspace", "seaweed", "keyspace of the cassandra server")
f.redis_server = cmdFiler.Flag.String("redis.server", "", "comma separated host:port[,host2:port2]* of the redis server, e.g., 127.0.0.1:6379")
f.redis_password = cmdFiler.Flag.String("redis.password", "", "password in clear text")
f.redis_database = cmdFiler.Flag.Int("redis.database", 0, "the database on the redis server")
f.secretKey = cmdFiler.Flag.String("secure.secret", "", "secret to encrypt Json Web Token(JWT)")
}
var cmdFiler = &Command{
UsageLine: "filer -port=8888 -dir=/tmp -master=<ip:port>",
Short: "start a file server that points to a master server",
Long: `start a file server which accepts REST operation for any files.
//create or overwrite the file, the directories /path/to will be automatically created
POST /path/to/file
//get the file content
GET /path/to/file
//create or overwrite the file, the filename in the multipart request will be used
POST /path/to/
//return a json format subdirectory and files listing
GET /path/to/
Current <fullpath~fileid> mapping metadata store is local embedded leveldb.
It should be highly scalable to hundreds of millions of files on a modest machine.
Future we will ensure it can avoid of being SPOF.
`,
}
func runFiler(cmd *Command, args []string) bool {
if err := util.TestFolderWritable(*f.dir); err != nil {
glog.Fatalf("Check Meta Folder (-dir) Writable %s : %s", *f.dir, err)
}
f.start()
return true
}
func (fo *FilerOptions) start() {
defaultMux := http.NewServeMux()
publicVolumeMux := defaultMux
if *fo.publicPort != 0 {
publicVolumeMux = http.NewServeMux()
}
_, nfs_err := weed_server.NewFilerServer(defaultMux, publicVolumeMux,
*fo.ip, *fo.port, *fo.master, *fo.dir, *fo.collection,
*fo.defaultReplicaPlacement, *fo.redirectOnRead, *fo.disableDirListing,
*fo.confFile,
*fo.maxMB,
*fo.secretKey,
*fo.cassandra_server, *fo.cassandra_keyspace,
*fo.redis_server, *fo.redis_password, *fo.redis_database,
)
if nfs_err != nil {
glog.Fatalf("Filer startup error: %v", nfs_err)
}
if *fo.publicPort != 0 {
publicListeningAddress := *fo.ip + ":" + strconv.Itoa(*fo.publicPort)
glog.V(0).Infoln("Start Seaweed filer server", util.VERSION, "public at", publicListeningAddress)
publicListener, e := util.NewListener(publicListeningAddress, 0)
if e != nil {
glog.Fatalf("Filer server public listener error on port %d:%v", *fo.publicPort, e)
}
go func() {
if e := http.Serve(publicListener, publicVolumeMux); e != nil {
glog.Fatalf("Volume server fail to serve public: %v", e)
}
}()
}
glog.V(0).Infoln("Start Seaweed Filer", util.VERSION, "at port", strconv.Itoa(*fo.port))
filerListener, e := util.NewListener(
":"+strconv.Itoa(*fo.port),
time.Duration(10)*time.Second,
)
if e != nil {
glog.Fatalf("Filer listener error: %v", e)
}
if e := http.Serve(filerListener, defaultMux); e != nil {
glog.Fatalf("Filer Fail to serve: %v", e)
}
}