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package weed_server
import (
"context"
"fmt"
"net/http"
"os"
"strings"
"sync"
"sync/atomic"
"time"
"github.com/seaweedfs/seaweedfs/weed/stats"
"google.golang.org/grpc"
"github.com/seaweedfs/seaweedfs/weed/util/grace"
"github.com/seaweedfs/seaweedfs/weed/operation"
"github.com/seaweedfs/seaweedfs/weed/pb"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
"github.com/seaweedfs/seaweedfs/weed/pb/master_pb"
"github.com/seaweedfs/seaweedfs/weed/util"
"github.com/seaweedfs/seaweedfs/weed/filer"
_ "github.com/seaweedfs/seaweedfs/weed/filer/arangodb"
_ "github.com/seaweedfs/seaweedfs/weed/filer/cassandra"
_ "github.com/seaweedfs/seaweedfs/weed/filer/elastic/v7"
_ "github.com/seaweedfs/seaweedfs/weed/filer/etcd"
_ "github.com/seaweedfs/seaweedfs/weed/filer/hbase"
_ "github.com/seaweedfs/seaweedfs/weed/filer/leveldb"
_ "github.com/seaweedfs/seaweedfs/weed/filer/leveldb2"
_ "github.com/seaweedfs/seaweedfs/weed/filer/leveldb3"
_ "github.com/seaweedfs/seaweedfs/weed/filer/mongodb"
_ "github.com/seaweedfs/seaweedfs/weed/filer/mysql"
_ "github.com/seaweedfs/seaweedfs/weed/filer/mysql2"
_ "github.com/seaweedfs/seaweedfs/weed/filer/postgres"
_ "github.com/seaweedfs/seaweedfs/weed/filer/postgres2"
_ "github.com/seaweedfs/seaweedfs/weed/filer/redis"
_ "github.com/seaweedfs/seaweedfs/weed/filer/redis2"
_ "github.com/seaweedfs/seaweedfs/weed/filer/redis3"
_ "github.com/seaweedfs/seaweedfs/weed/filer/sqlite"
_ "github.com/seaweedfs/seaweedfs/weed/filer/tarantool"
_ "github.com/seaweedfs/seaweedfs/weed/filer/ydb"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/notification"
_ "github.com/seaweedfs/seaweedfs/weed/notification/aws_sqs"
_ "github.com/seaweedfs/seaweedfs/weed/notification/gocdk_pub_sub"
_ "github.com/seaweedfs/seaweedfs/weed/notification/google_pub_sub"
_ "github.com/seaweedfs/seaweedfs/weed/notification/kafka"
_ "github.com/seaweedfs/seaweedfs/weed/notification/log"
"github.com/seaweedfs/seaweedfs/weed/security"
)
type FilerOption struct {
Masters *pb.ServerDiscovery
FilerGroup string
Collection string
DefaultReplication string
DisableDirListing bool
MaxMB int
DirListingLimit int
DataCenter string
Rack string
DataNode string
DefaultLevelDbDir string
DisableHttp bool
Host pb.ServerAddress
recursiveDelete bool
Cipher bool
SaveToFilerLimit int64
ConcurrentUploadLimit int64
ShowUIDirectoryDelete bool
DownloadMaxBytesPs int64
DiskType string
AllowedOrigins []string
ExposeDirectoryData bool
}
type FilerServer struct {
inFlightDataSize int64
listenersWaits int64
// notifying clients
listenersLock sync.Mutex
listenersCond *sync.Cond
inFlightDataLimitCond *sync.Cond
filer_pb.UnimplementedSeaweedFilerServer
option *FilerOption
secret security.SigningKey
filer *filer.Filer
filerGuard *security.Guard
volumeGuard *security.Guard
grpcDialOption grpc.DialOption
// metrics read from the master
metricsAddress string
metricsIntervalSec int
// track known metadata listeners
knownListenersLock sync.Mutex
knownListeners map[int32]int32
}
func NewFilerServer(defaultMux, readonlyMux *http.ServeMux, option *FilerOption) (fs *FilerServer, err error) {
v := util.GetViper()
signingKey := v.GetString("jwt.filer_signing.key")
v.SetDefault("jwt.filer_signing.expires_after_seconds", 10)
expiresAfterSec := v.GetInt("jwt.filer_signing.expires_after_seconds")
readSigningKey := v.GetString("jwt.filer_signing.read.key")
v.SetDefault("jwt.filer_signing.read.expires_after_seconds", 60)
readExpiresAfterSec := v.GetInt("jwt.filer_signing.read.expires_after_seconds")
volumeSigningKey := v.GetString("jwt.signing.key")
v.SetDefault("jwt.signing.expires_after_seconds", 10)
volumeExpiresAfterSec := v.GetInt("jwt.signing.expires_after_seconds")
volumeReadSigningKey := v.GetString("jwt.signing.read.key")
v.SetDefault("jwt.signing.read.expires_after_seconds", 60)
volumeReadExpiresAfterSec := v.GetInt("jwt.signing.read.expires_after_seconds")
v.SetDefault("cors.allowed_origins.values", "*")
allowedOrigins := v.GetString("cors.allowed_origins.values")
domains := strings.Split(allowedOrigins, ",")
option.AllowedOrigins = domains
v.SetDefault("filer.expose_directory_metadata.enabled", true)
returnDirMetadata := v.GetBool("filer.expose_directory_metadata.enabled")
option.ExposeDirectoryData = returnDirMetadata
fs = &FilerServer{
option: option,
grpcDialOption: security.LoadClientTLS(util.GetViper(), "grpc.filer"),
knownListeners: make(map[int32]int32),
inFlightDataLimitCond: sync.NewCond(new(sync.Mutex)),
}
fs.listenersCond = sync.NewCond(&fs.listenersLock)
option.Masters.RefreshBySrvIfAvailable()
if len(option.Masters.GetInstances()) == 0 {
glog.Fatal("master list is required!")
}
v.SetDefault("filer.options.max_file_name_length", 255)
maxFilenameLength := v.GetUint32("filer.options.max_file_name_length")
fs.filer = filer.NewFiler(*option.Masters, fs.grpcDialOption, option.Host, option.FilerGroup, option.Collection, option.DefaultReplication, option.DataCenter, maxFilenameLength, func() {
if atomic.LoadInt64(&fs.listenersWaits) > 0 {
fs.listenersCond.Broadcast()
}
})
fs.filer.Cipher = option.Cipher
whiteList := util.StringSplit(v.GetString("guard.white_list"), ",")
fs.filerGuard = security.NewGuard(whiteList, signingKey, expiresAfterSec, readSigningKey, readExpiresAfterSec)
fs.volumeGuard = security.NewGuard([]string{}, volumeSigningKey, volumeExpiresAfterSec, volumeReadSigningKey, volumeReadExpiresAfterSec)
fs.checkWithMaster()
go stats.LoopPushingMetric("filer", string(fs.option.Host), fs.metricsAddress, fs.metricsIntervalSec)
go fs.filer.KeepMasterClientConnected(context.Background())
if !util.LoadConfiguration("filer", false) {
v.SetDefault("leveldb2.enabled", true)
v.SetDefault("leveldb2.dir", option.DefaultLevelDbDir)
_, err := os.Stat(option.DefaultLevelDbDir)
if os.IsNotExist(err) {
os.MkdirAll(option.DefaultLevelDbDir, 0755)
}
glog.V(0).Infof("default to create filer store dir in %s", option.DefaultLevelDbDir)
} else {
glog.Warningf("skipping default store dir in %s", option.DefaultLevelDbDir)
}
util.LoadConfiguration("notification", false)
fs.option.recursiveDelete = v.GetBool("filer.options.recursive_delete")
v.SetDefault("filer.options.buckets_folder", "/buckets")
fs.filer.DirBucketsPath = v.GetString("filer.options.buckets_folder")
// TODO deprecated, will be removed after 2020-12-31
// replaced by https://github.com/seaweedfs/seaweedfs/wiki/Path-Specific-Configuration
// fs.filer.FsyncBuckets = v.GetStringSlice("filer.options.buckets_fsync")
isFresh := fs.filer.LoadConfiguration(v)
notification.LoadConfiguration(v, "notification.")
handleStaticResources(defaultMux)
if !option.DisableHttp {
defaultMux.HandleFunc("/healthz", fs.filerHealthzHandler)
defaultMux.HandleFunc("/", fs.filerGuard.WhiteList(fs.filerHandler))
}
if defaultMux != readonlyMux {
handleStaticResources(readonlyMux)
readonlyMux.HandleFunc("/healthz", fs.filerHealthzHandler)
readonlyMux.HandleFunc("/", fs.filerGuard.WhiteList(fs.readonlyFilerHandler))
}
existingNodes := fs.filer.ListExistingPeerUpdates(context.Background())
startFromTime := time.Now().Add(-filer.LogFlushInterval)
if isFresh {
glog.V(0).Infof("%s bootstrap from peers %+v", option.Host, existingNodes)
if err := fs.filer.MaybeBootstrapFromOnePeer(option.Host, existingNodes, startFromTime); err != nil {
glog.Fatalf("%s bootstrap from %+v: %v", option.Host, existingNodes, err)
}
}
fs.filer.AggregateFromPeers(option.Host, existingNodes, startFromTime)
fs.filer.LoadFilerConf()
fs.filer.LoadRemoteStorageConfAndMapping()
grace.OnReload(fs.Reload)
grace.OnInterrupt(func() {
fs.filer.Shutdown()
})
fs.filer.Dlm.LockRing.SetTakeSnapshotCallback(fs.OnDlmChangeSnapshot)
return fs, nil
}
func (fs *FilerServer) checkWithMaster() {
isConnected := false
for !isConnected {
fs.option.Masters.RefreshBySrvIfAvailable()
for _, master := range fs.option.Masters.GetInstances() {
readErr := operation.WithMasterServerClient(false, master, fs.grpcDialOption, func(masterClient master_pb.SeaweedClient) error {
resp, err := masterClient.GetMasterConfiguration(context.Background(), &master_pb.GetMasterConfigurationRequest{})
if err != nil {
return fmt.Errorf("get master %s configuration: %v", master, err)
}
fs.metricsAddress, fs.metricsIntervalSec = resp.MetricsAddress, int(resp.MetricsIntervalSeconds)
return nil
})
if readErr == nil {
isConnected = true
} else {
time.Sleep(7 * time.Second)
}
}
}
}
func (fs *FilerServer) Reload() {
glog.V(0).Infoln("Reload filer server...")
util.LoadConfiguration("security", false)
v := util.GetViper()
fs.filerGuard.UpdateWhiteList(util.StringSplit(v.GetString("guard.white_list"), ","))
}
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