seaweedfs/weed/server/filer_server.go

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package weed_server
import (
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"context"
"fmt"
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"net/http"
"os"
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"sync"
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"time"
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"github.com/chrislusf/seaweedfs/weed/stats"
"google.golang.org/grpc"
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"github.com/chrislusf/seaweedfs/weed/util/grace"
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"github.com/chrislusf/seaweedfs/weed/operation"
"github.com/chrislusf/seaweedfs/weed/pb"
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"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
"github.com/chrislusf/seaweedfs/weed/util"
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"github.com/chrislusf/seaweedfs/weed/filer"
_ "github.com/chrislusf/seaweedfs/weed/filer/cassandra"
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_ "github.com/chrislusf/seaweedfs/weed/filer/elastic/v7"
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_ "github.com/chrislusf/seaweedfs/weed/filer/etcd"
_ "github.com/chrislusf/seaweedfs/weed/filer/leveldb"
_ "github.com/chrislusf/seaweedfs/weed/filer/leveldb2"
_ "github.com/chrislusf/seaweedfs/weed/filer/mongodb"
_ "github.com/chrislusf/seaweedfs/weed/filer/mysql"
_ "github.com/chrislusf/seaweedfs/weed/filer/postgres"
_ "github.com/chrislusf/seaweedfs/weed/filer/redis"
_ "github.com/chrislusf/seaweedfs/weed/filer/redis2"
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"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/notification"
_ "github.com/chrislusf/seaweedfs/weed/notification/aws_sqs"
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_ "github.com/chrislusf/seaweedfs/weed/notification/gocdk_pub_sub"
_ "github.com/chrislusf/seaweedfs/weed/notification/google_pub_sub"
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_ "github.com/chrislusf/seaweedfs/weed/notification/kafka"
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_ "github.com/chrislusf/seaweedfs/weed/notification/log"
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"github.com/chrislusf/seaweedfs/weed/security"
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)
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type FilerOption struct {
Masters []string
Collection string
DefaultReplication string
DisableDirListing bool
MaxMB int
DirListingLimit int
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DataCenter string
Rack string
DefaultLevelDbDir string
DisableHttp bool
Host string
Port uint32
recursiveDelete bool
Cipher bool
Filers []string
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}
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type FilerServer struct {
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option *FilerOption
secret security.SigningKey
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filer *filer.Filer
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grpcDialOption grpc.DialOption
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// metrics read from the master
metricsAddress string
metricsIntervalSec int
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// notifying clients
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listenersLock sync.Mutex
listenersCond *sync.Cond
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brokers map[string]map[string]bool
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brokersLock sync.Mutex
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}
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func NewFilerServer(defaultMux, readonlyMux *http.ServeMux, option *FilerOption) (fs *FilerServer, err error) {
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fs = &FilerServer{
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option: option,
grpcDialOption: security.LoadClientTLS(util.GetViper(), "grpc.filer"),
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brokers: make(map[string]map[string]bool),
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}
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fs.listenersCond = sync.NewCond(&fs.listenersLock)
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if len(option.Masters) == 0 {
glog.Fatal("master list is required!")
}
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fs.filer = filer.NewFiler(option.Masters, fs.grpcDialOption, option.Host, option.Port, option.Collection, option.DefaultReplication, option.DataCenter, func() {
fs.listenersCond.Broadcast()
})
fs.filer.Cipher = option.Cipher
fs.checkWithMaster()
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go stats.LoopPushingMetric("filer", stats.SourceName(fs.option.Port), fs.metricsAddress, fs.metricsIntervalSec)
go fs.filer.KeepConnectedToMaster()
v := util.GetViper()
if !util.LoadConfiguration("filer", false) {
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v.Set("leveldb2.enabled", true)
v.Set("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)
}
util.LoadConfiguration("notification", false)
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fs.option.recursiveDelete = v.GetBool("filer.options.recursive_delete")
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v.SetDefault("filer.options.buckets_folder", "/buckets")
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fs.filer.DirBucketsPath = v.GetString("filer.options.buckets_folder")
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fs.filer.FsyncBuckets = v.GetStringSlice("filer.options.buckets_fsync")
fs.filer.LoadConfiguration(v)
notification.LoadConfiguration(v, "notification.")
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handleStaticResources(defaultMux)
if !option.DisableHttp {
defaultMux.HandleFunc("/", fs.filerHandler)
}
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if defaultMux != readonlyMux {
readonlyMux.HandleFunc("/", fs.readonlyFilerHandler)
}
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fs.filer.AggregateFromPeers(fmt.Sprintf("%s:%d", option.Host, option.Port), option.Filers)
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fs.filer.LoadBuckets()
grace.OnInterrupt(func() {
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fs.filer.Shutdown()
})
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return fs, nil
}
func (fs *FilerServer) checkWithMaster() {
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for _, master := range fs.option.Masters {
_, err := pb.ParseFilerGrpcAddress(master)
if err != nil {
glog.Fatalf("invalid master address %s: %v", master, err)
}
}
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isConnected := false
for !isConnected {
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for _, master := range fs.option.Masters {
readErr := operation.WithMasterServerClient(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)
if fs.option.DefaultReplication == "" {
fs.option.DefaultReplication = resp.DefaultReplication
}
return nil
})
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if readErr == nil {
isConnected = true
} else {
time.Sleep(7 * time.Second)
}
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}
}
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}