This commit is contained in:
eson 2023-07-28 19:04:21 +08:00
commit 20085e6d9a
13 changed files with 862 additions and 0 deletions

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.gitignore vendored Normal file
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debug_test*
__debug_*
fusenrender

52
config.go Normal file
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package fusenrender
import (
"fmt"
"io/fs"
"os"
"path/filepath"
"strings"
"gopkg.in/yaml.v3"
)
type ConfigServer struct {
ServerID string `yaml:"serverid"`
Host string `yaml:"host"`
Port int `yaml:"port"`
}
func (cfg *ConfigServer) Address() string {
return fmt.Sprintf("%s:%d", cfg.Host, cfg.Port)
}
func (cfg *ConfigServer) AddressWith(p int) string {
return fmt.Sprintf("%s:%d", cfg.Host, p)
}
func LoadConfig(etcpath string) (*ConfigServer, error) {
f, err := os.Open(etcpath)
if err != nil {
return nil, err
}
cfg := ConfigServer{}
err = yaml.NewDecoder(f).Decode(&cfg)
return &cfg, err
}
func LoadAllConfig(etcpath string) (result []*ConfigServer) {
filepath.WalkDir(etcpath, func(path string, d fs.DirEntry, err error) error {
if strings.HasSuffix(d.Name(), ".yaml") {
cfg, err := LoadConfig(path)
if err != nil {
panic(err)
}
result = append(result, cfg)
}
return nil
})
return result
}

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etc/etc_a.yaml Normal file
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serverid: "a"
host: "localhost"
port: 5050

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etc/etc_b.yaml Normal file
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serverid: "b"
host: "localhost"
port: 5051

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etc/etc_c.yaml Normal file
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serverid: "c"
host: "localhost"
port: 5052

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fsm.go Normal file
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package fusenrender
import (
"encoding/json"
"fmt"
"io"
"log"
"sync"
"time"
"github.com/dgraph-io/badger/v3"
"github.com/hashicorp/raft"
)
type FsmQueue struct {
mu sync.Mutex
queue *Queue
ra *raft.Raft
}
func NewQueueFSM(datapath string) *FsmQueue {
q, err := NewQueue(datapath)
if err != nil {
panic(err)
}
return &FsmQueue{
queue: q,
}
}
const (
Enqueue raft.LogType = 20
Dequeue raft.LogType = 21
)
func (q *FsmQueue) Put(item *QueueItem) error {
data, err := item.Encode()
if err != nil {
return err
}
return q.PutJsonString(data)
}
func (q *FsmQueue) PutJsonString(item []byte) error {
future := q.ra.ApplyLog(raft.Log{
Type: Enqueue,
Data: item,
}, time.Second*15)
if future.Error() != nil {
return future.Error()
}
resp := future.Response()
if resp == nil {
return nil
}
return resp.(error)
}
func (q *FsmQueue) Pop(group string) (*QueueItem, error) {
ierr := q.ra.ApplyLog(raft.Log{
Type: Dequeue,
Data: []byte(group),
}, time.Second*15)
if ierr.Error() != nil {
return nil, ierr.Error()
}
switch v := ierr.Response().(type) {
case error:
return nil, v
case *QueueItem:
return v, nil
default:
return nil, fmt.Errorf("unknown %v", v)
}
}
func (q *FsmQueue) Apply(log *raft.Log) interface{} {
q.mu.Lock()
defer q.mu.Unlock()
task := &ApplyTask{}
if err := json.Unmarshal(log.Data, task); err != nil {
return err
}
switch task.Name {
case "enqueue":
return q.queue.Enqueue(task.Data.(*QueueItem))
case "dequeue":
// log.Data 传入group
item, err := q.queue.Dequeue(string(task.Data.(string)))
if err != nil {
return err
}
return item
default:
return fmt.Errorf("unknown type: %v", log.Type)
}
}
type QueueSnapshot struct {
Items []*QueueItem
}
// Persist writes the snapshot to the provided sink.
func (snapshot *QueueSnapshot) Persist(sink raft.SnapshotSink) error {
// The example has been simplified. In a production environment, you would
// need to handle this operation with more care.
return nil
}
// Release is invoked when the Raft instance is finished with the snapshot.
func (snapshot *QueueSnapshot) Release() {
// Normally you would put any cleanup here.
}
// Snapshot 返回队列快照
func (fsm *FsmQueue) Snapshot() (raft.FSMSnapshot, error) {
var items []*QueueItem
// 使用 Badger 读取所有队列项
fsm.queue.db.View(func(txn *badger.Txn) error {
opts := badger.DefaultIteratorOptions
opts.PrefetchValues = false // 只需要key
it := txn.NewIterator(opts)
defer it.Close()
for it.Rewind(); it.Valid(); it.Next() {
err := it.Item().Value(func(val []byte) error {
item := &QueueItem{}
err := json.Unmarshal(val, item)
if err != nil {
return err
}
items = append(items, item)
return nil
})
if err != nil {
log.Println(err)
}
}
return nil
})
snapshot := &QueueSnapshot{Items: items}
return snapshot, nil
}
// Restore 恢复队列状态
func (fsm *FsmQueue) Restore(rc io.ReadCloser) error {
snapshot := &QueueSnapshot{}
if err := json.NewDecoder(rc).Decode(snapshot); err != nil {
return err
}
// 用快照数据重建队列
fsm.queue.db.Update(func(txn *badger.Txn) error {
for _, item := range snapshot.Items {
val, err := item.Encode()
if err != nil {
log.Println(err)
continue
}
if err := txn.Set(fsm.queue.GetKey(item), val); err != nil {
return err
}
}
return nil
})
return nil
}
func waitForCluster(ra *raft.Raft) {
ticker := time.NewTicker(500 * time.Millisecond)
defer ticker.Stop()
for range ticker.C {
state := ra.State()
if state == raft.Leader || state == raft.Follower {
log.Println("Raft cluster is running")
return
} else {
log.Println("Still waiting for the cluster to start...")
}
}
}

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go.mod Normal file
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module fusenrender
go 1.20
require (
github.com/dgraph-io/badger/v3 v3.2103.5
github.com/hashicorp/raft v1.5.0
)
require (
github.com/armon/go-metrics v0.4.1 // indirect
github.com/cespare/xxhash v1.1.0 // indirect
github.com/cespare/xxhash/v2 v2.1.2 // indirect
github.com/dgraph-io/ristretto v0.1.1 // indirect
github.com/dustin/go-humanize v1.0.0 // indirect
github.com/fatih/color v1.13.0 // indirect
github.com/gogo/protobuf v1.3.2 // indirect
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b // indirect
github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6 // indirect
github.com/golang/protobuf v1.3.2 // indirect
github.com/golang/snappy v0.0.3 // indirect
github.com/google/flatbuffers v1.12.1 // indirect
github.com/hashicorp/go-hclog v1.5.0 // indirect
github.com/hashicorp/go-immutable-radix v1.0.0 // indirect
github.com/hashicorp/go-msgpack v0.5.5 // indirect
github.com/hashicorp/golang-lru v0.5.0 // indirect
github.com/klauspost/compress v1.12.3 // indirect
github.com/mattn/go-colorable v0.1.12 // indirect
github.com/mattn/go-isatty v0.0.14 // indirect
github.com/pkg/errors v0.9.1 // indirect
go.opencensus.io v0.22.5 // indirect
golang.org/x/net v0.7.0 // indirect
golang.org/x/sys v0.5.0 // indirect
gopkg.in/yaml.v3 v3.0.1 // indirect
)

240
go.sum Normal file
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@ -0,0 +1,240 @@
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/DataDog/datadog-go v3.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3tL4fMGNddJ+vMq1mwgfaqoQ=
github.com/OneOfOne/xxhash v1.2.2 h1:KMrpdQIwFcEqXDklaen+P1axHaj9BSKzvpUUfnHldSE=
github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
github.com/armon/go-metrics v0.4.1 h1:hR91U9KYmb6bLBYLQjyM+3j+rcd/UhE+G78SFnF8gJA=
github.com/armon/go-metrics v0.4.1/go.mod h1:E6amYzXo6aW1tqzoZGT755KkbgrJsSdpwZ+3JqfkOG4=
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE=
github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/circonus-labs/circonus-gometrics v2.3.1+incompatible/go.mod h1:nmEj6Dob7S7YxXgwXpfOuvO54S+tGdZdw9fuRZt25Ag=
github.com/circonus-labs/circonusllhist v0.1.3/go.mod h1:kMXHVDlOchFAehlya5ePtbp5jckzBHf4XRpQvBOLI+I=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dgraph-io/badger/v3 v3.2103.5 h1:ylPa6qzbjYRQMU6jokoj4wzcaweHylt//CH0AKt0akg=
github.com/dgraph-io/badger/v3 v3.2103.5/go.mod h1:4MPiseMeDQ3FNCYwRbbcBOGJLf5jsE0PPFzRiKjtcdw=
github.com/dgraph-io/ristretto v0.1.1 h1:6CWw5tJNgpegArSHpNHJKldNeq03FQCwYvfMVWajOK8=
github.com/dgraph-io/ristretto v0.1.1/go.mod h1:S1GPSBCYCIhmVNfcth17y2zZtQT6wzkzgwUve0VDWWA=
github.com/dgryski/go-farm v0.0.0-20190423205320-6a90982ecee2 h1:tdlZCpZ/P9DhczCTSixgIKmwPv6+wP5DGjqLYw5SUiA=
github.com/dgryski/go-farm v0.0.0-20190423205320-6a90982ecee2/go.mod h1:SqUrOPUnsFjfmXRMNPybcSiG0BgUW2AuFH8PAnS2iTw=
github.com/dustin/go-humanize v1.0.0 h1:VSnTsYCnlFHaM2/igO1h6X3HA71jcobQuxemgkq4zYo=
github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
github.com/fatih/color v1.13.0 h1:8LOYc1KYPPmyKMuN8QV2DNRWNbLo6LZ0iLs8+mlH53w=
github.com/fatih/color v1.13.0/go.mod h1:kLAiJbzzSOZDVNGyDpeOxJ47H46qBXwg5ILebYFFOfk=
github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6 h1:ZgQEtGgCBiWRM39fZuwSd1LwSqqSW0hOdXCYYDX0R3I=
github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.2 h1:6nsPYzhq5kReh6QImI3k5qWzO4PEbvbIW2cwSfR/6xs=
github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/snappy v0.0.3 h1:fHPg5GQYlCeLIPB9BZqMVR5nR9A+IM5zcgeTdjMYmLA=
github.com/golang/snappy v0.0.3/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
github.com/google/flatbuffers v1.12.1 h1:MVlul7pQNoDzWRLTw5imwYsl+usrS1TXG2H4jg6ImGw=
github.com/google/flatbuffers v1.12.1/go.mod h1:1AeVuKshWv4vARoZatz6mlQ0JxURH0Kv5+zNeJKJCa8=
github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
github.com/hashicorp/go-cleanhttp v0.5.0/go.mod h1:JpRdi6/HCYpAwUzNwuwqhbovhLtngrth3wmdIIUrZ80=
github.com/hashicorp/go-hclog v1.5.0 h1:bI2ocEMgcVlz55Oj1xZNBsVi900c7II+fWDyV9o+13c=
github.com/hashicorp/go-hclog v1.5.0/go.mod h1:W4Qnvbt70Wk/zYJryRzDRU/4r0kIg0PVHBcfoyhpF5M=
github.com/hashicorp/go-immutable-radix v1.0.0 h1:AKDB1HM5PWEA7i4nhcpwOrO2byshxBjXVn/J/3+z5/0=
github.com/hashicorp/go-immutable-radix v1.0.0/go.mod h1:0y9vanUI8NX6FsYoO3zeMjhV/C5i9g4Q3DwcSNZ4P60=
github.com/hashicorp/go-msgpack v0.5.5 h1:i9R9JSrqIz0QVLz3sz+i3YJdT7TTSLcfLLzJi9aZTuI=
github.com/hashicorp/go-msgpack v0.5.5/go.mod h1:ahLV/dePpqEmjfWmKiqvPkv/twdG7iPBM1vqhUKIvfM=
github.com/hashicorp/go-retryablehttp v0.5.3/go.mod h1:9B5zBasrRhHXnJnui7y6sL7es7NDiJgTc6Er0maI1Xs=
github.com/hashicorp/go-uuid v1.0.0 h1:RS8zrF7PhGwyNPOtxSClXXj9HA8feRnJzgnI1RJCSnM=
github.com/hashicorp/go-uuid v1.0.0/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro=
github.com/hashicorp/golang-lru v0.5.0 h1:CL2msUPvZTLb5O648aiLNJw3hnBxN2+1Jq8rCOH9wdo=
github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
github.com/hashicorp/raft v1.5.0 h1:uNs9EfJ4FwiArZRxxfd/dQ5d33nV31/CdCHArH89hT8=
github.com/hashicorp/raft v1.5.0/go.mod h1:pKHB2mf/Y25u3AHNSXVRv+yT+WAnmeTX0BwVppVQV+M=
github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
github.com/klauspost/compress v1.12.3 h1:G5AfA94pHPysR56qqrkO2pxEexdDzrpFJ6yt/VqWxVU=
github.com/klauspost/compress v1.12.3/go.mod h1:8dP1Hq4DHOhN9w426knH3Rhby4rFm6D8eO+e+Dq5Gzg=
github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
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golang.org/x/net v0.7.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
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golang.org/x/sys v0.5.0 h1:MUK/U/4lj1t1oPg0HfuXDN/Z1wv31ZJ/YcPiGccS4DU=
golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
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golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
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gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
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honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

88
main.go Normal file
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package fusenrender
import (
"fmt"
"log"
"net"
"os"
"time"
"github.com/hashicorp/raft"
)
func main() {
}
func StartNode(ServerID string, RaftBind string, serverconfigs []*ConfigServer) *FsmQueue {
fsm := NewQueueFSM(fmt.Sprintf("/tmp/fusenrender/%s", ServerID))
var retainSnapshotCount = 2
// var ServerID string = "fs1"
// var RaftBind string = "localhost:5500"
var RaftDir string = fmt.Sprintf("/tmp/raftdir/%s", ServerID)
// Setup Raft configuration.
config := raft.DefaultConfig()
config.LocalID = raft.ServerID(ServerID)
// Setup Raft communication.
addr, err := net.ResolveTCPAddr("tcp", RaftBind)
if err != nil {
panic(err)
}
transport, err := raft.NewTCPTransport(RaftBind, addr, 3, 30*time.Second, os.Stderr)
if err != nil {
panic(err)
}
// Create the snapshot store. This allows the Raft to truncate the log.
snapshots, err := raft.NewFileSnapshotStore(RaftDir, retainSnapshotCount, os.Stderr)
if err != nil {
panic(fmt.Errorf("file snapshot store: %s", err))
}
// Create the log store and stable store.
logStore := raft.NewInmemStore()
stableStore := raft.NewInmemStore()
// Create the Raft system.
fsm.ra, err = raft.NewRaft(config, fsm, logStore, stableStore, snapshots, transport)
if err != nil {
panic(err)
}
var dup map[string]bool = make(map[string]bool)
var rserver []raft.Server = []raft.Server{
{
Suffrage: raft.Voter,
ID: config.LocalID,
Address: transport.LocalAddr(),
},
}
dup[string(config.LocalID)] = true
for _, cfg := range serverconfigs {
if _, ok := dup[cfg.ServerID]; !ok {
dup[cfg.ServerID] = true
rserver = append(rserver, raft.Server{
Suffrage: raft.Voter,
ID: raft.ServerID(cfg.ServerID),
Address: raft.ServerAddress(cfg.Address()),
})
}
}
configuration := raft.Configuration{
Servers: rserver,
}
fu := fsm.ra.BootstrapCluster(configuration)
if err := fu.Error(); err != nil {
log.Println(err)
}
waitForCluster(fsm.ra)
return fsm
}

7
main_test.go Normal file
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package fusenrender
import "testing"
func TestMain(t *testing.T) {
main()
}

99
queue.go Normal file
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@ -0,0 +1,99 @@
package fusenrender
import (
"encoding/json"
"fmt"
"log"
"time"
"github.com/dgraph-io/badger/v3"
)
type ApplyTask struct {
Name string `json:"name"`
Data any `json:"data"`
}
type QueueItem struct {
Group string `json:"group"` // 组名
Priority uint32 `json:"priority"` // 处理的优先级
CreateAt time.Time `json:"create_at"` // 创建时间 统一utc
Data any `json:"data"` // 操作的数据结构
}
func (item *QueueItem) Encode() ([]byte, error) {
val, err := json.Marshal(item)
if err != nil {
return nil, err
}
return val, nil
}
type Queue struct {
db *badger.DB
}
func NewQueue(datapath string) (*Queue, error) {
opts := badger.DefaultOptions(datapath)
db, err := badger.Open(opts)
if err != nil {
return nil, err
}
return &Queue{
db: db,
}, nil
}
func (q *Queue) GetKey(item *QueueItem) []byte {
return []byte(fmt.Sprintf("%s_%d_%d", item.Group, -item.Priority, item.CreateAt.UTC().Unix()))
}
func (q *Queue) Enqueue(item *QueueItem) error {
// Badger存储
val, err := json.Marshal(item)
if err != nil {
return err
}
err = q.db.Update(func(txn *badger.Txn) error {
return txn.Set([]byte(q.GetKey(item)), val)
})
return err
}
func (q *Queue) Dequeue(group string) (*QueueItem, error) {
var item *QueueItem
prefix := []byte(fmt.Sprintf("%s_", group))
err := q.db.Update(func(txn *badger.Txn) error {
it := txn.NewIterator(badger.DefaultIteratorOptions)
defer it.Close()
it.Seek(prefix)
if !it.ValidForPrefix(prefix) {
return nil
}
itemKey := it.Item().Key()
err := it.Item().Value(func(val []byte) error {
item := &QueueItem{}
return json.Unmarshal(val, item)
})
if err != nil {
log.Println(err)
}
return txn.Delete(itemKey)
})
return item, err
}

34
queue_test.go Normal file
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package fusenrender
import (
"log"
"testing"
"time"
)
func TestQueue(t *testing.T) {
q, err := NewQueue("/tmp/fusenrender")
if err != nil {
panic(err)
}
group := "fusen"
q.Enqueue(&QueueItem{
Group: group,
Priority: 1,
CreateAt: time.Now(),
Data: nil,
})
q.Enqueue(&QueueItem{
Group: group,
Priority: 2,
CreateAt: time.Now(),
Data: nil,
})
log.Println(q.Dequeue(group))
log.Println(q.Dequeue(group))
log.Println(q.Dequeue(group))
}

91
start_test.go Normal file
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package fusenrender_test
import (
"fusenrender"
"log"
"testing"
"time"
)
func TestStartNodeA(t *testing.T) {
svc, err := fusenrender.LoadConfig("etc/etc_a.yaml")
if err != nil {
panic(err)
}
item := &fusenrender.QueueItem{
Group: "test",
Priority: uint32(1),
CreateAt: time.Now(),
Data: "a",
}
a := fusenrender.StartNode(svc.ServerID, svc.Address(), fusenrender.LoadAllConfig("etc"))
ticker := time.NewTicker(2 * time.Second)
defer ticker.Stop()
for range ticker.C {
// 每2秒执行一次
err := a.Put(item)
if err != nil {
log.Println(err)
}
}
select {}
}
func TestStartNodeB(t *testing.T) {
svc, err := fusenrender.LoadConfig("etc/etc_b.yaml")
if err != nil {
panic(err)
}
item := &fusenrender.QueueItem{
Group: "test",
Priority: uint32(1),
CreateAt: time.Now(),
Data: "b",
}
b := fusenrender.StartNode(svc.ServerID, svc.Address(), fusenrender.LoadAllConfig("etc"))
ticker := time.NewTicker(2 * time.Second)
defer ticker.Stop()
for range ticker.C {
// 每2秒执行一次
err := b.Put(item)
if err != nil {
log.Println(err)
}
}
select {}
}
func TestStartNodeC(t *testing.T) {
svc, err := fusenrender.LoadConfig("etc/etc_c.yaml")
if err != nil {
panic(err)
}
c := fusenrender.StartNode(svc.ServerID, svc.Address(), fusenrender.LoadAllConfig("etc"))
ticker := time.NewTicker(2 * time.Second)
defer ticker.Stop()
for range ticker.C {
item, err := c.Pop("test")
if err != nil {
panic(err)
}
log.Println(item)
if item == nil {
log.Println("empty")
}
}
}