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Code Issues Projects Releases Wiki Activity

shell: show which server holds the lock

Browse source 
fix https://github.com/chrislusf/seaweedfs/issues/1983
This commit is contained in:
Chris Lu 2021-04-22 23:56:35 -07:00
parent 89eb9f6e70
commit f0ad172e80
5 changed files with 128 additions and 109 deletions
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1
weed/pb/master.proto
View file

@ -288,6 +288,7 @@ message LeaseAdminTokenRequest {
int64 previous_token = 1; int64 previous_token = 1;
int64 previous_lock_time = 2; int64 previous_lock_time = 2;
string lock_name = 3; string lock_name = 3;
string client_name = 4;
} }
message LeaseAdminTokenResponse { message LeaseAdminTokenResponse {
int64 token = 1; int64 token = 1;

206
weed/pb/master_pb/master.pb.go
View file

@ -2468,6 +2468,7 @@ type LeaseAdminTokenRequest struct {
PreviousToken int64 `protobuf:"varint,1,opt,name=previous_token,json=previousToken,proto3" json:"previous_token,omitempty"` PreviousToken int64 `protobuf:"varint,1,opt,name=previous_token,json=previousToken,proto3" json:"previous_token,omitempty"`
PreviousLockTime int64 `protobuf:"varint,2,opt,name=previous_lock_time,json=previousLockTime,proto3" json:"previous_lock_time,omitempty"` PreviousLockTime int64 `protobuf:"varint,2,opt,name=previous_lock_time,json=previousLockTime,proto3" json:"previous_lock_time,omitempty"`
LockName string `protobuf:"bytes,3,opt,name=lock_name,json=lockName,proto3" json:"lock_name,omitempty"` LockName string `protobuf:"bytes,3,opt,name=lock_name,json=lockName,proto3" json:"lock_name,omitempty"`
ClientName string `protobuf:"bytes,4,opt,name=client_name,json=clientName,proto3" json:"client_name,omitempty"`
} }
func (x *LeaseAdminTokenRequest) Reset() { func (x *LeaseAdminTokenRequest) Reset() {
@ -2523,6 +2524,13 @@ func (x *LeaseAdminTokenRequest) GetLockName() string {
return "" return ""
} }
func (x *LeaseAdminTokenRequest) GetClientName() string {
if x != nil {
return x.ClientName
}
return ""
}
type LeaseAdminTokenResponse struct { type LeaseAdminTokenResponse struct {
state protoimpl.MessageState state protoimpl.MessageState
sizeCache protoimpl.SizeCache sizeCache protoimpl.SizeCache
@ -3268,7 +3276,7 @@ var file_master_proto_rawDesc = []byte{
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@ -3277,103 +3285,105 @@ var file_master_proto_rawDesc = []byte{
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} }
var ( var (

21
weed/server/master_grpc_server_admin.go
View file

@ -3,6 +3,7 @@ package weed_server
import ( import (
"context" "context"
"fmt" "fmt"
"github.com/chrislusf/seaweedfs/weed/glog"
"math/rand" "math/rand"
"sync" "sync"
"time" "time"
@ -60,6 +61,7 @@ const (
type AdminLock struct { type AdminLock struct {
accessSecret int64 accessSecret int64
accessLockTime time.Time accessLockTime time.Time
lastClient string
} }
type AdminLocks struct { type AdminLocks struct {
@ -73,14 +75,15 @@ func NewAdminLocks() *AdminLocks {
} }
} }
func (locks *AdminLocks) isLocked(lockName string) bool { func (locks *AdminLocks) isLocked(lockName string) (clientName string, isLocked bool) {
locks.RLock() locks.RLock()
defer locks.RUnlock() defer locks.RUnlock()
adminLock, found := locks.locks[lockName] adminLock, found := locks.locks[lockName]
if !found { if !found {
return false return "", false
} }
return adminLock.accessLockTime.Add(LockDuration).After(time.Now()) glog.V(4).Infof("isLocked %v", adminLock.lastClient)
return adminLock.lastClient, adminLock.accessLockTime.Add(LockDuration).After(time.Now())
} }
func (locks *AdminLocks) isValidToken(lockName string, ts time.Time, token int64) bool { func (locks *AdminLocks) isValidToken(lockName string, ts time.Time, token int64) bool {
@ -93,12 +96,13 @@ func (locks *AdminLocks) isValidToken(lockName string, ts time.Time, token int64
return adminLock.accessLockTime.Equal(ts) && adminLock.accessSecret == token return adminLock.accessLockTime.Equal(ts) && adminLock.accessSecret == token
} }
func (locks *AdminLocks) generateToken(lockName string) (ts time.Time, token int64) { func (locks *AdminLocks) generateToken(lockName string, clientName string) (ts time.Time, token int64) {
locks.Lock() locks.Lock()
defer locks.Unlock() defer locks.Unlock()
lock := &AdminLock{ lock := &AdminLock{
accessSecret: rand.Int63(), accessSecret: rand.Int63(),
accessLockTime: time.Now(), accessLockTime: time.Now(),
lastClient: clientName,
} }
locks.locks[lockName] = lock locks.locks[lockName] = lock
return lock.accessLockTime, lock.accessSecret return lock.accessLockTime, lock.accessSecret
@ -113,18 +117,19 @@ func (locks *AdminLocks) deleteLock(lockName string) {
func (ms *MasterServer) LeaseAdminToken(ctx context.Context, req *master_pb.LeaseAdminTokenRequest) (*master_pb.LeaseAdminTokenResponse, error) { func (ms *MasterServer) LeaseAdminToken(ctx context.Context, req *master_pb.LeaseAdminTokenRequest) (*master_pb.LeaseAdminTokenResponse, error) {
resp := &master_pb.LeaseAdminTokenResponse{} resp := &master_pb.LeaseAdminTokenResponse{}
if ms.adminLocks.isLocked(req.LockName) { if lastClient, isLocked := ms.adminLocks.isLocked(req.LockName); isLocked {
glog.V(4).Infof("LeaseAdminToken %v", lastClient)
if req.PreviousToken != 0 && ms.adminLocks.isValidToken(req.LockName, time.Unix(0, req.PreviousLockTime), req.PreviousToken) { if req.PreviousToken != 0 && ms.adminLocks.isValidToken(req.LockName, time.Unix(0, req.PreviousLockTime), req.PreviousToken) {
// for renew // for renew
ts, token := ms.adminLocks.generateToken(req.LockName) ts, token := ms.adminLocks.generateToken(req.LockName, req.ClientName)
resp.Token, resp.LockTsNs = token, ts.UnixNano() resp.Token, resp.LockTsNs = token, ts.UnixNano()
return resp, nil return resp, nil
} }
// refuse since still locked // refuse since still locked
return resp, fmt.Errorf("already locked") return resp, fmt.Errorf("already locked by " + lastClient)
} }
// for fresh lease request // for fresh lease request
ts, token := ms.adminLocks.generateToken(req.LockName) ts, token := ms.adminLocks.generateToken(req.LockName, req.ClientName)
resp.Token, resp.LockTsNs = token, ts.UnixNano() resp.Token, resp.LockTsNs = token, ts.UnixNano()
return resp, nil return resp, nil
} }

3
weed/shell/command_fs_lock_unlock.go
View file

@ -1,6 +1,7 @@
package shell package shell
import ( import (
"github.com/chrislusf/seaweedfs/weed/util"
"io" "io"
) )
@ -26,7 +27,7 @@ func (c *commandLock) Help() string {
func (c *commandLock) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) { func (c *commandLock) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
commandEnv.locker.RequestLock() commandEnv.locker.RequestLock(util.DetectedHostAddress())
return nil return nil
} }

6
weed/wdclient/exclusive_locks/exclusive_locker.go
View file

@ -41,7 +41,7 @@ func (l *ExclusiveLocker) GetToken() (token int64, lockTsNs int64) {
return atomic.LoadInt64(&l.token), atomic.LoadInt64(&l.lockTsNs) return atomic.LoadInt64(&l.token), atomic.LoadInt64(&l.lockTsNs)
} }
func (l *ExclusiveLocker) RequestLock() { func (l *ExclusiveLocker) RequestLock(clientName string) {
if l.isLocking { if l.isLocking {
return return
} }
@ -56,6 +56,7 @@ func (l *ExclusiveLocker) RequestLock() {
PreviousToken: atomic.LoadInt64(&l.token), PreviousToken: atomic.LoadInt64(&l.token),
PreviousLockTime: atomic.LoadInt64(&l.lockTsNs), PreviousLockTime: atomic.LoadInt64(&l.lockTsNs),
LockName: AdminLockName, LockName: AdminLockName,
ClientName: clientName,
}) })
if err == nil { if err == nil {
atomic.StoreInt64(&l.token, resp.Token) atomic.StoreInt64(&l.token, resp.Token)
@ -63,7 +64,7 @@ func (l *ExclusiveLocker) RequestLock() {
} }
return err return err
}); err != nil { }); err != nil {
// println("leasing problem", err.Error()) println("lock:", err.Error())
time.Sleep(InitLockInteval) time.Sleep(InitLockInteval)
} else { } else {
break break
@ -83,6 +84,7 @@ func (l *ExclusiveLocker) RequestLock() {
PreviousToken: atomic.LoadInt64(&l.token), PreviousToken: atomic.LoadInt64(&l.token),
PreviousLockTime: atomic.LoadInt64(&l.lockTsNs), PreviousLockTime: atomic.LoadInt64(&l.lockTsNs),
LockName: AdminLockName, LockName: AdminLockName,
ClientName: clientName,
}) })
if err == nil { if err == nil {
atomic.StoreInt64(&l.token, resp.Token) atomic.StoreInt64(&l.token, resp.Token)