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Diffstat (limited to 'weed')
-rw-r--r--weed/command/scaffold.go7
-rw-r--r--weed/operation/assign_file_id.go16
-rw-r--r--weed/pb/master.proto1
-rw-r--r--weed/pb/master_pb/master.pb.go268
-rw-r--r--weed/pb/volume_server_pb/volume_server.pb.go2
-rw-r--r--weed/sequence/etcd_sequencer.go296
-rw-r--r--weed/server/master_grpc_server_volume.go2
-rw-r--r--weed/server/master_server.go38
-rw-r--r--weed/server/master_server_handlers.go7
-rw-r--r--weed/shell/command_ec_balance.go4
-rw-r--r--weed/shell/command_ec_common.go2
-rw-r--r--weed/topology/volume_growth.go7
-rw-r--r--weed/util/config.go4
13 files changed, 509 insertions, 145 deletions
diff --git a/weed/command/scaffold.go b/weed/command/scaffold.go
index 7a988cdcf..6fa72c730 100644
--- a/weed/command/scaffold.go
+++ b/weed/command/scaffold.go
@@ -346,5 +346,12 @@ scripts = """
"""
sleep_minutes = 17 # sleep minutes between each script execution
+sequencer_type = memory # Choose [memory|etcd] type for storing the file id sequence
+
+# when sequencer.type = etcd, set listen client urls of etcd cluster that store file id sequence
+# example : http://127.0.0.1:2379,http://127.0.0.1:2389
+sequencer_etcd_urls = http://127.0.0.1:2379
+
+
`
)
diff --git a/weed/operation/assign_file_id.go b/weed/operation/assign_file_id.go
index 4c50eaa26..2971cddbb 100644
--- a/weed/operation/assign_file_id.go
+++ b/weed/operation/assign_file_id.go
@@ -11,13 +11,14 @@ import (
)
type VolumeAssignRequest struct {
- Count uint64
- Replication string
- Collection string
- Ttl string
- DataCenter string
- Rack string
- DataNode string
+ Count uint64
+ Replication string
+ Collection string
+ Ttl string
+ DataCenter string
+ Rack string
+ DataNode string
+ WritableVolumeCount uint32
}
type AssignResult struct {
@@ -53,6 +54,7 @@ func Assign(server string, grpcDialOption grpc.DialOption, primaryRequest *Volum
DataCenter: primaryRequest.DataCenter,
Rack: primaryRequest.Rack,
DataNode: primaryRequest.DataNode,
+ WritableVolumeCount: primaryRequest.WritableVolumeCount,
}
resp, grpcErr := masterClient.Assign(context.Background(), req)
if grpcErr != nil {
diff --git a/weed/pb/master.proto b/weed/pb/master.proto
index 80231a2d8..f03b3a9ab 100644
--- a/weed/pb/master.proto
+++ b/weed/pb/master.proto
@@ -140,6 +140,7 @@ message AssignRequest {
string rack = 6;
string data_node = 7;
uint32 memory_map_max_size_mb = 8;
+ uint32 Writable_volume_count = 9;
}
message AssignResponse {
string fid = 1;
diff --git a/weed/pb/master_pb/master.pb.go b/weed/pb/master_pb/master.pb.go
index 880d39de5..e9fe8164c 100644
--- a/weed/pb/master_pb/master.pb.go
+++ b/weed/pb/master_pb/master.pb.go
@@ -648,14 +648,15 @@ func (m *Location) GetPublicUrl() string {
}
type AssignRequest struct {
- Count uint64 `protobuf:"varint,1,opt,name=count" json:"count,omitempty"`
- Replication string `protobuf:"bytes,2,opt,name=replication" json:"replication,omitempty"`
- Collection string `protobuf:"bytes,3,opt,name=collection" json:"collection,omitempty"`
- Ttl string `protobuf:"bytes,4,opt,name=ttl" json:"ttl,omitempty"`
- DataCenter string `protobuf:"bytes,5,opt,name=data_center,json=dataCenter" json:"data_center,omitempty"`
- Rack string `protobuf:"bytes,6,opt,name=rack" json:"rack,omitempty"`
- DataNode string `protobuf:"bytes,7,opt,name=data_node,json=dataNode" json:"data_node,omitempty"`
- MemoryMapMaxSizeMb uint32 `protobuf:"varint,8,opt,name=memory_map_max_size_mb,json=MemoryMapMaxSizeMb" json:"memory_map_max_size_mb,omitempty"`
+ Count uint64 `protobuf:"varint,1,opt,name=count" json:"count,omitempty"`
+ Replication string `protobuf:"bytes,2,opt,name=replication" json:"replication,omitempty"`
+ Collection string `protobuf:"bytes,3,opt,name=collection" json:"collection,omitempty"`
+ Ttl string `protobuf:"bytes,4,opt,name=ttl" json:"ttl,omitempty"`
+ DataCenter string `protobuf:"bytes,5,opt,name=data_center,json=dataCenter" json:"data_center,omitempty"`
+ Rack string `protobuf:"bytes,6,opt,name=rack" json:"rack,omitempty"`
+ DataNode string `protobuf:"bytes,7,opt,name=data_node,json=dataNode" json:"data_node,omitempty"`
+ MemoryMapMaxSizeMb uint32 `protobuf:"varint,8,opt,name=memory_map_max_size_mb,json=memoryMapMaxSizeMb" json:"memory_map_max_size_mb,omitempty"`
+ WritableVolumeCount uint32 `protobuf:"varint,9,opt,name=Writable_volume_count,json=WritableVolumeCount" json:"Writable_volume_count,omitempty"`
}
func (m *AssignRequest) Reset() { *m = AssignRequest{} }
@@ -719,6 +720,13 @@ func (m *AssignRequest) GetMemoryMapMaxSizeMb() uint32 {
return 0
}
+func (m *AssignRequest) GetWritableVolumeCount() uint32 {
+ if m != nil {
+ return m.WritableVolumeCount
+ }
+ return 0
+}
+
type AssignResponse struct {
Fid string `protobuf:"bytes,1,opt,name=fid" json:"fid,omitempty"`
Url string `protobuf:"bytes,2,opt,name=url" json:"url,omitempty"`
@@ -1809,125 +1817,127 @@ var _Seaweed_serviceDesc = grpc.ServiceDesc{
func init() { proto.RegisterFile("master.proto", fileDescriptor0) }
var fileDescriptor0 = []byte{
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+ 0x05, 0x10, 0x23, 0x80, 0x83, 0x22, 0xfa, 0x55, 0x1d, 0xf8, 0xb7, 0x70, 0xbb, 0xb0, 0x78, 0x1a,
+ 0x50, 0xa6, 0xf3, 0xf2, 0x19, 0x6c, 0x07, 0xb1, 0x17, 0x4e, 0x7d, 0xe2, 0xc6, 0x7c, 0x00, 0x86,
+ 0x39, 0xaf, 0xb6, 0x04, 0x1d, 0xd9, 0x52, 0xda, 0x67, 0x42, 0xa9, 0xf9, 0xf5, 0xc7, 0x80, 0xf4,
+ 0x2a, 0xe2, 0xe5, 0x2b, 0x2a, 0x62, 0x45, 0x4f, 0x69, 0x0e, 0x3d, 0x65, 0x6d, 0xbf, 0x80, 0xed,
+ 0xc5, 0xcd, 0x55, 0xaa, 0x7e, 0x04, 0xad, 0x02, 0x76, 0xdd, 0x07, 0x6f, 0x1b, 0xed, 0xa7, 0x58,
+ 0xe7, 0x98, 0x96, 0xf6, 0xf7, 0xe1, 0xbd, 0x42, 0xf5, 0x58, 0x34, 0xfa, 0xab, 0x06, 0xd0, 0x10,
+ 0x06, 0xcb, 0xe6, 0x32, 0x06, 0xfb, 0xdf, 0x15, 0x68, 0x3f, 0x56, 0x95, 0xcb, 0x59, 0x80, 0x31,
+ 0xf7, 0x9b, 0x62, 0xee, 0xdf, 0x87, 0x76, 0xa9, 0x20, 0x25, 0xa1, 0x6c, 0x5d, 0x18, 0x17, 0xbd,
+ 0x55, 0x57, 0xc2, 0xaa, 0x30, 0x5b, 0xbc, 0x12, 0x3e, 0x80, 0xfe, 0x49, 0x46, 0xc8, 0xf2, 0xed,
+ 0xb1, 0xe6, 0x6c, 0x70, 0x85, 0x69, 0xbb, 0x07, 0x9b, 0xd8, 0x63, 0xc1, 0xc5, 0x82, 0xb5, 0x3c,
+ 0x5f, 0x7d, 0xa9, 0x32, 0xed, 0xbf, 0xc8, 0x03, 0x0d, 0xe2, 0x93, 0x84, 0x0e, 0xea, 0x6f, 0x7e,
+ 0xfb, 0x53, 0x5f, 0xc3, 0x35, 0x14, 0x3d, 0x87, 0xae, 0xbe, 0x45, 0x28, 0x4f, 0xeb, 0x37, 0xbe,
+ 0xa1, 0xb4, 0x49, 0xa1, 0xa2, 0xf6, 0xef, 0x2b, 0xd0, 0x70, 0xb0, 0x77, 0xfe, 0x6e, 0xe3, 0xfb,
+ 0x39, 0x6c, 0xe4, 0x3d, 0xbf, 0x04, 0xf1, 0x7b, 0x06, 0x30, 0xe6, 0x51, 0x72, 0x3a, 0xbe, 0xf1,
+ 0x46, 0xed, 0xff, 0x59, 0xd0, 0x7d, 0x9c, 0xcf, 0x95, 0x77, 0x1b, 0x8c, 0x7d, 0x00, 0x3e, 0x08,
+ 0x4b, 0x38, 0x98, 0xc4, 0x41, 0xa7, 0xdb, 0x69, 0x66, 0xea, 0x89, 0xda, 0x7f, 0xac, 0x40, 0xfb,
+ 0x65, 0x92, 0x26, 0x61, 0x72, 0x3a, 0x7f, 0xb7, 0xbf, 0xfe, 0x10, 0xfa, 0x06, 0x67, 0x28, 0x81,
+ 0x70, 0x67, 0xe1, 0x30, 0x14, 0xc9, 0x76, 0x36, 0xfc, 0xd2, 0x3b, 0xb5, 0x37, 0xa1, 0xaf, 0x78,
+ 0x71, 0xd1, 0x92, 0xed, 0xdf, 0x59, 0x80, 0x4c, 0xa9, 0xea, 0x95, 0x3f, 0x85, 0x0e, 0x53, 0xd8,
+ 0x89, 0xfd, 0xd4, 0xe5, 0xc0, 0x3c, 0x7b, 0x26, 0xb6, 0x4e, 0x9b, 0x99, 0x48, 0xff, 0x00, 0xb6,
+ 0x96, 0x6e, 0xf8, 0x9c, 0x90, 0x48, 0x84, 0xfb, 0x0b, 0x97, 0xfc, 0xe3, 0x89, 0xfd, 0x19, 0xdc,
+ 0x96, 0x24, 0x54, 0xf7, 0x71, 0xdd, 0x5f, 0x97, 0xd8, 0x64, 0xa7, 0x60, 0x93, 0xf6, 0x7f, 0x2d,
+ 0xd8, 0x5e, 0x5c, 0xa6, 0xe2, 0xbf, 0x6a, 0x1d, 0xc2, 0x80, 0x54, 0xbf, 0x31, 0x79, 0xb1, 0xa4,
+ 0xa3, 0x9f, 0x2e, 0xf1, 0xe2, 0x45, 0xdf, 0x7b, 0xba, 0x0f, 0x15, 0xd4, 0xb8, 0x47, 0xcb, 0x02,
+ 0x3a, 0xc4, 0xd0, 0x5f, 0x32, 0xe3, 0xb7, 0x0a, 0xbd, 0xaf, 0x8a, 0x69, 0x5d, 0x2d, 0xfc, 0x16,
+ 0xc4, 0xd8, 0xde, 0x81, 0xbb, 0x5f, 0x12, 0x76, 0x2c, 0x6c, 0x0e, 0x92, 0xf8, 0x24, 0x38, 0x9d,
+ 0x66, 0xd2, 0xa8, 0x48, 0xed, 0xbd, 0xcb, 0x2c, 0x14, 0x4c, 0x2b, 0x7e, 0x46, 0xb1, 0x6e, 0xfc,
+ 0x33, 0x4a, 0xe5, 0xaa, 0x9f, 0x51, 0xf6, 0xff, 0x55, 0x87, 0xf5, 0x31, 0xc1, 0xaf, 0x09, 0xf1,
+ 0xd1, 0x11, 0x74, 0xc6, 0x24, 0xf6, 0x8b, 0x1f, 0x48, 0xb7, 0x8c, 0x6f, 0xcc, 0xa5, 0xc3, 0xef,
+ 0xac, 0x92, 0xe6, 0x23, 0xf4, 0xd6, 0xae, 0xf5, 0x89, 0x85, 0x5e, 0x40, 0xa7, 0x74, 0x23, 0x44,
+ 0x3b, 0xc6, 0xa2, 0x55, 0x77, 0xc5, 0xe1, 0x9d, 0xa5, 0x81, 0xa2, 0x51, 0xcd, 0x5d, 0xb6, 0xcd,
+ 0x9b, 0x10, 0xba, 0x77, 0xe9, 0x15, 0x49, 0x3a, 0xdc, 0xb9, 0xe6, 0x0a, 0x65, 0xdf, 0x42, 0x9f,
+ 0x43, 0x5d, 0x52, 0x66, 0x34, 0x30, 0x8c, 0x4b, 0x77, 0x8f, 0x52, 0x5c, 0x65, 0x7e, 0x6d, 0xdf,
+ 0x42, 0x4f, 0x00, 0x0a, 0xd2, 0x89, 0x4c, 0x60, 0x96, 0x58, 0xef, 0xf0, 0xee, 0x25, 0xda, 0xdc,
+ 0xd9, 0xd7, 0xd0, 0x2d, 0x53, 0x23, 0x34, 0x5a, 0xc9, 0x7e, 0x8c, 0xfe, 0x30, 0xbc, 0x7f, 0x85,
+ 0x45, 0xee, 0xf8, 0x57, 0xd0, 0x5b, 0x64, 0x3c, 0xc8, 0x5e, 0xb9, 0xb0, 0xc4, 0x9e, 0x86, 0x1f,
+ 0x5c, 0x69, 0x63, 0x82, 0x50, 0xb4, 0xa8, 0x12, 0x08, 0x4b, 0xfd, 0xac, 0x04, 0xc2, 0x72, 0x5f,
+ 0x93, 0x20, 0x94, 0xeb, 0xba, 0x04, 0xc2, 0xca, 0x2e, 0x54, 0x02, 0x61, 0x75, 0x53, 0xb0, 0x6f,
+ 0xa1, 0x04, 0xb6, 0x57, 0x57, 0x1b, 0x32, 0x7f, 0x52, 0xb9, 0xb2, 0x64, 0x87, 0x1f, 0xbd, 0x81,
+ 0xa5, 0xde, 0x70, 0x52, 0x17, 0xff, 0x3e, 0x7c, 0xfa, 0xff, 0x00, 0x00, 0x00, 0xff, 0xff, 0x44,
+ 0x05, 0x7a, 0xc2, 0x8d, 0x18, 0x00, 0x00,
}
diff --git a/weed/pb/volume_server_pb/volume_server.pb.go b/weed/pb/volume_server_pb/volume_server.pb.go
index f8af827a6..24907cdba 100644
--- a/weed/pb/volume_server_pb/volume_server.pb.go
+++ b/weed/pb/volume_server_pb/volume_server.pb.go
@@ -320,7 +320,7 @@ type AllocateVolumeRequest struct {
Preallocate int64 `protobuf:"varint,3,opt,name=preallocate" json:"preallocate,omitempty"`
Replication string `protobuf:"bytes,4,opt,name=replication" json:"replication,omitempty"`
Ttl string `protobuf:"bytes,5,opt,name=ttl" json:"ttl,omitempty"`
- MemoryMapMaxSizeMb uint32 `protobuf:"varint,6,opt,name=memory_map_max_size_mb,json=MemoryMapMaxSizeMb" json:"memory_map_max_size_mb,omitempty"`
+ MemoryMapMaxSizeMb uint32 `protobuf:"varint,6,opt,name=memory_map_max_size_mb,json=memoryMapMaxSizeMb" json:"memory_map_max_size_mb,omitempty"`
}
func (m *AllocateVolumeRequest) Reset() { *m = AllocateVolumeRequest{} }
diff --git a/weed/sequence/etcd_sequencer.go b/weed/sequence/etcd_sequencer.go
new file mode 100644
index 000000000..1fc378640
--- /dev/null
+++ b/weed/sequence/etcd_sequencer.go
@@ -0,0 +1,296 @@
+package sequence
+
+/*
+Note :
+(1) store the sequence in the ETCD cluster, and local file(sequence.dat)
+(2) batch get the sequences from ETCD cluster, and store the max sequence id in the local file
+(3) the sequence range is : [currentSeqId, maxSeqId), when the currentSeqId >= maxSeqId, fetch the new maxSeqId.
+*/
+
+import (
+ "context"
+ "fmt"
+ "sync"
+ "time"
+
+ "io"
+ "os"
+ "strconv"
+ "strings"
+
+ "github.com/chrislusf/seaweedfs/weed/glog"
+ "go.etcd.io/etcd/client"
+)
+
+const (
+ // EtcdKeyPrefix = "/seaweedfs"
+ EtcdKeySequence = "/master/sequence"
+ EtcdContextTimeoutSecond = 100 * time.Second
+ DefaultEtcdSteps uint64 = 500 // internal counter
+ SequencerFileName = "sequencer.dat"
+ FileMaxSequenceLength = 128
+)
+
+type EtcdSequencer struct {
+ sequenceLock sync.Mutex
+
+ // available sequence range : [currentSeqId, maxSeqId)
+ currentSeqId uint64
+ maxSeqId uint64
+
+ keysAPI client.KeysAPI
+ seqFile *os.File
+}
+
+func NewEtcdSequencer(etcdUrls string, metaFolder string) (*EtcdSequencer, error) {
+ file, err := openSequenceFile(metaFolder + "/" + SequencerFileName)
+ if nil != err {
+ return nil, fmt.Errorf("open sequence file fialed, %v", err)
+ }
+
+ cli, err := client.New(client.Config{
+ Endpoints: strings.Split(etcdUrls, ","),
+ Username: "",
+ Password: "",
+ })
+ if err != nil {
+ return nil, err
+ }
+ keysApi := client.NewKeysAPI(cli)
+
+ // TODO: the current sequence id in local file is not used
+ maxValue, _, err := readSequenceFile(file)
+ if err != nil {
+ return nil, fmt.Errorf("read sequence from file failed, %v", err)
+ }
+ glog.V(4).Infof("read sequence from file : %d", maxValue)
+
+ newSeq, err := setMaxSequenceToEtcd(keysApi, maxValue)
+ if err != nil {
+ return nil, err
+ }
+
+ sequencer := &EtcdSequencer{maxSeqId: newSeq,
+ currentSeqId: newSeq,
+ keysAPI: keysApi,
+ seqFile: file,
+ }
+ return sequencer, nil
+}
+
+func (es *EtcdSequencer) NextFileId(count uint64) uint64 {
+ es.sequenceLock.Lock()
+ defer es.sequenceLock.Unlock()
+
+ if (es.currentSeqId + count) >= es.maxSeqId {
+ reqSteps := DefaultEtcdSteps
+ if count > DefaultEtcdSteps {
+ reqSteps += count
+ }
+ maxId, err := batchGetSequenceFromEtcd(es.keysAPI, reqSteps)
+ glog.V(4).Infof("get max sequence id from etcd, %d", maxId)
+ if err != nil {
+ glog.Error(err)
+ return 0
+ }
+ es.currentSeqId, es.maxSeqId = maxId-reqSteps, maxId
+ glog.V(4).Infof("current id : %d, max id : %d", es.currentSeqId, es.maxSeqId)
+
+ if err := writeSequenceFile(es.seqFile, es.maxSeqId, es.currentSeqId); err != nil {
+ glog.Errorf("flush sequence to file failed, %v", err)
+ }
+ }
+
+ ret := es.currentSeqId
+ es.currentSeqId += count
+ return ret
+}
+
+/**
+instead of collecting the max value from volume server,
+the max value should be saved in local config file and ETCD cluster
+*/
+func (es *EtcdSequencer) SetMax(seenValue uint64) {
+ es.sequenceLock.Lock()
+ defer es.sequenceLock.Unlock()
+ if seenValue > es.maxSeqId {
+ maxId, err := setMaxSequenceToEtcd(es.keysAPI, seenValue)
+ if err != nil {
+ glog.Errorf("set Etcd Max sequence failed : %v", err)
+ return
+ }
+ es.currentSeqId, es.maxSeqId = maxId, maxId
+
+ if err := writeSequenceFile(es.seqFile, maxId, maxId); err != nil {
+ glog.Errorf("flush sequence to file failed, %v", err)
+ }
+ }
+}
+
+func (es *EtcdSequencer) GetMax() uint64 {
+ return es.maxSeqId
+}
+
+func (es *EtcdSequencer) Peek() uint64 {
+ return es.currentSeqId
+}
+
+func batchGetSequenceFromEtcd(kvApi client.KeysAPI, step uint64) (uint64, error) {
+ if step <= 0 {
+ return 0, fmt.Errorf("the step must be large than 1")
+ }
+
+ ctx, cancel := context.WithTimeout(context.Background(), EtcdContextTimeoutSecond)
+ var endSeqValue uint64 = 0
+ defer cancel()
+ for {
+ getResp, err := kvApi.Get(ctx, EtcdKeySequence, &client.GetOptions{Recursive: false, Quorum: true})
+ if err != nil {
+ return 0, err
+ }
+ if getResp.Node == nil {
+ continue
+ }
+
+ prevValue := getResp.Node.Value
+ prevSeqValue, err := strconv.ParseUint(prevValue, 10, 64)
+ if err != nil {
+ return 0, fmt.Errorf("get sequence from etcd failed, %v", err)
+ }
+ endSeqValue = prevSeqValue + step
+ endSeqStr := strconv.FormatUint(endSeqValue, 10)
+
+ _, err = kvApi.Set(ctx, EtcdKeySequence, endSeqStr, &client.SetOptions{PrevValue: prevValue})
+ if err == nil {
+ break
+ }
+ glog.Error(err)
+ }
+
+ return endSeqValue, nil
+}
+
+/**
+update the value of the key EtcdKeySequence in ETCD cluster with the parameter of maxSeq,
+when the value of the key EtcdKeySequence is equal to or large than the parameter maxSeq,
+return the value of EtcdKeySequence in the ETCD cluster;
+when the value of the EtcdKeySequence is less than the parameter maxSeq,
+return the value of the parameter maxSeq
+*/
+func setMaxSequenceToEtcd(kvApi client.KeysAPI, maxSeq uint64) (uint64, error) {
+ maxSeqStr := strconv.FormatUint(maxSeq, 10)
+ ctx, cancel := context.WithTimeout(context.Background(), EtcdContextTimeoutSecond)
+ defer cancel()
+
+ for {
+ getResp, err := kvApi.Get(ctx, EtcdKeySequence, &client.GetOptions{Recursive: false, Quorum: true})
+ if err != nil {
+ if ce, ok := err.(client.Error); ok && (ce.Code == client.ErrorCodeKeyNotFound) {
+ _, err := kvApi.Create(ctx, EtcdKeySequence, maxSeqStr)
+ if err == nil {
+ continue
+ }
+ if ce, ok = err.(client.Error); ok && (ce.Code == client.ErrorCodeNodeExist) {
+ continue
+ }
+ return 0, err
+ } else {
+ return 0, err
+ }
+ }
+
+ if getResp.Node == nil {
+ continue
+ }
+ prevSeqStr := getResp.Node.Value
+ prevSeq, err := strconv.ParseUint(prevSeqStr, 10, 64)
+ if err != nil {
+ return 0, err
+ }
+ if prevSeq >= maxSeq {
+ return prevSeq, nil
+ }
+
+ _, err = kvApi.Set(ctx, EtcdKeySequence, maxSeqStr, &client.SetOptions{PrevValue: prevSeqStr})
+ if err != nil {
+ return 0, err
+ }
+ }
+}
+
+func openSequenceFile(file string) (*os.File, error) {
+ _, err := os.Stat(file)
+ if os.IsNotExist(err) {
+ fid, err := os.OpenFile(file, os.O_RDWR|os.O_CREATE, 0644)
+ if err != nil {
+ return nil, err
+ }
+ if err := writeSequenceFile(fid, 1, 0); err != nil {
+ return nil, err
+ }
+ return fid, nil
+ } else {
+ return os.OpenFile(file, os.O_RDWR|os.O_CREATE, 0644)
+ }
+}
+
+/*
+read sequence and step from sequence file
+*/
+func readSequenceFile(file *os.File) (uint64, uint64, error) {
+ sequence := make([]byte, FileMaxSequenceLength)
+ size, err := file.ReadAt(sequence, 0)
+ if (err != nil) && (err != io.EOF) {
+ err := fmt.Errorf("cannot read file %s, %v", file.Name(), err)
+ return 0, 0, err
+ }
+ sequence = sequence[0:size]
+ seqs := strings.Split(string(sequence), ":")
+ maxId, err := strconv.ParseUint(seqs[0], 10, 64)
+ if err != nil {
+ return 0, 0, fmt.Errorf("parse sequence from file failed, %v", err)
+ }
+
+ if len(seqs) > 1 {
+ step, err := strconv.ParseUint(seqs[1], 10, 64)
+ if err != nil {
+ return 0, 0, fmt.Errorf("parse sequence from file failed, %v", err)
+ }
+ return maxId, step, nil
+ }
+
+ return maxId, 0, nil
+}
+
+/**
+write the sequence and step to sequence file
+*/
+func writeSequenceFile(file *os.File, sequence, step uint64) error {
+ _ = step
+ seqStr := fmt.Sprintf("%d:%d", sequence, sequence)
+ if _, err := file.Seek(0, 0); err != nil {
+ err = fmt.Errorf("cannot seek to the beginning of %s: %v", file.Name(), err)
+ return err
+ }
+ if err := file.Truncate(0); err != nil {
+ return fmt.Errorf("truncate sequence file faield : %v", err)
+ }
+ if _, err := file.WriteString(seqStr); err != nil {
+ return fmt.Errorf("write file %s failed, %v", file.Name(), err)
+ }
+ if err := file.Sync(); err != nil {
+ return fmt.Errorf("flush file %s failed, %v", file.Name(), err)
+ }
+ return nil
+}
+
+// the UT helper method
+// func deleteEtcdKey(kvApi client.KeysAPI, key string) error {
+// ctx, cancel := context.WithTimeout(context.Background(), EtcdContextTimeoutSecond)
+// defer cancel()
+// _, err := kvApi.Delete(ctx, key, &client.DeleteOptions{Dir: false})
+// if err != nil {
+// return err
+// }
+// return nil
+// }
diff --git a/weed/server/master_grpc_server_volume.go b/weed/server/master_grpc_server_volume.go
index 0580acf76..8fc56e9b8 100644
--- a/weed/server/master_grpc_server_volume.go
+++ b/weed/server/master_grpc_server_volume.go
@@ -78,7 +78,7 @@ func (ms *MasterServer) Assign(ctx context.Context, req *master_pb.AssignRequest
}
ms.vgLock.Lock()
if !ms.Topo.HasWritableVolume(option) {
- if _, err = ms.vg.AutomaticGrowByType(option, ms.grpcDialOption, ms.Topo); err != nil {
+ if _, err = ms.vg.AutomaticGrowByType(option, ms.grpcDialOption, ms.Topo, int(req.WritableVolumeCount)); err != nil {
ms.vgLock.Unlock()
return nil, fmt.Errorf("Cannot grow volume group! %v", err)
}
diff --git a/weed/server/master_server.go b/weed/server/master_server.go
index cde583560..15e6ee51c 100644
--- a/weed/server/master_server.go
+++ b/weed/server/master_server.go
@@ -27,6 +27,12 @@ import (
"google.golang.org/grpc"
)
+const (
+ MasterPrefix = "master.maintenance"
+ SequencerType = MasterPrefix + ".sequencer_type"
+ SequencerEtcdUrls = MasterPrefix + ".sequencer_etcd_urls"
+)
+
type MasterOption struct {
Port int
MetaFolder string
@@ -87,7 +93,11 @@ func NewMasterServer(r *mux.Router, option *MasterOption, peers []string) *Maste
MasterClient: wdclient.NewMasterClient(context.Background(), grpcDialOption, "master", peers),
}
ms.bounedLeaderChan = make(chan int, 16)
- seq := sequence.NewMemorySequencer()
+
+ seq := ms.createSequencer(option)
+ if nil == seq {
+ glog.Fatalf("create sequencer failed.")
+ }
ms.Topo = topology.NewTopology("topo", seq, uint64(ms.option.VolumeSizeLimitMB)*1024*1024, ms.option.PulseSeconds)
ms.vg = topology.NewDefaultVolumeGrowth()
glog.V(0).Infoln("Volume Size Limit is", ms.option.VolumeSizeLimitMB, "MB")
@@ -165,8 +175,8 @@ func (ms *MasterServer) proxyToLeader(f func(w http.ResponseWriter, r *http.Requ
proxy.Transport = util.Transport
proxy.ServeHTTP(w, r)
} else {
- //drop it to the floor
- //writeJsonError(w, r, errors.New(ms.Topo.RaftServer.Name()+" does not know Leader yet:"+ms.Topo.RaftServer.Leader()))
+ // drop it to the floor
+ // writeJsonError(w, r, errors.New(ms.Topo.RaftServer.Name()+" does not know Leader yet:"+ms.Topo.RaftServer.Leader()))
}
}
}
@@ -230,3 +240,25 @@ func (ms *MasterServer) startAdminScripts() {
}
}()
}
+
+func (ms *MasterServer) createSequencer(option *MasterOption) sequence.Sequencer {
+ var seq sequence.Sequencer
+ seqType := strings.ToLower(util.Config().GetString(SequencerType))
+ glog.V(0).Infof("[%s] : [%s]", SequencerType, seqType)
+ switch strings.ToLower(seqType) {
+ case "memory":
+ seq = sequence.NewMemorySequencer()
+ case "etcd":
+ var err error
+ urls := util.Config().GetString(SequencerEtcdUrls)
+ glog.V(0).Infof("[%s] : [%s]", SequencerEtcdUrls, urls)
+ seq, err = sequence.NewEtcdSequencer(urls, option.MetaFolder)
+ if err != nil {
+ glog.Error(err)
+ seq = nil
+ }
+ default:
+ seq = sequence.NewMemorySequencer()
+ }
+ return seq
+}
diff --git a/weed/server/master_server_handlers.go b/weed/server/master_server_handlers.go
index 9bcd35ced..514d86800 100644
--- a/weed/server/master_server_handlers.go
+++ b/weed/server/master_server_handlers.go
@@ -100,6 +100,11 @@ func (ms *MasterServer) dirAssignHandler(w http.ResponseWriter, r *http.Request)
requestedCount = 1
}
+ writableVolumeCount, e := strconv.Atoi(r.FormValue("writableVolumeCount"))
+ if e != nil {
+ writableVolumeCount = 0
+ }
+
option, err := ms.getVolumeGrowOption(r)
if err != nil {
writeJsonQuiet(w, r, http.StatusNotAcceptable, operation.AssignResult{Error: err.Error()})
@@ -114,7 +119,7 @@ func (ms *MasterServer) dirAssignHandler(w http.ResponseWriter, r *http.Request)
ms.vgLock.Lock()
defer ms.vgLock.Unlock()
if !ms.Topo.HasWritableVolume(option) {
- if _, err = ms.vg.AutomaticGrowByType(option, ms.grpcDialOption, ms.Topo); err != nil {
+ if _, err = ms.vg.AutomaticGrowByType(option, ms.grpcDialOption, ms.Topo, writableVolumeCount); err != nil {
writeJsonError(w, r, http.StatusInternalServerError,
fmt.Errorf("Cannot grow volume group! %v", err))
return
diff --git a/weed/shell/command_ec_balance.go b/weed/shell/command_ec_balance.go
index 47ae7bad3..8bf993f4a 100644
--- a/weed/shell/command_ec_balance.go
+++ b/weed/shell/command_ec_balance.go
@@ -266,6 +266,10 @@ func doBalanceEcShardsAcrossRacks(ctx context.Context, commandEnv *CommandEnv, c
for shardId, ecNode := range ecShardsToMove {
rackId := pickOneRack(racks, rackToShardCount, averageShardsPerEcRack)
+ if rackId == "" {
+ fmt.Printf("ec shard %d.%d at %s can not find a destination rack\n", vid, shardId, ecNode.info.Id)
+ continue
+ }
var possibleDestinationEcNodes []*EcNode
for _, n := range racks[rackId].ecNodes {
possibleDestinationEcNodes = append(possibleDestinationEcNodes, n)
diff --git a/weed/shell/command_ec_common.go b/weed/shell/command_ec_common.go
index d0fe16a68..1e9d96212 100644
--- a/weed/shell/command_ec_common.go
+++ b/weed/shell/command_ec_common.go
@@ -156,7 +156,7 @@ func countShards(ecShardInfos []*master_pb.VolumeEcShardInformationMessage) (cou
}
func countFreeShardSlots(dn *master_pb.DataNodeInfo) (count int) {
- return int(dn.FreeVolumeCount)*10 - countShards(dn.EcShardInfos)
+ return int(dn.FreeVolumeCount)*erasure_coding.DataShardsCount - countShards(dn.EcShardInfos)
}
type RackId string
diff --git a/weed/topology/volume_growth.go b/weed/topology/volume_growth.go
index f21ab45ef..636eb2260 100644
--- a/weed/topology/volume_growth.go
+++ b/weed/topology/volume_growth.go
@@ -59,8 +59,11 @@ func (vg *VolumeGrowth) findVolumeCount(copyCount int) (count int) {
return
}
-func (vg *VolumeGrowth) AutomaticGrowByType(option *VolumeGrowOption, grpcDialOption grpc.DialOption, topo *Topology) (count int, err error) {
- count, err = vg.GrowByCountAndType(grpcDialOption, vg.findVolumeCount(option.ReplicaPlacement.GetCopyCount()), option, topo)
+func (vg *VolumeGrowth) AutomaticGrowByType(option *VolumeGrowOption, grpcDialOption grpc.DialOption, topo *Topology, targetCount int) (count int, err error) {
+ if targetCount == 0 {
+ targetCount = vg.findVolumeCount(option.ReplicaPlacement.GetCopyCount())
+ }
+ count, err = vg.GrowByCountAndType(grpcDialOption, targetCount, option, topo)
if count > 0 && count%option.ReplicaPlacement.GetCopyCount() == 0 {
return count, nil
}
diff --git a/weed/util/config.go b/weed/util/config.go
index 1ea833d1f..7e2f9b373 100644
--- a/weed/util/config.go
+++ b/weed/util/config.go
@@ -40,5 +40,9 @@ func LoadConfiguration(configFileName string, required bool) (loaded bool) {
}
return true
+}
+func Config() Configuration {
+ return viper.GetViper()
}
+
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-21 10:31:35 +0000