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-rw-r--r--weed/storage/store.go7
-rw-r--r--weed/storage/store_ec.go66
2 files changed, 64 insertions, 9 deletions
diff --git a/weed/storage/store.go b/weed/storage/store.go
index d5474d87f..d4fdb1a03 100644
--- a/weed/storage/store.go
+++ b/weed/storage/store.go
@@ -8,6 +8,7 @@ import (
"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
"github.com/chrislusf/seaweedfs/weed/storage/needle"
. "github.com/chrislusf/seaweedfs/weed/storage/types"
+ "google.golang.org/grpc"
)
const (
@@ -18,6 +19,8 @@ const (
* A VolumeServer contains one Store
*/
type Store struct {
+ MasterGrpcAddress string
+ grpcDialOption grpc.DialOption
volumeSizeLimit uint64 //read from the master
Ip string
Port int
@@ -38,8 +41,8 @@ func (s *Store) String() (str string) {
return
}
-func NewStore(port int, ip, publicUrl string, dirnames []string, maxVolumeCounts []int, needleMapKind NeedleMapType) (s *Store) {
- s = &Store{Port: port, Ip: ip, PublicUrl: publicUrl, NeedleMapType: needleMapKind}
+func NewStore(grpcDialOption grpc.DialOption, port int, ip, publicUrl string, dirnames []string, maxVolumeCounts []int, needleMapKind NeedleMapType) (s *Store) {
+ s = &Store{grpcDialOption: grpcDialOption, Port: port, Ip: ip, PublicUrl: publicUrl, NeedleMapType: needleMapKind}
s.Locations = make([]*DiskLocation, 0)
for i := 0; i < len(dirnames); i++ {
location := NewDiskLocation(dirnames[i], maxVolumeCounts[i])
diff --git a/weed/storage/store_ec.go b/weed/storage/store_ec.go
index 7514339c9..ea08fc6bb 100644
--- a/weed/storage/store_ec.go
+++ b/weed/storage/store_ec.go
@@ -1,10 +1,14 @@
package storage
import (
+ "context"
"fmt"
+ "io"
"github.com/chrislusf/seaweedfs/weed/glog"
+ "github.com/chrislusf/seaweedfs/weed/operation"
"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
+ "github.com/chrislusf/seaweedfs/weed/pb/volume_server_pb"
"github.com/chrislusf/seaweedfs/weed/storage/erasure_coding"
"github.com/chrislusf/seaweedfs/weed/storage/needle"
)
@@ -87,7 +91,7 @@ func (s *Store) HasEcShard(vid needle.VolumeId) (erasure_coding.EcVolumeShards,
return nil, false
}
-func (s *Store) ReadEcShardNeedle(vid needle.VolumeId, n *needle.Needle) (int, error) {
+func (s *Store) ReadEcShardNeedle(ctx context.Context, vid needle.VolumeId, n *needle.Needle) (int, error) {
for _, location := range s.Locations {
if localEcShards, found := location.HasEcShard(vid); found {
@@ -96,7 +100,7 @@ func (s *Store) ReadEcShardNeedle(vid needle.VolumeId, n *needle.Needle) (int, e
return 0, err
}
- bytes, err := s.ReadEcShardIntervals(vid, localEcShards, intervals)
+ bytes, err := s.readEcShardIntervals(ctx, vid, localEcShards, intervals)
if err != nil {
return 0, fmt.Errorf("ReadEcShardIntervals: %v", err)
}
@@ -114,9 +118,14 @@ func (s *Store) ReadEcShardNeedle(vid needle.VolumeId, n *needle.Needle) (int, e
return 0, fmt.Errorf("ec shard %d not found", vid)
}
-func (s *Store) ReadEcShardIntervals(vid needle.VolumeId, localEcShards erasure_coding.EcVolumeShards, intervals []erasure_coding.Interval) (data []byte, err error) {
+func (s *Store) readEcShardIntervals(ctx context.Context, vid needle.VolumeId, localEcShards erasure_coding.EcVolumeShards, intervals []erasure_coding.Interval) (data []byte, err error) {
+ shardLocations, err := s.cachedLookupEcShardLocations(ctx, vid)
+ if err != nil {
+ return nil, fmt.Errorf("failed to locate shard via master grpc %s: %v", s.MasterGrpcAddress, err)
+ }
+
for i, interval := range intervals {
- if d, e := s.readOneEcShardInterval(vid, localEcShards, interval); e != nil {
+ if d, e := s.readOneEcShardInterval(ctx, vid, localEcShards, shardLocations, interval); e != nil {
return nil, e
} else {
if i == 0 {
@@ -129,7 +138,7 @@ func (s *Store) ReadEcShardIntervals(vid needle.VolumeId, localEcShards erasure_
return
}
-func (s *Store) readOneEcShardInterval(vid needle.VolumeId, localEcShards erasure_coding.EcVolumeShards, interval erasure_coding.Interval) (data []byte, err error) {
+func (s *Store) readOneEcShardInterval(ctx context.Context, vid needle.VolumeId, localEcShards erasure_coding.EcVolumeShards, shardLocations map[erasure_coding.ShardId]string, interval erasure_coding.Interval) (data []byte, err error) {
shardId, actualOffset := interval.ToShardIdAndOffset(erasure_coding.ErasureCodingLargeBlockSize, erasure_coding.ErasureCodingSmallBlockSize)
data = make([]byte, interval.Size)
if shard, found := localEcShards.FindEcVolumeShard(shardId); found {
@@ -137,14 +146,57 @@ func (s *Store) readOneEcShardInterval(vid needle.VolumeId, localEcShards erasur
return
}
} else {
- s.readOneRemoteEcShardInterval(vid, shardId, data, actualOffset)
+ sourceDataNode := shardLocations[shardId]
+ _, err = s.readOneRemoteEcShardInterval(ctx, sourceDataNode, vid, shardId, data, actualOffset)
+ if err != nil {
+ glog.V(1).Infof("failed to read from %s for ec shard %d.%d : %v", sourceDataNode, vid, shardId, err)
+ }
}
return
}
-func (s *Store) readOneRemoteEcShardInterval(vid needle.VolumeId, shardId erasure_coding.ShardId, buf []byte, offset int64) (n int, err error) {
+func (s *Store) cachedLookupEcShardLocations(ctx context.Context, vid needle.VolumeId) (shardLocations map[erasure_coding.ShardId]string, err error) {
+ return
+}
+
+func (s *Store) readOneRemoteEcShardInterval(ctx context.Context, sourceDataNode string, vid needle.VolumeId, shardId erasure_coding.ShardId, buf []byte, offset int64) (n int, err error) {
+
+ err = operation.WithVolumeServerClient(sourceDataNode, s.grpcDialOption, func(client volume_server_pb.VolumeServerClient) error {
+
+ // copy data slice
+ shardReadClient, err := client.VolumeEcShardRead(ctx, &volume_server_pb.VolumeEcShardReadRequest{
+ VolumeId: uint32(vid),
+ ShardId: uint32(shardId),
+ Offset: offset,
+ Size: int64(len(buf)),
+ })
+ if err != nil {
+ return fmt.Errorf("failed to start reading ec shard %d.%d from %s: %v", vid, shardId, sourceDataNode, err)
+ }
+ for {
+ resp, receiveErr := shardReadClient.Recv()
+ if receiveErr == io.EOF {
+ break
+ }
+ if receiveErr != nil {
+ return fmt.Errorf("receiving ec shard %d.%d from %s: %v", vid, shardId, sourceDataNode, err)
+ }
+ copy(buf[n:n+len(resp.Data)], resp.Data)
+ n += len(resp.Data)
+ }
+ return nil
+ })
+ if err != nil {
+ return 0, fmt.Errorf("read ec shard %d.%d from %s: %v", vid, shardId, sourceDataNode, err)
+ }
return
}
+
+func (s *Store) recoverOneRemoteEcShardInterval(ctx context.Context, string, vid needle.VolumeId, shardIdToRecover erasure_coding.ShardId, buf []byte, offset int64) (n int, err error) {
+ glog.V(1).Infof("recover ec shard %d.%d from other locations", vid, shardIdToRecover)
+ // TODO add recovering
+ return 0, fmt.Errorf("recover is not implemented yet")
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-21 08:36:33 +0000