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EC: after ec encoding, the source ec shards may fail to purge if the volume server has multiple disk locations

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related to https://github.com/seaweedfs/seaweedfs/issues/3459
This commit is contained in:
chrislu 2022-08-21 14:52:37 -07:00
parent 8b3429858d
commit 5790d01c6f
1 changed files with 49 additions and 37 deletions
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86
weed/server/volume_grpc_erasure_coding.go
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@ -173,24 +173,37 @@ func (vs *VolumeServer) VolumeEcShardsDelete(ctx context.Context, req *volume_se
bName := erasure_coding.EcShardBaseFileName(req.Collection, int(req.VolumeId))
glog.V(0).Infof("ec volume %d shard delete %v", req.VolumeId, req.ShardIds)
glog.V(0).Infof("ec volume %s shard delete %v", bName, req.ShardIds)
for _, location := range vs.store.Locations {
if err := deleteEcShardIdsForEachLocation(bName, location, req.ShardIds); err != nil {
glog.Errorf("deleteEcShards from %s %s.%v: %v", location, bName, req.ShardIds, err)
return nil, err
}
}
return &volume_server_pb.VolumeEcShardsDeleteResponse{}, nil
}
func deleteEcShardIdsForEachLocation(bName string, location *storage.DiskLocation, shardIds []uint32) error {
found := false
var indexBaseFilename, dataBaseFilename string
for _, location := range vs.store.Locations {
if util.FileExists(path.Join(location.IdxDirectory, bName+".ecx")) {
found = true
indexBaseFilename = path.Join(location.IdxDirectory, bName)
dataBaseFilename = path.Join(location.Directory, bName)
for _, shardId := range req.ShardIds {
os.Remove(dataBaseFilename + erasure_coding.ToExt(int(shardId)))
indexBaseFilename := path.Join(location.IdxDirectory, bName)
dataBaseFilename := path.Join(location.Directory, bName)
if util.FileExists(path.Join(location.IdxDirectory, bName+".ecx")) {
for _, shardId := range shardIds {
shardFileName := dataBaseFilename + erasure_coding.ToExt(int(shardId))
if util.FileExists(shardFileName) {
found = true
os.Remove(shardFileName)
}
break
}
}
if !found {
return nil, nil
return nil
}
// check whether to delete the .ecx and .ecj file also
@ -198,45 +211,44 @@ func (vs *VolumeServer) VolumeEcShardsDelete(ctx context.Context, req *volume_se
hasIdxFile := false
existingShardCount := 0
for _, location := range vs.store.Locations {
fileInfos, err := os.ReadDir(location.Directory)
fileInfos, err := os.ReadDir(location.Directory)
if err != nil {
return err
}
if location.IdxDirectory != location.Directory {
idxFileInfos, err := os.ReadDir(location.IdxDirectory)
if err != nil {
return err
}
fileInfos = append(fileInfos, idxFileInfos...)
}
for _, fileInfo := range fileInfos {
if fileInfo.Name() == bName+".ecx" || fileInfo.Name() == bName+".ecj" {
hasEcxFile = true
continue
}
if location.IdxDirectory != location.Directory {
idxFileInfos, err := os.ReadDir(location.IdxDirectory)
if err != nil {
continue
}
fileInfos = append(fileInfos, idxFileInfos...)
if fileInfo.Name() == bName+".idx" {
hasIdxFile = true
continue
}
for _, fileInfo := range fileInfos {
if fileInfo.Name() == bName+".ecx" || fileInfo.Name() == bName+".ecj" {
hasEcxFile = true
continue
}
if fileInfo.Name() == bName+".idx" {
hasIdxFile = true
continue
}
if strings.HasPrefix(fileInfo.Name(), bName+".ec") {
existingShardCount++
}
if strings.HasPrefix(fileInfo.Name(), bName+".ec") {
existingShardCount++
}
}
if hasEcxFile && existingShardCount == 0 {
if err := os.Remove(indexBaseFilename + ".ecx"); err != nil {
return nil, err
return err
}
os.Remove(indexBaseFilename + ".ecj")
}
if !hasIdxFile {
// .vif is used for ec volumes and normal volumes
os.Remove(dataBaseFilename + ".vif")
if !hasIdxFile {
// .vif is used for ec volumes and normal volumes
os.Remove(dataBaseFilename + ".vif")
}
}
return &volume_server_pb.VolumeEcShardsDeleteResponse{}, nil
return nil
}
func (vs *VolumeServer) VolumeEcShardsMount(ctx context.Context, req *volume_server_pb.VolumeEcShardsMountRequest) (*volume_server_pb.VolumeEcShardsMountResponse, error) {