mirror of
https://github.com/seaweedfs/seaweedfs.git
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101 lines
3.3 KiB
Go
101 lines
3.3 KiB
Go
package command
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import (
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"fmt"
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"github.com/seaweedfs/seaweedfs/weed/glog"
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"github.com/seaweedfs/seaweedfs/weed/pb"
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"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
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"github.com/seaweedfs/seaweedfs/weed/replication/source"
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"github.com/seaweedfs/seaweedfs/weed/security"
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"github.com/seaweedfs/seaweedfs/weed/util"
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"google.golang.org/grpc"
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"time"
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)
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type RemoteSyncOptions struct {
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filerAddress *string
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grpcDialOption grpc.DialOption
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readChunkFromFiler *bool
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timeAgo *time.Duration
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dir *string
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clientId int32
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clientEpoch int32
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}
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var _ = filer_pb.FilerClient(&RemoteSyncOptions{})
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func (option *RemoteSyncOptions) WithFilerClient(streamingMode bool, fn func(filer_pb.SeaweedFilerClient) error) error {
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return pb.WithFilerClient(streamingMode, pb.ServerAddress(*option.filerAddress), option.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
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return fn(client)
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})
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}
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func (option *RemoteSyncOptions) AdjustedUrl(location *filer_pb.Location) string {
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return location.Url
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}
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var (
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remoteSyncOptions RemoteSyncOptions
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)
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func init() {
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cmdFilerRemoteSynchronize.Run = runFilerRemoteSynchronize // break init cycle
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remoteSyncOptions.filerAddress = cmdFilerRemoteSynchronize.Flag.String("filer", "localhost:8888", "filer of the SeaweedFS cluster")
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remoteSyncOptions.dir = cmdFilerRemoteSynchronize.Flag.String("dir", "", "a mounted directory on filer")
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remoteSyncOptions.readChunkFromFiler = cmdFilerRemoteSynchronize.Flag.Bool("filerProxy", false, "read file chunks from filer instead of volume servers")
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remoteSyncOptions.timeAgo = cmdFilerRemoteSynchronize.Flag.Duration("timeAgo", 0, "start time before now, skipping previous metadata changes. \"300ms\", \"1.5h\" or \"2h45m\". Valid time units are \"ns\", \"us\" (or \"µs\"), \"ms\", \"s\", \"m\", \"h\"")
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remoteSyncOptions.clientId = util.RandomInt32()
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}
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var cmdFilerRemoteSynchronize = &Command{
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UsageLine: "filer.remote.sync",
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Short: "resumable continuously write back updates to remote storage",
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Long: `resumable continuously write back updates to remote storage
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filer.remote.sync listens on filer update events.
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If any mounted remote file is updated, it will fetch the updated content,
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and write to the remote storage.
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weed filer.remote.sync -dir=/mount/s3_on_cloud
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The metadata sync starting time is determined with the following priority order:
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1. specified by timeAgo
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2. last sync timestamp for this directory
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3. directory creation time
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`,
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}
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func runFilerRemoteSynchronize(cmd *Command, args []string) bool {
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util.LoadConfiguration("security", false)
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grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.client")
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remoteSyncOptions.grpcDialOption = grpcDialOption
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dir := *remoteSyncOptions.dir
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filerAddress := pb.ServerAddress(*remoteSyncOptions.filerAddress)
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filerSource := &source.FilerSource{}
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filerSource.DoInitialize(
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filerAddress.ToHttpAddress(),
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filerAddress.ToGrpcAddress(),
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"/", // does not matter
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*remoteSyncOptions.readChunkFromFiler,
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)
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if dir != "" {
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fmt.Printf("synchronize %s to remote storage...\n", dir)
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util.RetryForever("filer.remote.sync "+dir, func() error {
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return followUpdatesAndUploadToRemote(&remoteSyncOptions, filerSource, dir)
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}, func(err error) bool {
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if err != nil {
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glog.Errorf("synchronize %s: %v", dir, err)
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}
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return true
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})
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return true
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}
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return true
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}
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