mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-30 07:40:06 +01:00
101 lines
3.5 KiB
Go
101 lines
3.5 KiB
Go
package main
|
|
|
|
import (
|
|
"flag"
|
|
"fmt"
|
|
"os"
|
|
"time"
|
|
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/backup/actions"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/backup/common"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/backup/fslocal"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/buildinfo"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/envflag"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/pushmetrics"
|
|
)
|
|
|
|
var (
|
|
httpListenAddr = flag.String("httpListenAddr", ":8421", "TCP address for exporting metrics at /metrics page")
|
|
src = flag.String("src", "", "Source path with backup on the remote storage. "+
|
|
"Example: gs://bucket/path/to/backup/dir, s3://bucket/path/to/backup/dir or fs:///path/to/local/backup/dir")
|
|
storageDataPath = flag.String("storageDataPath", "victoria-metrics-data", "Destination path where backup must be restored. "+
|
|
"VictoriaMetrics must be stopped when restoring from backup. -storageDataPath dir can be non-empty. In this case the contents of -storageDataPath dir "+
|
|
"is synchronized with -src contents, i.e. it works like 'rsync --delete'")
|
|
concurrency = flag.Int("concurrency", 10, "The number of concurrent workers. Higher concurrency may reduce restore duration")
|
|
maxBytesPerSecond = flagutil.NewBytes("maxBytesPerSecond", 0, "The maximum download speed. There is no limit if it is set to 0")
|
|
skipBackupCompleteCheck = flag.Bool("skipBackupCompleteCheck", false, "Whether to skip checking for 'backup complete' file in -src. This may be useful for restoring from old backups, which were created without 'backup complete' file")
|
|
)
|
|
|
|
func main() {
|
|
// Write flags and help message to stdout, since it is easier to grep or pipe.
|
|
flag.CommandLine.SetOutput(os.Stdout)
|
|
flag.Usage = usage
|
|
envflag.Parse()
|
|
pushmetrics.Init()
|
|
buildinfo.Init()
|
|
logger.Init()
|
|
|
|
go httpserver.Serve(*httpListenAddr, nil)
|
|
|
|
srcFS, err := newSrcFS()
|
|
if err != nil {
|
|
logger.Fatalf("%s", err)
|
|
}
|
|
dstFS, err := newDstFS()
|
|
if err != nil {
|
|
logger.Fatalf("%s", err)
|
|
}
|
|
a := &actions.Restore{
|
|
Concurrency: *concurrency,
|
|
Src: srcFS,
|
|
Dst: dstFS,
|
|
SkipBackupCompleteCheck: *skipBackupCompleteCheck,
|
|
}
|
|
if err := a.Run(); err != nil {
|
|
logger.Fatalf("cannot restore from backup: %s", err)
|
|
}
|
|
srcFS.MustStop()
|
|
dstFS.MustStop()
|
|
|
|
startTime := time.Now()
|
|
logger.Infof("gracefully shutting down http server for metrics at %q", *httpListenAddr)
|
|
if err := httpserver.Stop(*httpListenAddr); err != nil {
|
|
logger.Fatalf("cannot stop http server for metrics: %s", err)
|
|
}
|
|
logger.Infof("successfully shut down http server for metrics in %.3f seconds", time.Since(startTime).Seconds())
|
|
}
|
|
|
|
func usage() {
|
|
const s = `
|
|
vmrestore restores VictoriaMetrics data from backups made by vmbackup.
|
|
|
|
See the docs at https://docs.victoriametrics.com/vmrestore.html .
|
|
`
|
|
flagutil.Usage(s)
|
|
}
|
|
|
|
func newDstFS() (*fslocal.FS, error) {
|
|
if len(*storageDataPath) == 0 {
|
|
return nil, fmt.Errorf("`-storageDataPath` cannot be empty")
|
|
}
|
|
fs := &fslocal.FS{
|
|
Dir: *storageDataPath,
|
|
MaxBytesPerSecond: maxBytesPerSecond.N,
|
|
}
|
|
if err := fs.Init(); err != nil {
|
|
return nil, fmt.Errorf("cannot initialize local fs: %w", err)
|
|
}
|
|
return fs, nil
|
|
}
|
|
|
|
func newSrcFS() (common.RemoteFS, error) {
|
|
fs, err := actions.NewRemoteFS(*src)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("cannot parse `-src`=%q: %w", *src, err)
|
|
}
|
|
return fs, nil
|
|
}
|