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105 lines
5.3 KiB
Markdown
105 lines
5.3 KiB
Markdown
## vmrestore
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`vmrestore` restores data from backups created by [vmbackup](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/app/vmbackup/README.md).
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VictoriaMetrics `v1.29.0` and newer versions must be used for working with the restored data.
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Restore process can be interrupted at any time. It is automatically resumed from the inerruption point
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when restarting `vmrestore` with the same args.
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### Usage
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VictoriaMetrics must be stopped during the restore process.
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```
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vmrestore -src=gcs://<bucket>/<path/to/backup> -storageDataPath=<local/path/to/restore>
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```
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* `<bucket>` is [GCS bucket](https://cloud.google.com/storage/docs/creating-buckets) name.
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* `<path/to/backup>` is the path to backup made with [vmbackup](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/app/vmbackup/README.md) on GCS bucket.
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* `<local/path/to/restore>` is the path to folder where data will be restored. This folder must be passed
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to VictoriaMetrics in `-storageDataPath` command-line flag after the restore process is complete.
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The original `-storageDataPath` directory may contain old files. They will be susbstituted by the files from backup.
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### Troubleshooting
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* If `vmrestore` eats all the network bandwidth, then set `-maxBytesPerSecond` to the desired value.
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* If `vmrestore` has been interrupted due to temporary error, then just restart it with the same args. It will resume the restore process.
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### Advanced usage
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Run `vmrestore -help` in order to see all the available options:
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```
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-concurrency int
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The number of concurrent workers. Higher concurrency may reduce restore duration (default 10)
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-configFilePath string
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Path to file with S3 configs. Configs are loaded from default location if not set.
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See https://docs.aws.amazon.com/general/latest/gr/aws-security-credentials.html
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-configProfile string
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Profile name for S3 configs (default "default")
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-credsFilePath string
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Path to file with GCS or S3 credentials. Credentials are loaded from default locations if not set.
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See https://cloud.google.com/iam/docs/creating-managing-service-account-keys and https://docs.aws.amazon.com/general/latest/gr/aws-security-credentials.html
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-customS3Endpoint string
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Custom S3 endpoint for use with S3-compatible storages (e.g. MinIO). S3 is used if not set
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-envflag.enable
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Whether to enable reading flags from environment variables additionally to command line. Command line flag values have priority over values from environment vars. Flags are read only from command line if this flag isn't set
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-envflag.prefix string
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Prefix for environment variables if -envflag.enable is set
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-fs.disableMmap
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Whether to use pread() instead of mmap() for reading data files
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-loggerFormat string
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Format for logs. Possible values: default, json (default "default")
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-loggerLevel string
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Minimum level of errors to log. Possible values: INFO, WARN, ERROR, FATAL, PANIC (default "INFO")
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-loggerOutput string
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Output for the logs. Supported values: stderr, stdout (default "stderr")
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-maxBytesPerSecond int
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The maximum download speed. There is no limit if it is set to 0
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-memory.allowedPercent float
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Allowed percent of system memory VictoriaMetrics caches may occupy. Too low value may increase cache miss rate, which usually results in higher CPU and disk IO usage. Too high value may evict too much data from OS page cache, which will result in higher disk IO usage (default 60)
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-skipBackupCompleteCheck
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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
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-src string
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Source path with backup on the remote storage. Example: gcs://bucket/path/to/backup/dir, s3://bucket/path/to/backup/dir or fs:///path/to/local/backup/dir
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-storageDataPath string
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Destination path where backup must be restored. VictoriaMetrics must be stopped when restoring from backup. -storageDataPath dir can be non-empty. In this case only missing data is downloaded from backup (default "victoria-metrics-data")
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-version
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Show VictoriaMetrics version
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```
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### How to build from sources
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It is recommended using [binary releases](https://github.com/VictoriaMetrics/VictoriaMetrics/releases) - see `vmutils-*` archives there.
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#### Development build
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1. [Install Go](https://golang.org/doc/install). The minimum supported version is Go 1.13.
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2. Run `make vmrestore` from the root folder of the repository.
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It builds `vmrestore` binary and puts it into the `bin` folder.
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#### Production build
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1. [Install docker](https://docs.docker.com/install/).
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2. Run `make vmrestore-prod` from the root folder of the repository.
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It builds `vmrestore-prod` binary and puts it into the `bin` folder.
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#### Building docker images
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Run `make package-vmrestore`. It builds `victoriametrics/vmrestore:<PKG_TAG>` docker image locally.
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`<PKG_TAG>` is auto-generated image tag, which depends on source code in the repository.
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The `<PKG_TAG>` may be manually set via `PKG_TAG=foobar make package-vmrestore`.
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By default the image is built on top of `scratch` image. It is possible to build the package on top of any other base image
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by setting it via `<ROOT_IMAGE>` environment variable. For example, the following command builds the image on top of `alpine:3.11` image:
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```bash
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ROOT_IMAGE=alpine:3.11 make package-vmrestore
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```
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