Backup and Restore
This page documents an earlier version of InfluxDB. InfluxDB v2.2 is the latest stable version.
InfluxDB has the ability to snapshot an instance at a point-in-time and restore it. All backups are full backups. InfluxDB does not yet support incremental backups. There are two types of data to backup, the metastore and the metrics themselves. The metastore is backed up in its entirety. The metrics are backed up per-database in a separate operation from the metastore backup.
Note: Backups are not interchangeable between InfluxDB OSS and InfluxDB Enterprise. You cannot restore an OSS backup to an InfluxDB Enterprise data node, nor can you restore an InfluxDB Enterprise backup to an OSS instance.
If you are working with an InfluxDB Enterprise cluster, please see the Backup and Restore Guide in the InfluxDB Enterprise documentation.
Backing up the Metastore
InfluxDB’s metastore contains internal information about the status of the system, including user information, database/shard metadata, CQs, RPs, and subscriptions. While a node is running, you can create a backup of your instance’s metastore by running the command:
influxd backup <path-to-backup>
path-to-backup can be replaced with the directory where you
would like the backup to be written to. Without any other arguments,
the backup will only record the current state of the system
metastore. For example, the command:
$ influxd backup /tmp/backup 2016/02/01 17:15:03 backing up metastore to /tmp/backup/meta.00 2016/02/01 17:15:03 backup complete
Will create a metastore backup in the directory
directory will be created if it doesn’t already exist).
Backing up a Database
Each database must be backed up individually.
To backup a database, you will need to add the
influxd backup -database <mydatabase> <path-to-backup>
mydatabase is the name of the database you would like to
path-to-backup is where the backup data should be
stored. Optional flags also include:
-retention <retention policy name>- This flag can be used to backup a specific retention policy. For more information on retention policies, please see here. If not specified, all retention policies will be backed up.
-shard <shard ID>- This flag can be used to backup a specific shard ID. To see which shards are available, you can run the command
SHOW SHARDSusing the InfluxDB query language. If not specified, all shards will be backed up.
-since <date>- This flag can be used to create a backup since a specific date, where the date must be in RFC3339 format (for example,
2015-12-24T08:12:23Z). This flag is important if you would like to take incremental backups of your database. If not specified, all timeranges within the database will be backed up.
Note: Metastore backups are also included in per-database backups
As a real-world example, you can take a backup of the
retention policy for the
telegraf database since midnight UTC on
February 1st, 2016 by using the command:
$ influxd backup -database telegraf -retention autogen -since 2016-02-01T00:00:00Z /tmp/backup 2016/02/01 18:02:36 backing up rp=default since 2016-02-01 00:00:00 +0000 UTC 2016/02/01 18:02:36 backing up metastore to /tmp/backup/meta.01 2016/02/01 18:02:36 backing up db=telegraf rp=default shard=2 to /tmp/backup/telegraf.default.00002.01 since 2016-02-01 00:00:00 +0000 UTC 2016/02/01 18:02:36 backup complete
Which will send the resulting backup to
/tmp/backup, where it can
then be compressed and sent to long-term storage.
To capture a backup from a remote node:
1. Uncomment the
bind-address configuration setting on the remote node
2. Update the
bind-address setting to
3. Run the following command from your local node:
$ influxd backup -database mydatabase -host <remote-node-IP>:8088 /tmp/mysnapshot
To restore a backup, you will need to use the
influxd restore command.
Note: Restoring from backup is only supported while the InfluxDB daemon is stopped.
To restore from a backup you will need to specify the type of backup, the path to where the backup should be restored, and the path to the backup. The command:
influxd restore [ -metadir | -datadir ] <path-to-meta-or-data-directory> <path-to-backup>
The required flags for restoring a backup are:
-metadir <path-to-meta-directory>- This is the path to the meta directory where you would like the metastore backup recovered to. For packaged installations, this should be specified as
-datadir <path-to-data-directory>- This is the path to the data directory where you would like the database backup recovered to. For packaged installations, this should be specified as
The optional flags for restoring a backup are:
-database <database>- This is the database that you would like to restore the data to. This option is required if no
-metadiroption is provided.
-retention <retention policy>- This is the target retention policy for the stored data to be restored to.
-shard <shard id>- This is the shard data that should be restored. If specified,
-retentionmust also be set.
Following the backup example above, the backup can be restored in two steps. First, the metastore needs to be restored so that InfluxDB knows which databases exist:
$ influxd restore -metadir /var/lib/influxdb/meta /tmp/backup Using metastore snapshot: /tmp/backup/meta.00
Once the metastore has been restored, we can now recover the backed up
data. In the real-world example above, we backed up the
/tmp/backup, so let’s restore that same dataset. To
$ influxd restore -database telegraf -datadir /var/lib/influxdb/data /tmp/backup Restoring from backup /tmp/backup/telegraf.* unpacking /var/lib/influxdb/data/telegraf/default/2/000000004-000000003.tsm unpacking /var/lib/influxdb/data/telegraf/default/2/000000005-000000001.tsm
Note: Once the backed up data has been recovered, the permissions on the shards may no longer be accurate. To ensure the file permissions are correct, please run:
$ sudo chown -R influxdb:influxdb /var/lib/influxdb
Once the data and metastore are recovered, it’s time to start the database:
$ service influxdb start
As a quick check, we can verify the database is known to the metastore
by running a
SHOW DATABASES command:
influx -execute 'show databases' name: databases --------------- name _internal telegraf
The database has now been successfully restored!
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