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1、备份元数据
基本语法:
influxd backup <path-to-backup>
备份元数据,没有任何其他参数,备份将只转移当前状态的系统元数据到path-to-backup
。path-to-backup
为备份保存的目录,不存在会自动创建。
该备份会备份所有数据库以及所有保存策略下得数据。
导出常用得其他参数:
root@704be48ac1bc:/# influxd backup -h
Creates a backup copy of specified InfluxDB OSS database(s) and saves the files in an Enterprise-compatible
format to PATH (directory where backups are saved).
Usage: influxd backup [options] PATH
-portable
Required to generate backup files in a portable format that can be restored to InfluxDB OSS or InfluxDB
Enterprise. Use unless the legacy backup is required.
-host <host:port>
InfluxDB OSS host to back up from. Optional. Defaults to 127.0.0.1:8088.
-db <name>
InfluxDB OSS database name to back up. Optional. If not specified, all databases are backed up when
using '-portable'.
-rp <name>
Retention policy to use for the backup. Optional. If not specified, all retention policies are used by
default.
-shard <id>
The identifier of the shard to back up. Optional. If specified, '-rp <rp_name>' is required.
-start <2015-12-24T08:12:23Z>
Include all points starting with specified timestamp (RFC3339 format).
Not compatible with '-since <timestamp>'.
-end <2015-12-24T08:12:23Z>
Exclude all points after timestamp (RFC3339 format).
Not compatible with '-since <timestamp>'.
-since <2015-12-24T08:12:23Z>
Create an incremental backup of all points after the timestamp (RFC3339 format). Optional.
Recommend using '-start <timestamp>' instead.
-skip-errors
Optional flag to continue backing up the remaining shards when the current shard fails to backup.
backup: flag: help requested
具体如下:
Usage: influxd backup [options] PATH
-portable # 在线备份,必选
-host <host:port> # 需要备份的influxdb服务机器地址,可选,Defaults to 127.0.0.1:8088.
-db <name> # 需要备份的db名称,可选,若没有指定,将备份所有数据库
-rp <name> # 备份某个保留策略的数据,未指定,则备份所有rp的数据。
-shard <id> # 需要备份的shard id,可选,若指定了备份shard,必须先选择rp
-start # 需要备份的数据的起始时间,timestamp (RFC3339 format). 不能和-since一起使用
-end # 需要备份的数据的结束时间,timestamp (RFC3339 format). 不能和-since一起使用
-since # 备份这个timestamp之后的数据,建议用-start <timestamp>代替
-skip-errors # 可选,当备份shards时,跳过备份失败的shard,继续备份其他shard。
2.influxdb导入
1.先删除数据库
2.导入备份数据:
这种方式只能导入按个数据库进行导入;
3.导入其他配置项参数:
root@704be48ac1bc:/# influxd restore -h
Uses backup copies from the specified PATH to restore databases or specific shards from InfluxDB OSS
or InfluxDB Enterprise to an InfluxDB OSS instance.
Usage: influxd restore -portable [options] PATH
Note: Restore using the '-portable' option consumes files in an improved Enterprise-compatible
format that includes a file manifest.
Options:
-portable
Required to activate the portable restore mode. If not specified, the legacy restore mode is used.
-host <host:port>
InfluxDB OSS host to connect to where the data will be restored. Defaults to '127.0.0.1:8088'.
-db <name>
Name of database to be restored from the backup (InfluxDB OSS or InfluxDB Enterprise)
-newdb <name>
Name of the InfluxDB OSS database into which the archived data will be imported on the target system.
Optional. If not given, then the value of '-db <db_name>' is used. The new database name must be unique
to the target system.
-rp <name>
Name of retention policy from the backup that will be restored. Optional.
Requires that '-db <db_name>' is specified.
-newrp <name>
Name of the retention policy to be created on the target system. Optional. Requires that '-rp <rp_name>'
is set. If not given, the '-rp <rp_name>' value is used.
-shard <id>
Identifier of the shard to be restored. Optional. If specified, then '-db <db_name>' and '-rp <rp_name>' are
required.
PATH
Path to directory containing the backup files.
restore: flag: help requested
主要作用:
Usage: influxd restore -portable [options] PATH
Options:
-portable #
-host <host:port>
-db <name> # 从备份数据的哪个库恢复数据Name of database to be restored from the backup
-newdb <name>
# 数据恢复到新库名称,若没有指定,选择-db <name>的名称。newdb必须不存在,恢复时会自动创建
-rp <name> # 从备份数据的哪个rp恢复数据,指定了-rp,必须指定-db
-newrp <name> #恢复数据新的rp名称,newrp必须存在。指定了-rp,未指定-newrp则使用-rp
-shard <id> # 需要恢复的shard,如果指定了'-db <db_name>' and '-rp <rp_name>',必须-shard<id>
PATH #备份数据文件list
4.第二种导入方式:
删除influxdb数据库存储得元数据文件,将influxdb得数据库元文件目录指定为备份得目录,然后再重启influxdb数据库即可完成导入
influxd restore -metadir <path-to-meta-or-data-directory> <path-to-backup>
从/var/lib/influxdb/ 目录下删除meta目录,即 rm -rf /var/lib/influxdb/meta
,然后重启influxdb
,service influxdb restart
。