Backup SSDB(export/import)

Backup with ssdb-cli

Use ssdb-cli to connect to a ssdb server.

Export

Export the whole database:

# backup current database into file backup.ssdb
ssdb 127.0.0.1:8888> export backup.ssdb

Export by key range(interactive mode):

ssdb 127.0.0.1:8888> export -i backup.ssdb
input KV range[start, end]:
  start(inclusive, default none): a
	end(inclusive, default none): z
input HASH range:
  start(inclusive, default none):
	end(inclusive, default none):
input ZSET range:
  start(inclusive, default none):
	end(inclusive, default none):
input QUEUE range:
  start(inclusive, default none):
	end(inclusive, default none):

The command export -i backup.ssdb will export KV in range[a, z], all HASH, ZSET, QUEUE.

Import

# import backup.ssdb into current database
ssdb 127.0.0.1:8888> import backup.ssdb

Notice The import command will replace existing key(s).

Backup with ssdb-dump

The ssdb-dump tool is for data backup of a SSDB instance.

Export

Usage:

./tools/ssdb-dump ip port output_folder

Options:

• ip - ssdb server ip address
• port - ssdb server port number
• output_folder - local backup folder that will be created

Example:

./tools/ssdb-dump 127.0.0.1 8888 ./output_folder

The output_folder must not exist, it will be created by ssdb-dump. And there are two folders in it, a data folder contains data, and an empty folder meta.

Recover

Copy the folder output_folder to your server, you may want to rename it. Update your ssdb.conf, point work_dir to your output_folder, then restart ssdb-server.