rdb_en.md

RDB command

• RDB command
  • Replay RDB file to redis
  • Parse RDB file and print key/value

Replay RDB file to redis

RDB command can load RDB file to a running redis server or redis cluster, and filter data by policies.

We launch it with a configuration file.

./redisGunYu -cmd=rdb -conf=config/rdb_load.yaml

It parse /tmp/test.rdb file and load data into the redis cluster(127.0.0.1:6379,127.0.0.1:6479), ignore DB 1 and the keys of test_ignore prefix.

It can be launched with command line argument.

./redisGunYu -cmd=rdb -rdb.action=load -rdb.rdbPath=/tmp/test.rdb -rdb.load.redis.addresses=127.0.0.1:6379,127.0.0.1:6479 -rdb.load.redis.type=cluster -rdb.load.filter.dbBlacklist=1 -rdb.load.filter.keyFilter.prefixKeyBlacklist=test_ignore

Configuration

Configuration sections

• action : sub command
• rdbPath : RDB file path
• load :
  • redis : refer to redis configuration
  • replay : refer to replay configuration
  • filter : refer to filter configuration

A demo configuration

action: load
rdbPath: /tmp/test.rdb
load:
  redis:
    addresses: [127.0.0.1:6379,127.0.0.1:6479]
    type: cluster
  filter:
    dbBlacklist: 1
    keyFilter:
      prefixKeyBlacklist: test_ignore

Parse RDB file and print key/value

Parse /tmp/dump.rdb, and print to stdout

./redisGunYu -cmd=rdb -rdb.action=print -rdb.rdbPath=/tmp/dump.rdb

Configuration

Configurations:

• action : sub command
• rdbPath : RDB file path
• print :
  • output : output file, default is stdout
  • noLogKey : don't print key, default value is false
  • noLogValue : don't print value, default value is false

Demo

./redisGunYu -cmd=rdb -rdb.action=print -rdb.rdbPath=/tmp/dump.rdb -rdb.print.output=/tmp/rdb.log -rdb.print.noLogKey=true -rdb.print.noLogValue=true