Redis迁移键

迁移键：

move key db 用于在Redis内部进行数据迁移

dump key + restore key ttl value 可以实现在不同的Redis实例之间进行数据迁移

127.0.0.1:6379> dump name

"\x00\x05allen\a\x00\x82\x9a*T/\xb9\x9b\x87"

127.0.0.1:6379> dump age

"\x00\xc0!\a\x006.9\xfaQ\x06\xe8\r"

127.0.0.1:6379> dump pass

"\x00\x06abc123\a\x00\x90\t\xe8\x1b\xf2\xd4\x8b\xec"

192.168.1.122:6379> restore name 0 "\x00\x05allen\a\x00\x82\x9a*T/\xb9\x9b\x87"

OK

192.168.1.122:6379> restore age 0 "\x00\xc0!\a\x006.9\xfaQ\x06\xe8\r"

OK

192.168.1.122:6379> restore pass 0 "\x00\x06abc123\a\x00\x90\t\xe8\x1b\xf2\xd4\x8b\xec"

OK

migrate host port key|"" destination-db timeout [copy] [replace] [keys key [key ...]]

127.0.0.1:6379> migrate 192.168.1.122 6379 name 0 5000  默认是删除源库的键值

OK

127.0.0.1:6379> migrate 192.168.1.122 6379 "" 0 5000 copy keys age pass  加copy和replace源库不删除键值

OK

# cat redis_mv.sh

#!/bin/bash

redis-cli -h 172.20.0.1 -p 6379 -a password -n 0 keys "*" | while read key

do

redis-cli -h 172.20.0.1 -p 6379 -a password -n 0 --raw dump $key | perl -pe 'chomp if eof' | redis-cli -h 172.20.0.2 -p 6379 -a password -n 1 -x restore $key 0

echo "migrate key $key"

done

#!/bin/bash

#redis 源ip

src_ip=192.168.0.1

#redis 源port

src_port=6379

#redis 源库

src_db=11

#redis 目的ip

dest_ip=192.168.0.1

#redis 目的port

dest_port=6379

#redis 目的

dest_db=6

#redis 密码

pw=123456

#要迁移的key前缀

#key_prefix=com.example.test

redis-cli -h $src_ip -p $src_port -a $pw -n $src_db keys "*" | while read key

do

redis-cli -h $src_ip -p $src_port -a $pw -n $src_db --raw dump $key | perl -pe 'chomp if eof' | redis-cli -h $dest_ip -p $dest_port -a $pw -n $dest_db -x restore $key 0

echo "migrate key $key"

done

#!/bin/bash

#redis 源ip

src_ip=192.168.0.1

#redis 源port

src_port=6379

#redis 源库

src_db=1

#redis 目的ip

dest_ip=192.168.0.1

#redis 目的port

dest_port=6379

#redis 目的

dest_db=3

#redis 密码

pw=123456

#要遍历的key

k=(medical_record:id medical_record_attachment:id patient_family_present:id patient_present:id patient_disease:id family_disease:id patient_allergy:id history_allergy:id)

#要迁移的key前缀

#key_prefix=com.example.test

for loop in ${k[*]}

do

redis-cli -h $src_ip -p $src_port -a $pw -n $src_db --raw dump $loop | perl -pe 'chomp if eof' | redis-cli -h $dest_ip -p $dest_port -a $pw -n $dest_db -x restore $loop 0

echo "The value is: $loop"

done