redis 迁移工具 redisshake

Redis-shake is a tool for synchronizing data between two redis databases.

GitHub地址:https://github.com/alibaba/RedisShake

1、下载并安装

wget -c https://github.com/alibaba/RedisShake/releases/download/release-v1.6.24-20191220/redis-shake-1.6.24.tar.gz

tar -zxvf  redis-shake-1.6.24.tar.gz

cd  redis-shake-1.6.24.tar.gz

2、配置文件 vim redis-shake.conf

# this is the configuration of redis-shake.
# if you have any problem, please visit https://github.com/alibaba/RedisShake/wiki/FAQ

# id
id = redis-shake

# log file，日志文件，不配置将打印到stdout (e.g. /var/log/redis-shake.log )
log.file = /data/db_tools/soft/redis/redis-shake-1.6.24/redis-shake-new.log
# log level: "none", "error", "warn", "info", "debug", "all". default is "info". "debug" == "all"
log.level = info
# pid path，进程文件存储地址（e.g. /var/run/)，不配置将默认输出到执行下面,
# 注意这个是目录，真正的pid是`{pid_path}/{id}.pid`
pid_path = 

# pprof port.
system_profile = 9310
# restful port, set -1 means disable, in `restore` mode RedisShake will exit once finish restoring RDB only if this value
# is -1, otherwise, it'll wait forever.
# restful port，查看metric端口, -1表示不启用，如果是`restore`模式，只有设置为-1才会在完成RDB恢复后退出，否则会一直block。
http_profile = 9320

# parallel routines number used in RDB file syncing. default is 64.
# 启动多少个并发线程同步一个RDB文件。
parallel = 4

# source redis configuration.
# used in `dump`, `sync` and `rump`.
# source redis type, e.g. "standalone" (default), "sentinel" or "cluster".
#   1. "standalone": standalone db mode.
#   2. "sentinel": the redis address is read from sentinel.
#   3. "cluster": the source redis has several db.
#   4. "proxy": the proxy address, currently, only used in "rump" mode.
# 源端redis的类型，支持standalone，sentinel，cluster和proxy四种模式，注意：目前proxy只用于rump模式。
source.type = standalone
# ip:port
# the source address can be the following:
#   1. single db address. for "standalone" type.
#   2. ${sentinel_master_name}:${master or slave}@sentinel single/cluster address, e.g., mymaster:master@127.0.0.1:26379;127.0.0.1:26380, or @127.0.0.1:26379;127.0.0.1:26380. for "sentinel" type.
#   3. cluster that has several db nodes split by semicolon(;). for "cluster" type. e.g., 10.1.1.1:20331;10.1.1.2:20441.
#   4. proxy address(used in "rump" mode only). for "proxy" type.
# 源redis地址。对于sentinel或者开源cluster模式，输入格式为"master名字:拉取角色为master或者slave@sentinel的地址"，别的cluster
# 架构，比如codis, twemproxy, aliyun proxy等需要配置所有master或者slave的db地址。
source.address = source_ip:6381
# password of db/proxy. even if type is sentinel.
source.password_raw = AComCdgN09srE
# auth type, don't modify it
source.auth_type = auth
# tls enable, true or false. Currently, only support standalone.
# open source redis does NOT support tls so far, but some cloud versions do.
source.tls_enable = false
# input RDB file.
# used in `decode` and `restore`.
# if the input is list split by semicolon(;), redis-shake will restore the list one by one.
# 如果是decode或者restore，这个参数表示读取的rdb文件。支持输入列表，例如：rdb.0;rdb.1;rdb.2
# redis-shake将会挨个进行恢复。
source.rdb.input = local
# the concurrence of RDB syncing, default is len(source.address) or len(source.rdb.input).
# used in `dump`, `sync` and `restore`. 0 means default.
# This is useless when source.type isn't cluster or only input is only one RDB.
# 拉取的并发度，如果是`dump`或者`sync`，默认是source.address中db的个数，`restore`模式默认len(source.rdb.input)。
# 假如db节点/输入的rdb有5个，但rdb.parallel=3，那么一次只会
# 并发拉取3个db的全量数据，直到某个db的rdb拉取完毕并进入增量，才会拉取第4个db节点的rdb，
# 以此类推，最后会有len(source.address)或者len(rdb.input)个增量线程同时存在。
source.rdb.parallel = 0
# for special cloud vendor: ucloud
# used in `decode` and `restore`.
# ucloud集群版的rdb文件添加了slot前缀，进行特判剥离: ucloud_cluster。
source.rdb.special_cloud = 

# target redis configuration. used in `restore`, `sync` and `rump`.
# the type of target redis can be "standalone", "proxy" or "cluster".
#   1. "standalone": standalone db mode.
#   2. "sentinel": the redis address is read from sentinel.
#   3. "cluster": open source cluster (not supported currently).
#   4. "proxy": proxy layer ahead redis. Data will be inserted in a round-robin way if more than 1 proxy given.
# 目的redis的类型，支持standalone，sentinel，cluster和proxy四种模式。
target.type = cluster
# ip:port
# the target address can be the following:
#   1. single db address. for "standalone" type.
#   2. ${sentinel_master_name}:${master or slave}@sentinel single/cluster address, e.g., mymaster:master@127.0.0.1:26379;127.0.0.1:26380, or @127.0.0.1:26379;127.0.0.1:26380. for "sentinel" type.
#   3. cluster that has several db nodes split by semicolon(;). for "cluster" type.
#   4. proxy address(used in "rump" mode only). for "proxy" type.
target.address = target_cluster-01_ip:6379;target_cluster-02_ip:6379;target_cluster-03_ip:6379
# password of db/proxy. even if type is sentinel.
target.password_raw = AComCdgN09srE
# auth type, don't modify it
target.auth_type = auth
# all the data will be written into this db. < 0 means disable.
target.db = -1
# tls enable, true or false. Currently, only support standalone.
# open source redis does NOT support tls so far, but some cloud versions do.
target.tls_enable = false
# output RDB file prefix.
# used in `decode` and `dump`.
# 如果是decode或者dump，这个参数表示输出的rdb前缀，比如输入有3个db，那么dump分别是:
# ${output_rdb}.0, ${output_rdb}.1, ${output_rdb}.2
target.rdb.output = local_dump
# some redis proxy like twemproxy doesn't support to fetch version, so please set it here.
# e.g., target.version = 4.0
target.version =

# use for expire key, set the time gap when source and target timestamp are not the same.
# 用于处理过期的键值，当迁移两端不一致的时候，目的端需要加上这个值
fake_time =

# force rewrite when destination restore has the key
# used in `restore`, `sync` and `rump`.
# 当源目的有重复key，是否进行覆写
rewrite = true

# filter db, key, slot, lua.
# filter db.
# used in `restore`, `sync` and `rump`.
# e.g., "0;5;10" means match db0, db5 and db10.
# at most one of `filter.db.whitelist` and `filter.db.blacklist` parameters can be given.
# if the filter.db.whitelist is not empty, the given db list will be passed while others filtered.
# if the filter.db.blacklist is not empty, the given db list will be filtered while others passed.
# all dbs will be passed if no condition given.
# 指定的db被通过，比如0;5;10将会使db0, db5, db10通过, 其他的被过滤
filter.db.whitelist =
# 指定的db被过滤，比如0;5;10将会使db0, db5, db10过滤，其他的被通过
filter.db.blacklist =
# filter key with prefix string. multiple keys are separated by ';'.
# e.g., "abc;bzz" match let "abc", "abc1", "abcxxx", "bzz" and "bzzwww".
# used in `restore`, `sync` and `rump`.
# at most one of `filter.key.whitelist` and `filter.key.blacklist` parameters can be given.
# if the filter.key.whitelist is not empty, the given keys will be passed while others filtered.
# if the filter.key.blacklist is not empty, the given keys will be filtered while others passed.
# all the namespace will be passed if no condition given.
# 支持按前缀过滤key，只让指定前缀的key通过，分号分隔。比如指定abc，将会通过abc, abc1, abcxxx
filter.key.whitelist =
# 支持按前缀过滤key，不让指定前缀的key通过，分号分隔。比如指定abc，将会阻塞abc, abc1, abcxxx
filter.key.blacklist =
# filter given slot, multiple slots are separated by ';'.
# e.g., 1;2;3
# used in `sync`.
# 指定过滤slot，只让指定的slot通过
filter.slot =
# filter lua script. true means not pass. However, in redis 5.0, the lua 
# converts to transaction(multi+{commands}+exec) which will be passed.
# 控制不让lua脚本通过，true表示不通过
filter.lua = false

# big key threshold, the default is 500 * 1024 * 1024 bytes. If the value is bigger than
# this given value, all the field will be spilt and write into the target in order. If
# the target Redis type is Codis, this should be set to 1, please checkout FAQ to find 
# the reason.
# 正常key如果不大，那么都是直接调用restore写入到目的端，如果key对应的value字节超过了给定
# 的值，那么会分批依次一个一个写入。如果目的端是Codis，这个需要置为1，具体原因请查看FAQ。
# 如果目的端大版本小于源端，也建议设置为1。
big_key_threshold = 524288000

# use psync command.
# used in `sync`.
# 默认使用psync命令进行同步，置为false将会用sync命令进行同步，代码层面会自动识别2.8以前的版本改为sync。
psync = true

# enable metric
# used in `sync`.
# 是否启用metric
metric = true
# print in log
# 是否将metric打印到log中
metric.print_log = false

# sender information.
# sender flush buffer size of byte.
# used in `sync`.
# 发送缓存的字节长度，超过这个阈值将会强行刷缓存发送
sender.size = 104857600
# sender flush buffer size of oplog number.
# used in `sync`. flush sender buffer when bigger than this threshold.
# 发送缓存的报文个数，超过这个阈值将会强行刷缓存发送，对于目的端是cluster的情况，这个值
# 的调大将会占用部分内存。
sender.count = 4095
# delay channel size. once one oplog is sent to target redis, the oplog id and timestamp will also
# stored in this delay queue. this timestamp will be used to calculate the time delay when receiving
# ack from target redis.
# used in `sync`.
# 用于metric统计时延的队列
sender.delay_channel_size = 65535

# enable keep_alive option in TCP when connecting redis.
# the unit is second.
# 0 means disable.
# TCP keep-alive保活参数，单位秒，0表示不启用。
keep_alive = 0

# used in `rump`.
# number of keys captured each time. default is 100.
# 每次scan的个数，不配置则默认100.
scan.key_number = 50
# used in `rump`.
# we support some special redis types that don't use default `scan` command like alibaba cloud and tencent cloud.
# 有些版本具有特殊的格式，与普通的scan命令有所不同，我们进行了特殊的适配。目前支持腾讯云的集群版"tencent_cluster"
# 和阿里云的集群版"aliyun_cluster"。
scan.special_cloud =
# used in `rump`.
# we support to fetching data from given file which marks the key list.
# 有些云版本，既不支持sync/psync，也不支持scan，我们支持从文件中进行读取所有key列表并进行抓取：一行一个key。
scan.key_file =

# limit the rate of transmission. Only used in `rump` currently.
# e.g., qps = 1000 means pass 1000 keys per second. default is 500,000(0 means default)
qps = 200000

# ----------------splitter----------------
# below variables are useless for current open source version so don't set.

# replace hash tag.
# used in `sync`.
replace_hash_tag = false

3、启动

./redis-shake.linux -conf=redis-shake.conf -type=xxx  #xxx为sync、restore、dump、decode、rump，全量+增量为"sync"

4、数据的导入和导出

数据导出：
./redis-shake.linux -conf=redis-shake.conf -type=dump

数据导入：
./redis-shake.linux -conf=redis-shake.conf -type=restore
注意:
数据导入的时候需要配置要导入的类型与数据源
source.rdb.input = local_dump.0

5、通过redis-full-check验证数据同步完整性（源端或目标端为集群的话，每个集群地址通过(;)分割，前后都加上双引号("")）

github:https://github.com/alibaba/RedisFullChec

5.1 下载并安装

wget -c https://github.com/alibaba/RedisFullCheck/releases/download/release-v1.4.7-20191203/redis-full-check-1.4.7.tar.gz

tar -zxvf redis-full-check-1.4.7.tar.gz && cd redis-full-check-1.4.7.tar.gz

5.2 执行命令校验

./redis-full-check -s source_ip:6381 -p "AComCdgN09srE" -t "target_cluster-01_ip:6379;target_cluster-02_ip:6379;target_cluster-03_ip:6379" -a "AComCdgN09srE" --comparemode=1 --comparetimes=1 --qps=10 --batchcount=100 --sourcedbtype=0 --targetdbfilterlist=0 --targetdbtype=1
注意：
如果目标是集群的话,需要指定--targetdbtype 类型为1，源端是独立节点的话，需要指定--sourcedbtype=0

5.3 校验结果：

[INFO 2021-12-28-16:05:14 full_check.go:328]: --------------- finished! ----------------
all finish successfully, totally 0 key(s) and 0 field(s) conflict

5.4 执行查看命令：

sqlite3 result.db.1

5.5 查看异常表数据:

select * from key;

6、更多参数详解通过 ./redis-full-check --help 查看

部分参数详解：
-s 源端Redis的连接地址和端口，如果源端Redis为集群，每个集群地址间需要以半角分号（;）分割不同的连接地址，集群地址前后需要添加半角双引号（"），该选项必填。
-p 源端Redis的密码
-t 目的端Redis的连接地址和端口，如果目的Redis为集群版，每个集群地址间需要以半角分号（;）分割不同的连接地址，集群地址前后需要添加半角双引号（"），该选项必填。
-a 目的端Redis的密码。
--sourcedbtype  源库的类别： 0：单节点版、主从版；1：集群版；2：阿里云/腾讯云；例如：--sourcedbtype=1
--sourcedbfilterlist  源端Redis指定需要校验的DB；开源集群版Redis无需填写该选项；非开源集群版Redis不指定该选项表示校验所有DB；多个DB之间使用半角分号（;）连接；例如：--sourcedbfilterlist=0;1;2
--targetdbtype  目的库的类别：0：单节点版、主从版；1：集群版；2：阿里云/腾讯云 例如：--targetdbtype=0
--targetdbfilterlist  目的端Redis指定需要校验的DB；开源集群版Redis无需填写该选项；非开源集群版Redis不指定该选项表示校验所有DB；多个DB之间使用半角分号（;）连接；例如：--targetdbfilterlist=0;1;2
-d  异常数据列表保存的文件名称，默认为result.db
--comparetimes  校验次数：该选项不填则默认为3次；最小值为1；无最大值，建议不超过5次；--comparetimes=1
-m  校验模式：1：全量校验；2：仅校验value的长度；3：仅校验key是否存在；4：全量对比的情况下，忽略大key的比较
-qps  限速阈值  说明：最小值为1；最大值取决于服务器性能； 例如：--qps=10
--filterlist  需要比较的key列表，以竖线（|）分割；abc*：表示匹配所有abc开头的key；abc：表示仅匹配abc这个key ； 例如：--filterlist=abc*|efg|m*