待实例启动后，用同样的方式进行集群的构建。
root@5141467f762d:/data# redis-cli --cluster create 172.25.253.0:8000 172.25.253.0:8001 172.25.253.0:8002 172.25.253.0:8003 172.25.253.0:8004 172.25.253.0:8005 172.25.253.0:8006 172.25.253.0:8007 172.25.253.0:8008 172.25.253.0:8009 --cluster-replicas 1 -a 123456
Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe.
>>> Performing hash slots allocation on 10 nodes...
Master[0] -> Slots 0 - 3276
Master[1] -> Slots 3277 - 6553
Master[2] -> Slots 6554 - 9829
Master[3] -> Slots 9830 - 13106
Master[4] -> Slots 13107 - 16383
Adding replica 172.25.253.0:8006 to 172.25.253.0:8000
Adding replica 172.25.253.0:8007 to 172.25.253.0:8001
Adding replica 172.25.253.0:8008 to 172.25.253.0:8002
Adding replica 172.25.253.0:8009 to 172.25.253.0:8003
Adding replica 172.25.253.0:8005 to 172.25.253.0:8004
>>> Trying to optimize slaves allocation for anti-affinity
[WARNING] Some slaves are in the same host as their master
M: e360847d352d53946fe3d8df45eb85d345f5e03b 172.25.253.0:8000
slots:[0-3276] (3277 slots) master
M: 23a3550fdf50cb86a6d12d56627757318ea9ad67 172.25.253.0:8001
slots:[3277-6553] (3277 slots) master
M: 054e696ec5639f8bf68293f63a2d1e6507062e47 172.25.253.0:8002
slots:[6554-9829] (3276 slots) master
M: 4f9cc0b67da6a31ca9a1f596154d1d4e02932086 172.25.253.0:8003
slots:[9830-13106] (3277 slots) master
M: 708043e6b8b70953cc162b733d15be3fc951efca 172.25.253.0:8004
slots:[13107-16383] (3277 slots) master
S: c85a6dd73665472fdd76d83b78bf3093669b2c4e 172.25.253.0:8005
replicates 054e696ec5639f8bf68293f63a2d1e6507062e47
S: 478c2ad79e506106bc5471df3e545f4624c60b43 172.25.253.0:8006
replicates 23a3550fdf50cb86a6d12d56627757318ea9ad67
S: f9bad9c5b76e9609c16a503dbd9b23f4d62d5c9d 172.25.253.0:8007
replicates 708043e6b8b70953cc162b733d15be3fc951efca
S: 0c14761377ed09d955e06a8e7bcd8354494bc711 172.25.253.0:8008
replicates 4f9cc0b67da6a31ca9a1f596154d1d4e02932086
S: 236c13a695d926a2b739b90092de49a8089c30cc 172.25.253.0:8009
replicates e360847d352d53946fe3d8df45eb85d345f5e03b
Can I set the above configuration? (type 'yes' to accept): yes
>>> Nodes configuration updated
>>> Assign a different config epoch to each node
>>> Sending CLUSTER MEET messages to join the cluster
Waiting for the cluster to join
.
>>> Performing Cluster Check (using node 172.25.253.0:8000)
M: e360847d352d53946fe3d8df45eb85d345f5e03b 172.25.253.0:8000
slots:[0-3276] (3277 slots) master
1 additional replica(s)
M: 23a3550fdf50cb86a6d12d56627757318ea9ad67 172.25.253.0:8001
slots:[3277-6553] (3277 slots) master
1 additional replica(s)
S: c85a6dd73665472fdd76d83b78bf3093669b2c4e 172.25.253.0:8005
slots: (0 slots) slave
replicates 054e696ec5639f8bf68293f63a2d1e6507062e47
S: f9bad9c5b76e9609c16a503dbd9b23f4d62d5c9d 172.25.253.0:8007
slots: (0 slots) slave
replicates 708043e6b8b70953cc162b733d15be3fc951efca
S: 478c2ad79e506106bc5471df3e545f4624c60b43 172.25.253.0:8006
slots: (0 slots) slave
replicates 23a3550fdf50cb86a6d12d56627757318ea9ad67
S: 0c14761377ed09d955e06a8e7bcd8354494bc711 172.25.253.0:8008
slots: (0 slots) slave
replicates 4f9cc0b67da6a31ca9a1f596154d1d4e02932086
S: 236c13a695d926a2b739b90092de49a8089c30cc 172.25.253.0:8009
slots: (0 slots) slave
replicates e360847d352d53946fe3d8df45eb85d345f5e03b
M: 708043e6b8b70953cc162b733d15be3fc951efca 172.25.253.0:8004
slots:[13107-16383] (3277 slots) master
1 additional replica(s)
M: 054e696ec5639f8bf68293f63a2d1e6507062e47 172.25.253.0:8002
slots:[6554-9829] (3276 slots) master
1 additional replica(s)
M: 4f9cc0b67da6a31ca9a1f596154d1d4e02932086 172.25.253.0:8003
slots:[9830-13106] (3277 slots) master
1 additional replica(s)
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.
测试数据写入
我们需要给源集群写入测试数据，然后才能进行数据迁移。数据写入脚本如下：
for i in `seq 1000000`;
do
redis-cli -c -h 127.0.0.1 -p 7000 -a 123456 set k:$i v:$i
done
可以看出，上面的脚本共写入了1000000条数据。Redis集群会根据key的hash进行数据分区，如下：
此外，为了测试数据过滤功能，还额外写入了10W条其他key，如下：
Redis-Shake测试
首先，在github上下载最新的redis-shake-v2.0.3.tar.gz并解压。
/mnt/c/Users/wangy ? tar -xvf redis-shake-v2.0.3.tar.gz
./._redis-shake-v2.0.3
./redis-shake-v2.0.3/
./redis-shake-v2.0.3/._.DS_Store
./redis-shake-v2.0.3/.DS_Store
./redis-shake-v2.0.3/ChangeLog
./redis-shake-v2.0.3/redis-shake.linux
./redis-shake-v2.0.3/redis-shake.conf
./redis-shake-v2.0.3/redis-shake.windows
./redis-shake-v2.0.3/._stop.sh
./redis-shake-v2.0.3/stop.sh
./redis-shake-v2.0.3/._start.sh
./redis-shake-v2.0.3/start.sh
./redis-shake-v2.0.3/redis-shake.darwin
打开其中的redis-shake.conf进行修改，下面仅列出与本次测试相关的配置项。
# 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 = cluster
# 源redis地址。
source.address = 172.25.253.0:7002;172.25.253.0:7000;172.25.253.0:7001;172.25.253.0:7003;172.25.253.0:7040;172.25.253.0:7005
# password of db/proxy. even if type is sentinel.
source.password_raw = 123456
# auth type, don't modify it
source.auth_type = auth
# 目的redis的类型，支持standalone，sentinel，cluster和proxy四种模式。
target.type = cluster
target.address = 172.25.253.0:8000;172.25.253.0:8001;172.25.253.0:8002;172.25.253.0:8003;172.25.253.0:8004
# password of db/proxy. even if type is sentinel.
target.password_raw = 123456
# auth type, don't modify it
target.auth_type = auth
# 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 = k:
配置好之后，使用下面的命令启动：
/mnt/c/Users/wangy/redis-shake-v2.0.3 ? ./redis-shake.linux -type=sync -conf=redis-shake.conf
2021/03/20 15:55:10 [WARN] source.auth_type[auth] != auth
2021/03/20 15:55:10 [WARN] target.auth_type[auth] != auth
2021/03/20 15:55:10 [INFO] the target redis type is cluster, only pass db0
2021/03/20 15:55:10 [INFO] source rdb[172.25.253.0:7002] checksum[yes]
2021/03/20 15:55:10 [INFO] source rdb[172.25.253.0:7000] checksum[yes]
2021/03/20 15:55:10 [INFO] source rdb[172.25.253.0:7001] checksum[yes]
2021/03/20 15:55:10 [WARN]
______________________________
\ \ _ ______ |
\ \ / \___-=O'/|O'/__|
\ RedisShake, here we go !! \_______\ / | / )
/ / '/-==__ _/__|/__=-| -GM
/ Alibaba Cloud / * \ | |
/ / (o)
------------------------------
if you have any problem, please visit https://github.com/alibaba/RedisShake/wiki/FAQ
2021/03/20 15:55:10 [INFO] redis-shake configuration: {"ConfVersion":1,"Id":"redis-shake","LogFile":"","LogLevel":"info","SystemProfile":9310,"HttpProfile":9320,"Parallel":32,"SourceType":"cluster","SourceAddress":"172.25.253.0:7002;172.25.253.0:7000;172.25.253.0:7001","SourcePasswordRaw":"***","SourcePasswordEncoding":"***","SourceAuthType":"auth","SourceTLSEnable":false,"SourceRdbInput":["local"],"SourceRdbParallel":3,"SourceRdbSpecialCloud":"","TargetAddress":"172.25.253.0:8000;172.25.253.0:8001;172.25.253.0:8002;172.25.253.0:8003;172.25.253.0:8004","TargetPasswordRaw":"***","TargetPasswordEncoding":"***","TargetDBString":"-1","TargetAuthType":"auth","TargetType":"cluster","TargetTLSEnable":false,"TargetRdbOutput":"local_dump","TargetVersion":"5.0.12","FakeTime":"","KeyExists":"none","FilterDBWhitelist":["0"],"FilterDBBlacklist":[],"FilterKeyWhitelist":[],"FilterKeyBlacklist":[],"FilterSlot":[],"FilterLua":false,"BigKeyThreshold":524288000,"Metric":true,"MetricPrintLog":false,"SenderSize":104857600,"SenderCount":4095,"SenderDelayChannelSize":65535,"KeepAlive":0,"PidPath":"","ScanKeyNumber":50,"ScanSpecialCloud":"","ScanKeyFile":"","Qps":200000,"ResumeFromBreakPoint":false,"Psync":true,"NCpu":0,"HeartbeatUrl":"","HeartbeatInterval":10,"HeartbeatExternal":"","HeartbeatNetworkInterface":"","ReplaceHashTag":false,"ExtraInfo":false,"SockFileName":"","SockFileSize":0,"FilterKey":null,"FilterDB":"","Rewrite":false,"SourceAddressList":["172.25.253.0:7002","172.25.253.0:7000","172.25.253.0:7001"],"TargetAddressList":["172.25.253.0:8000","172.25.253.0:8001","172.25.253.0:8002","172.25.253.0:8003","172.25.253.0:8004"],"SourceVersion":"5.0.12","HeartbeatIp":"127.0.0.1","ShiftTime":0,"TargetReplace":true,"TargetDB":-1,"Version":"develop,d7cb0297f121e2f441d3636ef363871aa2ab5e25,go1.14.4,2020-07-24_17:19:07","Type":"sync"}
2021/03/20 15:55:10 [INFO] DbSyncer[0] starts syncing data from 172.25.253.0:7002 to [172.25.253.0:8000 172.25.253.0:8001 172.25.253.0:8002 172.25.253.0:8003 172.25.253.0:8004] with http[9323], enableResumeFromBreakPoint[false], slot boundary[-1, -1]
2021/03/20 15:55:10 [INFO] DbSyncer[2] starts syncing data from 172.25.253.0:7001 to [172.25.253.0:8000 172.25.253.0:8001 172.25.253.0:8002 172.25.253.0:8003 172.25.253.0:8004] with http[9323], enableResumeFromBreakPoint[false], slot boundary[-1, -1]
2021/03/20 15:55:10 [INFO] DbSyncer[1] starts syncing data from 172.25.253.0:7000 to [172.25.253.0:8000 172.25.253.0:8001 172.25.253.0:8002 172.25.253.0:8003 172.25.253.0:8004] with http[9323], enableResumeFromBreakPoint[false], slot boundary[-1, -1]
2021/03/20 15:55:10 [INFO] DbSyncer[1] psync connect '172.25.253.0:7000' with auth type[auth] OK!
2021/03/20 15:55:10 [INFO] DbSyncer[0] psync connect '172.25.253.0:7002' with auth type[auth] OK!
2021/03/20 15:55:10 [INFO] DbSyncer[2] psync connect '172.25.253.0:7001' with auth type[auth] OK!
2021/03/20 15:55:10 [INFO] DbSyncer[1] psync send listening port[9320] OK!
2021/03/20 15:55:10 [INFO] DbSyncer[2] psync send listening port[9320] OK!
2021/03/20 15:55:10 [INFO] DbSyncer[0] psync send listening port[9320] OK!
2021/03/20 15:55:10 [INFO] DbSyncer[1] try to send 'psync' command: run-id[?], offset[-1]
2021/03/20 15:55:10 [INFO] DbSyncer[2] try to send 'psync' command: run-id[?], offset[-1]
2021/03/20 15:55:10 [INFO] DbSyncer[0] try to send 'psync' command: run-id[?], offset[-1]
2021/03/20 15:55:10 [INFO] Event:FullSyncStart Id:redis-shake
2021/03/20 15:55:10 [INFO] DbSyncer[1] psync runid = 4a2a6e97a05ea7c3ade676209efea6bab61638bc, offset = 444709, fullsync
2021/03/20 15:55:10 [INFO] Event:FullSyncStart Id:redis-shake
2021/03/20 15:55:10 [INFO] DbSyncer[0] psync runid = 3889e6f11bb538d4c21fcd148e9c35715c316a90, offset = 355726, fullsync
2021/03/20 15:55:10 [INFO] Event:FullSyncStart Id:redis-shake
2021/03/20 15:55:10 [INFO] DbSyncer[2] psync runid = 8be6cbd6f67e8b66867e8ca8a3e9cba755c84008, offset = 444493, fullsync
2021/03/20 15:55:11 [INFO] DbSyncer[0] rdb file size = 200163
2021/03/20 15:55:11 [INFO] Aux information key:redis-ver value:5.0.12
2021/03/20 15:55:11 [INFO] Aux information key:redis-bits value:64
2021/03/20 15:55:11 [INFO] Aux information key:ctime value:1616226910
2021/03/20 15:55:11 [INFO] Aux information key:used-mem value:3310920
2021/03/20 15:55:11 [INFO] Aux information key:repl-stream-db value:0
2021/03/20 15:55:11 [INFO] Aux information key:repl-id value:3889e6f11bb538d4c21fcd148e9c35715c316a90
2021/03/20 15:55:11 [INFO] Aux information key:repl-offset value:355726
2021/03/20 15:55:11 [INFO] Aux information key:aof-preamble value:0
2021/03/20 15:55:11 [INFO] db_size:3344 expire_size:0
2021/03/20 15:55:11 [INFO] DbSyncer[2] rdb file size = 223563
2021/03/20 15:55:11 [INFO] Aux information key:redis-ver value:5.0.12
2021/03/20 15:55:11 [INFO] Aux information key:redis-bits value:64
2021/03/20 15:55:11 [INFO] Aux information key:ctime value:1616226910
2021/03/20 15:55:11 [INFO] Aux information key:used-mem value:3380008
2021/03/20 15:55:11 [INFO] Aux information key:repl-stream-db value:0
2021/03/20 15:55:11 [INFO] Aux information key:repl-id value:8be6cbd6f67e8b66867e8ca8a3e9cba755c84008
2021/03/20 15:55:11 [INFO] Aux information key:repl-offset value:444493
2021/03/20 15:55:11 [INFO] Aux information key:aof-preamble value:0
2021/03/20 15:55:11 [INFO] db_size:3345 expire_size:0
2021/03/20 15:55:11 [INFO] DbSyncer[1] rdb file size = 222914
2021/03/20 15:55:11 [INFO] Aux information key:redis-ver value:5.0.12
2021/03/20 15:55:11 [INFO] Aux information key:redis-bits value:64
2021/03/20 15:55:11 [INFO] Aux information key:ctime value:1616226910
2021/03/20 15:55:11 [INFO] Aux information key:used-mem value:3375512
2021/03/20 15:55:11 [INFO] Aux information key:repl-stream-db value:0
2021/03/20 15:55:11 [INFO] Aux information key:repl-id value:4a2a6e97a05ea7c3ade676209efea6bab61638bc
2021/03/20 15:55:11 [INFO] Aux information key:repl-offset value:444709
2021/03/20 15:55:11 [INFO] Aux information key:aof-preamble value:0
2021/03/20 15:55:11 [INFO] db_size:3330 expire_size:0
2021/03/20 15:55:12 [INFO] DbSyncer[0] total = 195.47KB - 127.74KB [ 65%] entry=1005
2021/03/20 15:55:12 [INFO] DbSyncer[2] total = 218.32KB - 124.72KB [ 57%] entry=949
2021/03/20 15:55:12 [INFO] DbSyncer[1] total = 217.69KB - 151.26KB [ 69%] entry=1016
2021/03/20 15:55:13 [INFO] DbSyncer[0] total = 195.47KB - 184.66KB [ 94%] entry=2109
2021/03/20 15:55:13 [INFO] DbSyncer[2] total = 218.32KB - 217.07KB [ 99%] entry=2296
2021/03/20 15:55:13 [INFO] DbSyncer[1] total = 217.69KB - 210.68KB [ 96%] entry=2169
2021/03/20 15:55:14 [INFO] DbSyncer[0] total = 195.47KB - 195.47KB [100%] entry=3097
2021/03/20 15:55:14 [INFO] DbSyncer[2] total = 218.32KB - 218.32KB [100%] entry=3311
2021/03/20 15:55:14 [INFO] DbSyncer[2] total = 218.32KB - 218.32KB [100%] entry=3345
2021/03/20 15:55:14 [INFO] DbSyncer[2] sync rdb done
2021/03/20 15:55:14 [INFO] DbSyncer[1] total = 217.69KB - 217.69KB [100%] entry=3221
2021/03/20 15:55:14 [INFO] DbSyncer[2] FlushEvent:IncrSyncStart Id:redis-shake
2021/03/20 15:55:14 [INFO] DbSyncer[0] total = 195.47KB - 195.47KB [100%] entry=3344
2021/03/20 15:55:14 [INFO] DbSyncer[0] sync rdb done
2021/03/20 15:55:14 [INFO] DbSyncer[0] FlushEvent:IncrSyncStart Id:redis-shake
2021/03/20 15:55:14 [INFO] DbSyncer[1] total = 217.69KB - 217.69KB [100%] entry=3330
2021/03/20 15:55:14 [INFO] DbSyncer[1] sync rdb done
2021/03/20 15:55:14 [INFO] DbSyncer[1] FlushEvent:IncrSyncStart Id:redis-shake
2021/03/20 15:55:15 [INFO] DbSyncer[2] sync: +forwardCommands=0 +filterCommands=0 +writeBytes=0
2021/03/20 15:55:15 [INFO] DbSyncer[0] sync: +forwardCommands=0 +filterCommands=0 +writeBytes=0
2021/03/20 15:55:15 [INFO] DbSyncer[1] sync: +forwardCommands=0 +filterCommands=0 +writeBytes=0
2021/03/20 15:55:16 [INFO] DbSyncer[2] sync: +forwardCommands=0 +filterCommands=0 +writeBytes=0
2021/03/20 15:55:16 [INFO] DbSyncer[0] sync: +forwardCommands=0 +filterCommands=0 +writeBytes=0
2021/03/20 15:55:16 [INFO] DbSyncer[1] sync: +forwardCommands=0 +filterCommands=0 +writeBytes=0
2021/03/20 15:55:17 [INFO] DbSyncer[2] sync: +forwardCommands=1 +filterCommands=0 +writeBytes=4
...
当观察到sync rdb done，表面全量迁移完成，接下来是增量迁移。
经测试，利用工具redis-shake，可以快速对Redis集群的数据进行迁移。
问题
·网络连通性，端口需要确认。
·100W条数据，4分钟左右。
·全量/部分。
版权声明：本文出自51Testing会员投稿，51Testing软件测试网及相关内容提供者拥有内容的全部版权，未经明确的书面许可，任何人或单位不得对本网站内容复制、转载或进行镜像，否则将追究法律责任。
