注意:目前不支持4.0.X及以上的redis使用
Redis 集群迁移工具,基于redis复制,快速,稳定。
github链接:https://github.com/vipshop/redis-migrate-tool
特点:
- •快速。
- •多线程。
- •基于redis复制。
- •实时迁移。
- •迁移过程中,源集群不影响对外提供服务。
- •异构迁移。
- •支持Twemproxy集群,redis cluster集群,rdb文件 和 aof文件。
- •过滤功能。
- •当目标集群是Twemproxy,数据会跳过Twemproxy直接导入到后端的redis。
- •迁移状态显示。
- •完善的数据抽样校验。
迁移工具的来源可以是:单独的redis实例,twemproxy集群,redis cluster,rdb文件,aof文件。
迁移工具的目标可以是:单独的redis实例,twemproxy集群,redis cluster,rdb文件。
#安装依赖:
yum install autoconf automake libtool bzip2
#linux机器上下载包
git clone https://github.com/vipshop/redis-migrate-tool
软件编译安装:
$ cd redis-migrate-tool
$ autoreconf -fvi
$ ./configure
$ make
$ src/redis-migrate-tool -h
软件运行:
src/redis-migrate-tool -c rmt.conf -o log -d
配置文件示例:从redis cluster集群迁移数据到twemproxy集群
[source]type: redis clusterservers:- 127.0.0.1:6379
[target]type: twemproxyhash: fnv1a_64hash_tag: "{}"distribution: ketamaservers:- 127.0.0.1:6380:1 server1- 127.0.0.1:6381:1 server2- 127.0.0.1:6382:1 server3- 127.0.0.1:6383:1 server4
[common]listen: 0.0.0.0:34345threads: 8step: 1mbuf_size: 512source_safe: true
配置文件示例:从redis cluster集群迁移数据到另外一个cluster集群
[source]type: redis clusterservers:- 127.0.0.1:8379
[target]type: redis clusterservers:- 127.0.0.1:7379
[common]listen: 0.0.0.0:8888
配置文件示例:从rdb文件恢复数据到redis cluster集群[source]
type: rdb fileservers:
- /data/redis/dump1.rdb
- /data/redis/dump2.rdb
- /data/redis/dump3.rdb
[target]type: redis clusterservers:
- 127.0.0.1:7379
[common]listen: 0.0.0.0:8888
配置文件示例:从单机迁移数据到另外一个单机
[source]
type: single
servers :
-192.168.0.2:6379
redis_auth:redis
[target]
type: single
servers:
-192.168.0.5:6379
[common]
listen: 0.0.0.0:9999
状态查看:通过redis-cli连接redis-migrate-tool监控的端口,运行info命令
$redis-cli -h 127.0.0.1 -p 8888127.0.0.1:8888> info# Serverversion:0.1.0os:Linux 2.6.32-573.12.1.el6.x86_64 x86_64multiplexing_api:epollgcc_version:4.4.7process_id:9199tcp_port:8888uptime_in_seconds:1662uptime_in_days:0config_file:/ect/rmt.conf
# Clientsconnected_clients:1max_clients_limit:100total_connections_received:3
# Memorymem_allocator:jemalloc-4.0.4
# Groupsource_nodes_count:32target_nodes_count:48
# Statsall_rdb_received:1all_rdb_parsed:1rdb_received_count:32rdb_parsed_count:32total_msgs_recv:7753587total_msgs_sent:7753587total_net_input_bytes:234636318total_net_output_bytes:255384129total_net_input_bytes_human:223.77Mtotal_net_output_bytes_human:243.55Mtotal_mbufs_inqueue:0total_msgs_outqueue:0127.0.0.1:8888>
查看log:
[root@redis04 redis-migrate-tool-master]# tail -f log
[2018-09-11 10:20:30.828] rmt_core.c:2551 migrate job is running...
[2018-09-11 10:20:30.828] rmt_redis.c:1706 Start connecting to MASTER[192.168.0.2:6379].
[2018-09-11 10:20:30.828] rmt_redis.c:1740 Master[192.168.0.2:6379] replied to PING, replication can continue...
[2018-09-11 10:20:30.829] rmt_redis.c:1051 Partial resynchronization for MASTER[192.168.0.2:6379] not possible (no cached master).
[2018-09-11 10:20:30.829] rmt_redis.c:1110 Full resync from MASTER[192.168.0.2:6379]: 05f9812b79e1e3e1ca95487d7acd360df644ad0a:18683803
[2018-09-11 10:20:31.120] rmt_redis.c:1517 MASTER <-> SLAVE sync: receiving 7844908 bytes from master[192.168.0.2:6379]
[2018-09-11 10:20:31.131] rmt_redis.c:1623 MASTER <-> SLAVE sync: RDB data for node[192.168.0.2:6379] is received, used: 0 s
[2018-09-11 10:20:31.131] rmt_redis.c:1643 rdb file node192.168.0.2:6379-1536632430829999-11046.rdb write complete
[2018-09-11 10:20:31.256] rmt_redis.c:6601 Rdb file for node[192.168.0.2:6379] parsed finished, use: 0 s.
[2018-09-11 10:20:31.258] rmt_redis.c:6709 All nodes' rdb file parsed finished for this write thread(0).
数据校验:
[root@redis04 redis-migrate-tool-master]# src/redis-migrate-tool -c rmt.conf -o log -C redis_check
Check job is running...
Checked keys: 1000
Inconsistent value keys: 0
Inconsistent expire keys : 0
Other check error keys: 0
Checked OK keys: 1000
All keys checked OK!
Check job finished, used 0.007s
参考来源:https://www.cnblogs.com/luckcs/articles/6477261.html